INTRODUCTION MARKET SECTORS CUSTOMER SERVICE CCL OFFERS YOU. Switchmode Technology A highly efficient, lightweight

CCL OFFERS YOU Switchmode Technology A highly efficient, lightweight and compact charging technology. Providing less than 1% ripple output, this technology is especially suitable for VRLA batteries. CCL provide units ranging from 50W to 250W, all of which are of modular design, allowing series and parallel connection of individual charger boards. Thyristor Controlled Technology An industrial range of battery chargers suitable for high rate battery charging of VRLA, Vented Lead Acid or NiCad batteries. CCL provide units ranging from 100VA upwards. A UL approved range is also available. INTRODUCTION Formed in 1984, Computronic Controls Ltd (CCL) has become a market leader in the design and manufacture of professional battery chargers, power supplies and specialist electronics controllers. Located in Birmingham (UK) CCL is ideally positioned with excellent road, rail and air links to serve both domestic and international companies. MARKET SECTORS All CCL products are tested to EC standards 73/23/EEC (generic emissions) and 89/336/EEC (low voltage directive) and carry appropriate CE approval. Utilising their inhouse expertise and own vigorous testing procedures, CCL have also developed products which carry UL and CSA approvals which allow CCL s products to be sold worldwide with recognised quality assurances. In addition to high standards of testing, CCL is an ISO9000 registered company. Switchable Output Chargers The SW5 and SW6 ranges, provide versatile, free standing charging solutions for both nimh, NiCads and Lead Acid batteries. CCL serves many markets requiring specialist application knowledge ranging from: generating power sets, building controls, telecommunications, medical equipment to name but a few. TECHNOLOGY MANUFACTURING Wall Mounted Enclosure Chargers A stainless steel enclosure encompassing a range of both the switchmode and thyristor controlled chargers. Ideal for the workshop and factory environment as well as fitting direct into panels. Desk Top Chargers A range of multi stage intelligent battery chargers in a compact, ergonomic, free standing design. Using the very latest technology critical components are designed and manufactured inhouse giving CCL s product range unrivalled performance tuned specifically to an application s requirements. CCL has exceptional experience in the use of thyristor, switchmode and inductive technology gained over the past 20 years. In addition the combination of application knowledge and microprocessor expertise make it a pioneering company in it s chosen market sectors. Being a fully integrated company, CCL controls all aspects of its production from critical coil windings through to PCB manufacture using the latest surface mount equipment. Batteries As an active distributor for YUASA Batteries Ltd, CCL can supply VRLA batteries, including the complete NP, Endurance and SW range, at competitive prices. CCL also supply NiCad s, NiMH and Vented Lead Acid batteries. CUSTOMER SERVICE The CCL team is dedicated to delivering first class technical support and logistics. With 24hr cover and most products ex-stock urgent requirements can be delivered same day nationally or within 48 hours to most parts of the world.

STOP DAMAGING YOUR BATTERIES! 90% of Gensets failing to start are due to battery problems! Main cause - incorrectly specified battery chargers Overcharged Undercharged High ripple Sealed Lead Acid (VRLA) NiCad VRLA - Sealed Lead Acid Batteries require <5% ripple >5% ripple damages the battery and invalidates your warranty NiCads require a minimum of 10% AH to charge the battery ALL TYPES OF BATTERIES Temperature Float voltages are specified at 20 C Consistent use outside this range requires temperature compensation. Incorrect float voltage Over - causes excess gasses and loss of electrolyte Under - causes sulphation of plates Boost Manual boost requires timing or overcharging will occur Auto boost prevents damage from overcharging Current Limit Chargers not current limited must be isolated when cranking Current limited chargers can be left on without damage

How best to use this catalogue... Select battery technology, monitoring or controls from list below and click on product to go direct to datasheet. Vented Lead Acid Sentry Monitor Guardian SM50 (all types) SM82 (all types) SM135 (all types) SM2 160 (all types) SM2 250 (all types) Enclosed SM Range Vented NiCd Sentry Monitor Guardian SM82 (all types) SM135 (all types) SM2 160 (all types) SM2 250 (all types) Enclosed SM Range Battery Monitoring Under/Over Voltage Low Voltage Disconnect VRLA (Sealed) Guardian Equipment Float All Switchmodes Lead-Acid Desk Tops Sealed NiCd & NiMH NiCD & NiMH Desk Tops Engine & Generator Controls Key Start

Sentry Range of Automatic Battery Chargers Float Charging 3A or 5A @ 12V - 3A or 5A @ 24V Simple, low cost design Lead Acid or Ni-Cd calibrations Optional boost mode Optional charge fail relay output Description The Sentry range provides automatic, current limited and thyristor controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators.the charger uses an open frame construction, designed for surface mounting in an enclosed panel. Each unit consists of a transformer, rectifier and control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, whilst supplying any additional loads current up to the specified maximum. When used as a float charger the unit is designed to give a constant current output up to its knee point (approx. 13V on a 12V LA) at which point the current will ramp down as the battery reaches it s float voltage giving an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level. Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is a link via two terminals, allowing activation by a time delay relay or switch. The calibration table over leaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault or loss of AC input. Electrical connection of the AC supply, DC output, boost selector link and charge fail relay are via spring clamp connection Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: Warranty 110-120 VAC (115V Units) 220-240 VAC (230V Units) 260-295 VAC (277V Units) ± 6% of nominal 50-60Hz maximum current ADC 5 5 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity see table over leaf volt free SPDT contacts relay energised on fault 1A @ 30V,DC (resistive load) -10 to +55 C see table over leaf see table over leaf EN 58801-2 / EN50082-2 A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the sentry range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented chargers see the switch mode range. If in doubt, contact our technical department. Dimensions END VIEW SIDE VIEW PLAN VIEW (Height) Fixing Holes 98.80mm S75 S100 S120 L mm 105 148 148 W mm 113 110 110 H mm 90 100 110 Weight Kg 1.2 1.8 2.6 (Width) How to order (Length) When ordering, please specify:- Fixing Holes Sentry 100 & 120-130mm Sentry 75-90mm Fixing holes Ø=6mm PRODUCT S75123 S100243 S100125 S120245 Output VDC 12 24 CODE C D E LA 10 18 20 Output Current 3 5 INPUT VOLTAGE 230VAC 115VAC Lead Acid 10 Cell Ni Cad 277VAC BATTERY TYPE 18 Cell Ni Cad 20 Cell Ni Cad CF MB Charge Fail OPTIONS Manual Boost Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. S100125 D LA CF The above example shows the order code for a 230 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. - Options Options Insert options when required, if no options are required, leave empty. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: Sent-OF Issue1 July 03

Enclosed Sentry Range of Automatic Battery Chargers Float Charging 3A or 5A @ 12V - 3A, 5A or 7A @ 24V DC ammeter Lead Acid or Ni-Cd calibrations Optional boost mode Optional charge fail relay output Stainless steel enclosure This document describes the enclosed option for the Sentry range of chargers. Description The Sentry range provides fully automatic, current limited, thyristor controlled, charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators.the charger comes in a wall mounting enclosure complete with mains switch, output fuse and ammeter. Each unit consists of a transformer, rectifier and control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminals, allowing activation by a time delay relay or switch. The calibration table over leaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault or loss of AC input. Electrical connection of the AC supply, DC output charge fail relay and boost connector link are via spring clamp connections. Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: Warranty 110-120 VAC (115V Units) 220-240 VAC (230V Units) 260-295 VAC (277V Units) ± 6% of nominal 50-60Hz maximum current ADC 5 5 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity see table over leaf volt free SPDT contacts relay energized on fault 1A @ 30V,DC (resistive load) -10 to +55 C see table over leaf see table over leaf EN 58801-2 / EN50082-2 A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the sentry range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented chargers see the switch mode range. If in doubt, contact our technical departement. Dimensions PLAN VIEW END VIEW SIDE VIEW 140mm 270mm 115mm 270mm 255mm ES75 & 100 ES120 Weight 2.95Kg 6.5lbs 3.45Kg 7.7lbs 66mm Fixing holes Ø=8mm How to order When ordering, please specify:- PRODUCT ES75123 ES100243 ES100125 ES120245 CODE C D E Output VDC 12 24 LA 10 18 20 Output Current 5 3 115VAC INPUT VOLTAGE 230VAC Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 7 277VAC 20 Cell Ni Cad CF MB Charge Fail OPTIONS Manual Boost Product ES100125 Input volts D Battery type The above 3 part number codes must be filled in to complete your order. LA - Options CF Options Insert options when required, if no options are required, leave empty. The above example shows the order code for an enclosed Sentry with a 230 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ES Issue1 July 03

Sentry-7 Range of Automatic Battery Chargers Approval Float Charging 5A or 10A @ 12V - 3A or 5A @ 24V Autoboost operation Lead Acid or Ni-Cd calibrations Temperature compensation Description The Sentry-7 range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in an open frame construction, designed for surface mounting in an enclosed panel. Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This operation equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost intitiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficiant of 3mV/ C/Cell. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC and DC supply and alarms are via spring-clamp terminals. (For more information on these terminals see Computronic Controls Product Change Ref: CCL PC Release 1 - April03) Optional charge fail relay output Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: 120V Units 240V Units ± 6% of nominal 50-60Hz maximum current ADC 5 10 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: see table over leaf volt free SPDT contacts relay de-energised on fault 1A @ 30V,DC (resistive load) operating temperature -10 to +55 C overall dimensions see table over leaf weight see table over leaf EMC emission / immunity EN58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the Sentry-7 range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented batteries see the switch mode range. If in doubt, contact our technical department. Dimensions END VIEW SIDE VIEW PLAN VIEW (Width) (Height) (Length) Fixing Holes S7100 & S7120-98.8mm / 3.9" Fixing Holes S7100 & S7120-130mm / 5.1" S7100 S7120 L 148mm 5.8 148mm 5.8 Fixing holes Ø=6mm W 110mm 4.3 110mm 4.3 H 110mm 4.3 110mm 4.3 Weight 1.8Kg 4.05lbs 2.8Kg 6.3lbs How to order PRODUCT S7100243 S7100125 S7120245 S71201210 Output VDC 12 24 CODE A B LA 10 18 20 When ordering, please specify:- Output Current 3 5 10 INPUT VOLTAGE 120VAC 240VAC Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad CF TC OPTIONS Temperature Charge Fail Compensation Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. S7100125 A LA CF - Options Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a 120 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: S7 OF Issue1 April 2004

Sentry Range of UL/CSA Approved Automatic Battery Chargers C Approvals Float Charging 5A or 10A @ 12V - 3A or 5A @ 24V Autoboost operation Electronic self-resetting output fuse protection Description The Sentry UL range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in an open frame construction, designed for surface mounting in an enclosed panel. Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This operation equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost initiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Electronic Self-Resetting Fuse The output is protected by an electronic fuse which protects against both short circuit and reverse polarity faults. In either event, disconnection of the DC output will reset the fuse and allow correct reconnection without the need to manually replace any fuses. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficient of 3mV/ C/Cell. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC and DC supply and alarms are via spring-clamp terminals. Temperature compensation Optional charge fail relay output Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: 120V Units 240V Units ± 6% of nominal 50-60Hz maximum current ADC 5 10 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: see table over leaf volt free SPDT contacts relay de-energised on fault 1A @ 30V,DC (resistive load) operating temperature -10 to +55 C overall dimensions see table over leaf weight see table over leaf EMC emission / immunity EN58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the Sentry UL range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented batteries see the switch mode range. If in doubt, contact our technical department. Dimensions END VIEW SIDE VIEW PLAN VIEW (Width) (Height) (Length) Fixing Holes SUL100 & 120-98.8mm / 3.9" Fixing Holes SUL 100 & 120-130mm / 5.1" SUL100 SUL120 L 148mm 5.8 168mm 6.6 Fixing holes Ø=6mm W 110mm 4.3 110mm 4.3 H 110mm 4.3 123mm 4.8 Weight 2.6Kg 5.5lbs 6.4Kg 13.6lbs How to order When ordering, please specify:- PRODUCT SUL100243 SUL100125 SUL120245 SUL1201210 Output VDC 12 24 Output Current 3 5 10 CF TC OPTIONS Temperature Charge Fail Compensation CODE A B INPUT VOLTAGE 120VAC 240VAC LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. - Options SUL100125 A LA CF Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a UL approved 120 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SentULOF Issue1 December 03

Enclosed Sentry Range of UL/CSA Approved Automatic Battery Chargers C Approvals Float Charging 5A or 10A @ 12V - 3A or 5A @ 24V Autoboost operation Electronic self-resetting output fuse protection Temperature compensation Description The Sentry UL range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in a wall mounting stainless steel enclosure, complete with ammeter indication. Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost intitiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Electronic Self-Resetting Fuse The output is protected by an electronic fuse which protects against both short circuit and reverse polarity faults. In either event, disconnection of the DC output will reset the fuse and allow correct reconnection without the need to manually replace any fuses. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficiant of 3mV/ C/Cell. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault. Electrical connections are via spring-clamp terminals. Optional charge fail relay output Stainless steel enclosure Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: 120V Units 240V Units ± 6% of nominal 50-60Hz maximum current ADC 5 10 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: see table over leaf volt free SPDT contacts relay de-energised on fault 1A @ 30V,DC (resistive load) operating temperature -10 to +55 C overall dimensions see table over leaf weight see table over leaf EMC emission / immunity EN58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the Sentry UL range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented batteries see the switch mode range. If in doubt, contact our technical department. Dimensions (Height) END VIEW (Width) SIDE VIEW (Length) Fixing Holes ESUL 100 & 120-274mm / 10.75" PLAN VIEW Fixing Holes ESUL 100 & 120-66mm / 2.6" ESUL100 ESUL120 L 281mm 11.1 281mm 11.1 Fixing holes Ø=6mm W 140mm 5.5 140mm 5.5 H 115mm 4.5 115mm 4.5 Weight 5.6Kg 11.9lbs 9.4Kg 19.9lbs How to order When ordering, please specify:- PRODUCT ESUL100243 ESUL100125 ESUL120245 ESUL1201210 Output VDC 12 CODE A B 24 Output Current 3 5 10 INPUT VOLTAGE 120VAC 240VAC CF TC OPTIONS Temperature Charge Fail Compensation LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. - Options ESUL100125 A LA CF Options Insert options when required, if no options are required, leave empty. The above example shows the order code for an enclosed UL approved 120 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESULIss7 Issue1 December 03

Enclosed Sentry-L Range of UL/CSA Approved Automatic Battery Chargers C Approvals Float Charging 5A or 10A @ 12V - 3A or 5A @ 24V Autoboost operation Electronic self-resetting output fuse protection Description The Sentry-L UL range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in a wall mounting stainless steel enclosure, complete with voltmeter and ammeter indication and optional mains circuit breaker. Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This operation equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost initiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Electronic Self-Resetting Fuse The output is protected by an electronic fuse which protects against both short circuit and reverse polarity faults. In either event, disconnection of the DC output will reset the fuse and allow correct reconnection without the need to manually replace any fuses. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficient of 3mV/ C/Cell. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC and DC supply and alarms are via spring-clamp terminals. Temperature compensation Optional charge fail relay output Stainless steel enclosure Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Output: 120V Units 240V Units ± 6% of nominal 50-60Hz maximum current ADC 5 10 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: see table over leaf volt free SPDT contacts relay de-energised on fault 1A @ 30V,DC (resistive load) operating temperature -10 to +55 C overall dimensions see table over leaf weight see table over leaf EMC emission / immunity EN58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth *Note: the Sentry UL range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented batteries see the switch mode range. If in doubt, contact our technical department. Dimensions W D H Weight ESLUL100 278mm 10.9 120mm 4.7 280mm 11 8.4Kg 17.9lbs Height ESLUL120 300mm 11.8 300mm 11.8 210mm 8.3 15Kg 31.8lbs Width A V Depth Fixing hole dimensions: Width (between holes) - 173mm (6.8 ) Height (between holes)- 255mm (10 ) Fixing holes Ø=6mm (0.2 ) How to order When ordering, please specify:- PRODUCT ESLUL100243 ESLUL100125 ESLUL120245 ESLUL120121 Output VDC 12 24 CODE A B Output Current 3 5 10 INPUT VOLTAGE 120VAC 240VAC CF TC MCB Charge Fail OPTIONS Temperature Compensation Mains Circuit Breaker LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. ESLUL100125 A LA - Options Options Options Insert options when required, if no options are required, leave empty. CF TC MCB The above example shows the order code for an enclosed UL approved 120 VAC input, 12V@5A,DC output charger, calibrated for a vented lead acid battery, and with the charge fail, temperature compensation and mains input circuit breaker protection options. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESLULIss7 Issue1 February 2004

Sentinel series Automatic switch mode battery chargers High rate float charging: 5 or 10A @ 12 VDC, 5A @ 24VDC Automatic charge regulation Light, compact design Short circuit and reverse polarity protection Temperature compensation Auto Boost models Fault output options Description The Sentinel is a highly efficient, high performance charger, designed for continuous float charging and standby battery applications. Switch mode technology provides major advances in power supply and battery charger design, giving a compact and lightweight construction, improved efficiency and low heat dissipation, wide supply voltage tolerance and low output ripple. Sentinel chargers are configured for fast, accurate charging, to give optimum battery life and reliability. The very smooth output (< 1% ripple) allows charging of sealed or vented batteries e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and Plante cells or use as a stand-alone power supply. Sentinel features an intelligent, multi-stage charge regime: during charge recovery mode, the charger gives a constant (maximum) current output; as the battery approaches peak charge, the output reverts to float charge mode, maintaining an optimum cell voltage and supplying additional standing load current up to the specified maximum. The Sentinel range is available in two variants: SNS models provide basic charging; SNL models provide higher specification features and options. Auto Boost SNL models include an Auto boost feature. Auto boost provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. On MB option chargers, Auto Boost can be initiated manually by linking two boost terminals, e.g. via a panel switch or momentary push button. Once the batteries have reached the boost voltage level, Sentinel reverts to its normal float charge mode, preventing battery over-charge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. All SNS and SNL models are fitted with on-board temperature sensing and output compensation (3mV/cell decrease for each C increase). For even greater temperature accuracy, TC option units are supplied with a remotely connected Product specifications power supply: supply voltage, operating frequency DC charge output: 120 V units: 240 V units: SNS70 SNL70 (12V) SNS140 SNL140 (24V) 85 135 V ac 185 305 V ac 47 63 Hz SNL140 (12V) maximum current limit 5 5 10 nominal voltage 12 24 12 line regulation +/ 1% load regulation +/ 1% output ripple < 1% float / boost voltages see table overleaf fault outputs: charge fail (CF option) / alarm (A option) output general: operating temperature humidity dimensions weight: SNS, SNL EMC emission / immunity negative DC during fault (switched SPNC contact, relay de-energising on fault), rated 1A max. @ 30 VDC (resistive load) -20 to +55 C 20% to 90% RH see table overleaf 0.55 Kg / 1.2lb, 0.6 Kg / 1.3lb EN50081-2 / EN50082-2 temperature sensor and 3 metre lead assembly (other lengths available to special order). Alarm output SNS and SNL models are available with an optional CF charge fail relay output. For more comprehensive fault warning, the SNL A (alarm) option provides an output for signalling of DC fuse failure, high or low battery voltage, or AC supply/fuse failure. Installation and connection Circuit board connection is via screw terminal blocks. The circuit board and protective cover are mounted on a baseplate/heatsink, designed for surface mounting in an enclosed control panel. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request.

Electrical connection Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Temperature compensation causes output voltage to automatically decrease (or increase) at a rate of 3mV per cell, per C increase (or decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 13.6 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 Dimensions SNS SNL SNS SNL Overall:- W 105mm / 4.13 H1 130mm / 5.19 150mm / 5.91 H2 117mm / 4.61 D 72mm / 2.83 Fixing holes:- X 99mm / 3.90 Y1 65mm / 2.56 75mm / 2.95 Y2 n/a 65mm / 2.56 How to order When ordering, please specify:- Note: Stainless steel, wall-mounted enclosure versions of the Sentinel are also available: see datasheet cd0014 Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom Tel: +44 121 327 8500 Fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Sentinel datasheet cd0008 issue 1 5th November 2007

Enclosed Sentinel series Automatic switch mode battery chargers High rate float charging: 5 or 10A @ 12 VDC, 5A @ 24VDC Automatic charge regulation Stainless steel, wall mounted enclosure with ammeter Temperature compensation Auto boost models Fault output options Description The Enclosed Sentinel is a highly efficient, high performance charger, designed for continuous float charging and standby battery applications. Switch mode technology provides major advances in power supply and battery charger design, giving a compact and lightweight construction, improved efficiency and low heat dissipation, wide supply voltage tolerance and low output ripple. Sentinel chargers are configured for fast, accurate charging, to give optimum battery life and reliability. The very smooth output (< 1% ripple) allows charging of sealed or vented batteries e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and Plante cells or use as a stand-alone power supply. Sentinel features an intelligent, multi-stage charge regime: during charge recovery mode, the charger gives a constant (maximum) current output; as the battery approaches peak charge, the output reverts to float charge mode, maintaining an optimum cell voltage and supplying additional standing load current up to the specified maximum. The Enclosed Sentinel range is available in two variants: ESNS models provide basic charging; ESNL models provide higher specification features and options. Auto Boost SNL models include an Auto boost feature. Auto boost provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. On MB option chargers, autoboost can be initiated manually by linking two boost terminals, e.g. via a panel switch or momentary push button. Once the batteries have reached the boost voltage level, Sentinel reverts to its normal float charge mode, preventing battery over-charge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. All models are fitted with on-board temperature sensing and output compensation (3mV/cell decrease for each C increase). For even greater temperature accuracy, TC option units Product specifications power supply: supply voltage, operating frequency DC charge output: 120 V units: 240 V units: ESNS70 ESNL70 (12V) ESNS140 ESNL140 (24V) 85 135 V ac 185 305 V ac 47 63 Hz ESNL140 (12V) maximum current limit 5 5 10 nominal voltage 12 24 12 line regulation +/ 1% load regulation +/ 1% output ripple < 1% float / boost voltages see table overleaf fault outputs: charge fail (CF option) / alarm (A option) output general: operating temperature humidity dimensions weight EMC emission / immunity negative DC during fault (switched SPNC contact, relay de-energising on fault), rated 1A max. @ 30 VDC (resistive load) -20 to +55 C 20% to 90% RH see table overleaf 1.6 Kg / 3.5 lb EN50081-2 / EN50082-2 are supplied with a remotely connected temperature sensor and 3 metre lead assembly (other lengths available to order). Alarm output All models are available with an optional CF charge fail relay output. For more comprehensive fault warning, the ESNL A (alarm) option provides an output for signalling of DC fuse failure, high or low battery voltage, or AC supply/ fuse failure. Installation and connection Circuit board connection is via screw terminal blocks. The circuit board and baseplate/heatsink are mounted in a stainless steel, wall-mounted enclosure with charge ammeter. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request.

Electrical connection Dimensions Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Temperature compensation causes output voltage to automatically decrease (or increase) at a rate of 3mV per cell, per C increase (or decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 136 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 How to order When ordering, please specify:- Overall:- W 142mm / 5.59 H1 268mm / 10.55 H2 85mm / 3.35 D1 130mm / 5.12 D2 222mm / 8.74 Fixing holes:- X 64mm / 2.52 Y 274mm / 10.79 Note: Sentinel modules for mounting in pre-existing enclosures are also available: see datasheets cd0013 (UL) and cd0008 (non-ul) Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom Tel: +44 121 327 8500 Fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Enclosed Sentinel datasheet cd0015 issue 1 5 th November 2007

Sentinel UL series Automatic switch mode battery chargers Description The Sentinel UL is a highly efficient, high performance charger, designed for continuous float charging and standby battery applications. Switch mode technology provides major advances in power supply and battery charger design, giving a compact and lightweight construction, improved efficiency and low heat dissipation, wide supply voltage tolerance and low output ripple. Sentinel chargers are configured for fast, accurate charging, to give optimum battery life and reliability. The very smooth output (< 1% ripple) allows charging of sealed or vented batteries e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and Plante cells or use as a stand-alone power supply. Sentinel features an intelligent, multi-stage charge regime: during charge recovery mode, the charger gives a constant (maximum) current output; as the battery approaches peak charge, the output reverts to float charge mode, maintaining an optimum cell voltage and supplying additional standing load current up to the specified maximum. The Sentinel range is available in two variants: SNSUL models provide basic charging; SNLUL models provide higher specification features and options. Auto Boost SNLUL models include an Auto boost feature. Auto boost provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. On MB option chargers, autoboost can be initiated manually by linking two boost terminals, e.g. via a panel switch or momentary push button. Once the batteries have reached the boost voltage level, Sentinel reverts to its normal float charge mode, preventing battery over-charge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. All models are fitted with on-board temperature sensing and output compensation (3mV/cell decrease for each C increase). For even greater temperature accuracy, TC option units are supplied with a Approvals High rate float charging: 5 or 10A @ 12 VDC, 5A @ 24VDC Automatic charge regulation Light, compact design Short circuit and reverse polarity protection Temperature compensation Auto boost models Product specifications power supply: supply voltage, operating frequency DC charge output: 120 V units: 240 V units: SNSUL70 SNLUL70 (12V) SNSUL140 SNLUL140 (24V) 85 135 V ac 185 250 V ac 47 63 Hz SNLUL140 (12V) maximum current limit 5 5 10 nominal voltage 12 24 12 line regulation +/ 1% load regulation +/ 1% output ripple < 1% float / boost voltages see table overleaf fault outputs: charge fail (CF option) / alarm (A option) output general: operating temperature humidity dimensions weight: SNS, SNL EMC emission / immunity negative DC during fault (switched SPNC contact, relay de-energising on fault), rated 1A max. @ 30 VDC (resistive load) -20 to +55 C 20% to 90% RH see table overleaf 0.55 Kg / 1.2lb, 0.6 Kg / 1.3lb EN50081-2 / EN50082-2 remotely connected temperature sensor and 3 metre lead assembly (other lengths available to order). Alarm output All models are available with an optional CF charge fail relay output. For more comprehensive fault warning, the SNLUL A (alarm) option provides an output for signalling of DC fuse failure, high or low battery voltage, or AC supply/fuse failure. Installation and connection Circuit board connection is via screw terminal blocks. The circuit board and protective cover are mounted on a baseplate/heatsink, designed for surface mounting in an enclosed control panel. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request.

Electrical connection Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Temperature compensation causes output voltage to automatically decrease (or increase) at a rate of 3mV per cell, per C increase (or decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 13.6 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 Dimensions SNSUL SNLUL SNSUL SNLUL Overall:- W 105mm / 4.13 H1 130mm / 5.19 150mm / 5.91 H2 117mm / 4.61 D 72mm / 2.83 Fixing holes:- X 99mm / 3.90 Y1 65mm / 2.56 75mm / 2.95 Y2 n/a 65mm / 2.56 How to order When ordering, please specify:- Note: Stainless steel, wall-mounted enclosure versions of the Sentinel are also available: see datasheet cd0014 Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom Tel: +44 121 327 8500 Fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Sentinel UL datasheet cd0013 issue 1 5 th November 2007

Enclosed Sentinel UL series Automatic switch mode battery chargers Approvals Description The Enclosed Sentinel is a highly efficient, high performance charger, designed for continuous float charging and standby battery applications. Switch mode technology provides major advances in power supply and battery charger design, giving a compact and lightweight construction, improved efficiency and low heat dissipation, wide supply voltage tolerance and low output ripple. Sentinel chargers are configured for fast, accurate charging, to give optimum battery life and reliability. The very smooth output (< 1% ripple) allows charging of sealed or vented batteries e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and Plante cells or use as a stand-alone power supply. Sentinel features an intelligent, multi-stage charge regime: during charge recovery mode, the charger gives a constant (maximum) current output; as the battery approaches peak charge, the output reverts to float charge mode, maintaining an optimum cell voltage and supplying additional standing load current up to the specified maximum. The Enclosed Sentinel UL range is available in two variants: ESNSUL models provide basic charging; ESNLUL models provide higher specification features and options. Auto Boost ESNLUL models include an Auto boost feature. Auto boost provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. On MB option chargers, autoboost can be initiated manually by linking two boost terminals, e.g. via a panel switch or momentary push button. Once the batteries have reached the boost voltage level, Sentinel reverts to its normal float charge mode, preventing battery over-charge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. All models are fitted with on-board temperature sensing and output compensation (3mV/cell decrease for each C increase). For even greater temperature accuracy, TC option units High rate float charging: 5 or 10A @ 12 VDC, 5A @ 24VDC Automatic charge regulation Stainless steel, wall mounted enclosure with ammeter Temperature compensation Auto boost models Fault output options Product specifications power supply: supply voltage, operating frequency DC charge output: 120 V units: 240 V units: ESNSUL70 ESNLUL70 (12V) ESNSUL140 ESNLUL140 ESNLUL140 (12V) (24V) 85 135 V ac 185 250 V ac 47 63 Hz maximum current limit 5 5 10 nominal voltage 12 24 12 line regulation +/ 1% load regulation +/ 1% output ripple < 1% float / boost voltages see table overleaf fault outputs: charge fail (CF option) / alarm (A option) output general: operating temperature humidity dimensions weight EMC emission / immunity negative DC during fault (switched SPNC contact, relay de-energising on fault), rated 1A max. @ 30 VDC (resistive load) -20 to +55 C 20% to 90% RH see table overleaf 1.6 Kg / 3.5 lb EN50081-2 / EN50082-2 are supplied with a remotely connected temperature sensor and 3 metre lead assembly (other lengths available to order). Alarm output All models are available with an optional CF charge fail relay output. For more comprehensive fault warning, the ESNLUL A (alarm) option provides an output for signalling of DC fuse failure, high or low battery voltage, or AC supply/ fuse failure. Installation and connection Circuit board connection is via screw terminal blocks. The circuit board and baseplate/heatsink are mounted in a stainless steel, wall-mounted enclosure with charge ammeter. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request.

Electrical connection Dimensions Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Temperature compensation causes output voltage to automatically decrease (or increase) at a rate of 3mV per cell, per C increase (or decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 136 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 How to order When ordering, please specify:- Overall:- W 142mm / 5.59 H1 268mm / 10.55 H2 85mm / 3.35 D1 130mm / 5.12 D2 222mm / 8.74 Fixing holes:- X 64mm / 2.52 Y 274mm / 10.79 Note: Sentinel modules for mounting in pre-existing enclosures are also available: see datasheets cd0013 (UL) and cd0008 (non-ul) Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom Tel: +44 121 327 8500 Fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Enclosed Sentinel UL datasheet cd0014 issue 1 5 th November 2007

Guardian series, open frame UL/CSA Approved Automatic Battery Chargers Approvals Description The Guardian is a highly efficient, high performance charger. The output is configured for accurate fast charging, optimum battery life and reliability. High impedance transformer technology gives a low ripple output (<1%) suitable for charging either sealed or vented batteries, e.g. Nickel Cadmium (NiCd), sealed lead acid (VRLA), vented and Plante cells. The Guardian range can be used in a wide range of industrial charging applications, including standby engines, pumps and generators. Each charger consists of a transformer, rectifier and control circuit, in an open frame assembly for easy panel mounting. The control circuit ensures that the charger maintains the battery voltage at the precalibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (equalising) operation Auto boost operation provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. It can also be triggered manually by linking two boost terminals, e.g. via a panel switch or push-button. Once the batteries have reached the boost voltage level, Guardian reverts to its normal float charge mode, preventing battery overcharge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. Guardian chargers provide output temperature compensation as standard: output voltage decreases as ambient temperature increases at a rate of 3mV/ C/cell (see output calibration overleaf). TC option units allow for greater accuracy of ambient temperature measurement, by connection of a remote sensing device (supplied). Heavy duty float charging: 10A or 20A @ 12 VDC or 24VDC Lead acid or NiCd batteries Auto boost operation Temperature compensation NFPA 110 alarm outputs: charge fail, under volts & over volts Short circuit and reverse polarity protection Product specifications power supply: operating voltages operating frequency Alarms option The Guardian A option provides 3 x NFPA110 compliant alarm relay outputs battery under and over volts (with 120 sec delay) and charge fail. Installation and connection Mounting is via slots in the transformer frame. Spring clamp terminals provide secure electrical connection to panel wiring. AC supply input and DC charge output are protected with circuit-board mounted fusing. Please see installation and operation instructions for full details. Warranty 110 120 VAC ±6% or 230 VAC ±10% (specify) 50 or 60 Hz (specify) DC charge output: output current 10 or 20 A DC nominal voltage 12 or 24 V DC voltage ripple < 1% float / boost voltages see table overleaf A option outputs: charge fail, under volts & over volts relays contact rating general: operating temperature dimensions weight EMC emission / immunity SPDT volt free contacts 1A @ 30 V DC (resistive load) -10 to +55 C see table overleaf see table overleaf EN61000-6-4 / EN61000-6-2 A one year limited warranty on materials and workmanship is given with this product. Full details are available on request.

Electrical connection Dimensions Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Output voltage will automatically decrease (increase) at a rate of 3mV per cell, per C increase (decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 13.6 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 How to order When ordering, please specify:- G150, G300 series G600 series Overall:- W1 152mm / 5.98 152mm / 5.98 H1 125mm / 4.92 142mm / 5.59 D 170mm / 6.69 220mm / 8.66 Fixing plate:- W2 125mm / 4.92 130mm / 5.12 H2 110mm / 4.33 130mm / 5.12 X 70mm / 2.76 95mm / 3.74 Y 92mm / 3.62 110mm / 4.33 Weight 7.0 Kg / 15.4 lb 12.5 Kg / 27.5 lb Guardian is also available in a wall-mounted enclosure version see separate datasheet for details. Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom tel: +44 121 327 8500 fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Guardian open frame datasheet cd0001 issue 4 5 th November 2007 p2/2

Guardian series, enclosed UL/CSA Approved Automatic Battery Chargers Approvals Description The Guardian is a highly efficient, high performance charger. The output is configured for accurate fast charging, optimum battery life and reliability. High impedance transformer technology gives a low ripple output (<1%) suitable for charging either sealed or vented batteries, e.g. Nickel Cadmium (NiCd), sealed lead acid (VRLA), vented and Plante cells. The enclosed Guardian range can be used in a wide range of industrial charging applications, including standby engines, pumps and generators. Each charger consists of a transformer, rectifier and control circuit in a metal wall-mounted enclosure with DC ammeter and voltmeter. The control circuit ensures that the charger maintains the battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (equalising) operation Auto boost operation provides a temporary increase in output voltage, equalising the battery charge between cells and maximising battery life and capacity. Auto boost is triggered automatically when the battery falls below a preset voltage. It can also be triggered manually by linking two boost terminals, e.g. via a panel switch or push-button. Once the batteries have reached the boost voltage level, Guardian reverts to its normal float charge mode, preventing battery over-charge and gassing. Temperature compensation The optimum charge voltage for lead acid and NiCd batteries varies with ambient temperature. Guardian chargers provide output temperature compensation as standard: output voltage decreases as ambient temperature increases at a rate of 3mV/ C/cell (see calibration table overleaf). TC option units allow for greater accuracy of ambient temperature measurement, by connection of a remote sensing device (supplied). Heavy duty float charging: 10A or 20A @ 12 VDC or 24VDC Lead acid or NiCd batteries Auto boost operation Temperature compensation NFPA 110 alarm outputs: charge fail, under volts & over volts Wall mounted stainless steel enclosure with DC meters Product specifications power supply: operating voltages operating frequency 110 120 VAC ±6% or 230 VAC ±10% (specify) 50 or 60 Hz (specify) DC charge output: output current 10 or 20 A DC nominal voltage 12 or 24 V DC voltage ripple < 1% float / boost voltages see table overleaf A option outputs: charge fail, under volts & over volts relays contact rating general: operating temperature dimensions weight EMC emission / immunity SPDT volt free contacts 1A @ 30 V DC (resistive load) -10 to +55 C see table overleaf see table overleaf EN61000-6-4 / EN61000-6-2 Alarms option The Guardian A option provides 3 x NFPA110 compliant alarm relay outputs battery under and over volts (with 120 sec delay) and charge fail. Installation and connection Wall or surface-mounting is via slots/holes in the metal enclosure. Connection to panel wiring is by spring clamp terminals, via access holes in the enclosure side. AC supply input and DC charge output are protected with circuit-board mounted fusing. Please see installation and operation instructions for full details. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request.

Electrical connection Dimensions FRONT VIEW SIDE VIEW 2 x fixing holes, 6mm up H2 H1 F F A V F Y F hinged sections H1 Note: battery output is isolated from chassis. Output calibration Calibration figures at 20 deg C. Output voltage will automatically decrease (increase) at a rate of mv per cell, per C increase (decrease) in temperature. Battery type 12V 24V float volts (V DC) boost volts (V DC) Lead acid (6 cells) 13.6 14.1 NiCd (10 cells) 14.1 16.0 Lead acid (12 cells) 27.2 28.2 NiCd (18 cells) 25.38 28.8 NiCd (20 cells) 28.2 32.0 X W 2 x fixing slots, 6mm EG150, EG300 series D1 D2 EG600 series Overall:- W 275mm / 10.83 335mm / 13.19 H1 280mm / 11.02 310mm / 12.20 H2 75mm / 2.95 85mm / 3.35 H3 90mm / 3.54 100mm / 3.94 D1 125mm / 4.92 145mm / 5.71 D2 190mm / 7.48 210mm / 8.27 Fixing holes:- X 172mm / 6.77 223mm / 8.78 Y 255mm / 10.04 285mm / 11.22 Weight 10.0 Kg / 22.0 lb 17.5 Kg / 38.5 lb H3 How to order When ordering, please specify:- Guardian is also available in an open-frame version see separate datasheet for details. Computronic Controls Ltd. 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom tel: +44 121 327 8500 fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Enclosed Guardian datasheet cd0002 issue 3 5 th November 2007 p2/2

Monitor Range of Automatic Battery Chargers Heavy duty float charging: 9 or 15A @ 24V - 16 or 30A @ 12V Simple, low cost design Lead Acid or Ni-Cd calibrations Optional boost mode Optional charge fail relay output Description The Monitor range provides fully automatic, heavy duty, thyristor controlled, charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger uses an open frame construction, designed for surface mounting in an enclosed panel. Each unit consists of a transformer, rectifier and control circuit. The control circuit ensures that charger maintains the battery voltage at the precalibrated float level, while supplying any additional load current up to the specified maximum. Boost option A 'boost' mode of operation provides increased voltage output. Selection of the boost mode is via three terminals, allowing activation by a time delay relay or switch. Calibration table over leaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output is available. The volt free relay de-energises in the event of a charging fault or loss of AC input. The AC supply connections feature multiple transformer tappings to allow exact matching of the supply voltage: 240V units allow connection of 220V, 240V, 250V or 277VAC systems; 110V units allow connection of 110V, 120V, 125V and 135VAC systems. Connection of the AC supply, DC output, charge fail relay and float / boost selector slink are via spring clamp connections. Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Ouput: 110/120/125/135 VAC(110V Units) 220/240/250/277 VAC (240V Units) ± 6% of nominal 50/60Hz maximum current ADC 15 30 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity see table overleaf volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C see table overleaf see table overleaf EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth Dimensions (mm) 4 x fixing holes, 5mm *Note: the monitor range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented chargers see the switch mode range. If in doubt, contact our technical departement. M200 All models (mm) M360 All models (mm) 140 A 160 140 B 185 D 135 E 175 F A B C D E F Weight 123 125 144 170 118 160 4.5Kg 140 140 160 185 135 175 7.8Kg How to order When ordering, please specify:- PRODUCT M200249 M3602415 M2001216 M3601230 Output VDC 12 24 CODE C D LA 10 18 20 Output Current 9 15 16 30 INPUT VOLTAGE 110VAC 240VAC Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad CF MB 20 Cell Ni Cad Charge Fail OPTIONS Manual Boost Product Input volts Battery type The above 3 part number codes must be filled in to complete your order - Options M3601230 D LA CF Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a 240VAC input, 12V@30A, DC output charger, calibrated for a vented lead acid battery, and with the charge fail option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: Mon-OF Issue1 July 03

Enclosed Monitor Range of Automatic Battery Chargers Heavy duty float charging: 9A, 15A or 30A @ 24V - 16A, 30A or 60A @ 12V DC ammeter Lead Acid or Ni-Cd calibrations Optional boost mode Optional charge fail relay output Wall or floor mounted metal enclosure Description The enclosed Monitor range provides fully automatic, heavy duty, thyristor controlled, charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps, generators and cyclic battery charging. The control circuit ensures that charger maintains the battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. The charger is housed in a vented metal enclosure and can be wall mounted or free standing. The chargers can be equipped with charge fail and boost options. Enclosures are fitted with an ammeter, MCB, charge fail LED and charging LED. Boost option A 'boost' mode of operation provides increased voltage output. Selection of the boost mode is via three terminals, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output can be provided. The volt free relay de-energises in the event of a charging fault or loss of AC input. Product Specification Power Supply: nominal operating voltages permissible voltage variation nominal operating frequency DC Charge Ouput: 110/120/125/135 VAC(110V Units) 220/240/250/270 VAC (240V Units) ± 6% of nominal 50/60Hz maximum current ADC 15 30 nominal voltage VDC 24 12 float / boost voltages Charge Fail Output: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity see table over leaf volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C see table over leaf see table over leaf EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type* float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth Dimensions *Note: the monitor range is designed for use with vented batteries only. These chargers are NOT suitable for valve regulated lead acid (VRLA) or sealed type cells. For charging non vented chargers see the switch mode range. If in doubt, contact our technical departement. Depth (mm) Width (mm) Height (mm) Weight Height EM200 260 260 220 7Kg EM360 (10.2 ) 260 (10.2 ) 260 (8.7 ) 220 (15.54lbs) 9Kg Width Depth Wall mounting dimensions:2 holes (Ø=8mm) at 33mm in from side edges of unit, 33mm down from top edge, and 2 holes (Ø=8mm) at 33mm in from side edges of unit, 50mm up from bottom edge. EM720 (10.2 ) 365 (14.2 ) (10.2 ) 455 (18 ) (8.7 ) 210 (8.3 ) (19.98lbs) 18Kg (39.96lbs) How to order When ordering, please specify:- PRODUCT EM200249 EM3602415 EM2001216 EM3601230 EM7202430 EM7201260 CODE C D Output VDC 12 24 LA 10 18 20 Output Current 9 15 16 30 60 INPUT VOLTAGE 110VAC 230VAC Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad CF MB 20 Cell Ni Cad Charge Fail OPTIONS Manual Boost Product Input volts Battery type The above part number codes must be filled in to complete your order Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com - Options Options Insert options when required, if no options are required, leave empty EM200249 D LA CF MB The above example shows the order code for an enclosed 240VAC input, 24V@9A,DC charger, calibrated for a vented lead acid battery, and with the charge fail and manual boost options. CCL - Datasheet Reference: EM Issue1 July 03

Linear Equipment Range of Automatic Battery Chargers Float Charging 1A @ 6V or 12V - 600mA @ 24V VRLA or vented lead acid (shown in protective cover) Low Ripple Description The Linear Equipment Charger is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications when used in it s manual boost mode. Due to its very smooth output (< 1% ripple) the charger is suitable for VRLA or vented lead acid batteries. The charger has a jumper switchable between two modes of operation, auto 3 stage (jumper off) and manual boost mode (jumper on) as outlined below - Auto 3 Stage Operation The output current of the charger is limited to a low value until the battery reaches a specific voltage, preventing high charge current if a cell is shorted. Above this level the bulk charge phase starts supplying maximum current to the battery. This is indicated by the yellow bulk LED. This continues until the bulk voltage is reached when the current will start to fall. When it has fallen to 10% of the maximum bulk current the float phase will begin, indicated by the green float LED. Manual Boost Operation The charger will give a constant current output up to its knee point (13V on a 12V LA) at which point the current will ramp down as the battery reaches it's float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the precalibrated float level, whilst supplying any additional standing load current up to a specified maximum. The battery charger is designed so that it can be permanently connected to the battery. Charging current vs voltage (shown as open frame unit) Auto 3 stage operation Optional boost mode Optional protective cover Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 110-120V AC (115V units) 205-254V AC (230V units) 50-60Hz output current ADC 1 1 0.6 nominal voltage VDC 6 12 24 line regulation < 1% load regulation < 1% output ripple < 1% float / bulk voltages see table overleaf General: operating temperature overall dimensions (w x h x d) 0 to +40 C see overleaf weight EMC emission / immunity 1.28Kg in cover (2.8lbs) 0.9Kg open frame (1.98lbs) EN 58801-2 / EN50082-2 The 'boost' mode of operation provides increased voltage output. Selection of boost mode is by connecting between the Negative output and Boost (Bst) terminals. Table over leaf shows details of float and boost voltages. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) 6V Lead Acid (6 cells) 6.8 7.5 12V Lead Acid (12 Cells) 13.6 15.0 24V Lead Acid (24 Cells) 27.2 30.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 61mm *40mm Width (mm) Height (mm) Depth (mm) 85mm 108mm Open Frame All Models 61 135* 67 With Cover 67mm 95mm 115mm *128mm All Models 85 125 N.B. *The open frame model has an extended back plate which has 4 mounting holes for easy installation whilst the Protective cover is fitted with DIN clips. 95 How to order When ordering, please specify:- PRODUCT LER61 LER121 LER24600 Output VDC 6 12 24 Output Current 1 600mA MB PC OPTIONS Protective Manual Boost Cover CODE C D INPUT VOLTAGE 115VAC 230VAC BATTERY TYPE LA VRLA Lead Acid VRLA Product Input volts Battery type The above 3 part number codes must be filled in to complete your order LER121 C VRLA The above example shows the order code for 115VAC input, 12V@1A,DC output charger calibrated for a VRLA battery and with manual boost option. If no manual boost is indicated, auto 3 stage mode will be fitted as standard. NB. It is not possible to have auto 3 stage and manual boost on the same unit. - Options Options Insert options when required, if no options are required, leave empty MB Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: LER Issue1 July 03

CVR12 & CVR24 DC Voltage Monitoring Units Battery under voltage relay Battery over voltage relay Delay on under voltage 11 Pin relay format Monitors its own supply Description BATTERY / DC VOLTAGE MONITORING UNITS 11 PIN PLUG-IN TYPE These units have been configured to monitor the voltage of their own DC supply. They are particularly suited to applications where an auxiliary supply is either unavailable or undesirable. For instance, when monitoring the float voltage of a standby battery system. The trip levels are factory set at the customer specified levels. Each unit contains 2 single pole change-over relays, one for under voltage and one for over voltage. The under voltage relay can be delayed for 0-300 seconds, and de-energises on fault. The over voltage relay has no delay and energises on fault. Under Voltage If the voltage falls below the low voltage set point, the override delay timer is activated. Failure of the voltage to rise above the set point for the duration of the timer will cause the under voltage relay to de-energise indicating a fault. The relay will remain de-energised until the voltage rises above the set point. Over Voltage If the voltage rises above the high voltage set point, the high voltage relay will energise. The relay will remain energised until the voltage drops below the high voltage set point. Product Specification Power Supply: nominal operating voltages loss of control & time delay Relays: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity Warranty 9-32VDC 4VDC on 12VDC system 8VDC on 24VDC system 2 x volt free SPDT contacts over relay - energised on fault under relay - de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 50 x 50 x 41mm (1.96 x 1.96 x 1.6 ) 0.1Kg (0.2lbs) EN 58801-2 / EN50082-2 A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Low Alarm High Alarm The contacts are shown in an off the shelf (or de-energised) condition. The Negative and Positive contacts (2 and 10) are for either supply or sensing operation. Negative Dimensions Positive Please note volt free relays are rated at 1 amp @ 30VDC or 120VAC. BOTTOM VIEW SIDE VIEW 50mm 50mm 41mm How to order When ordering, please specify:- PRODUCT CVR12 CVR24 Input VDC 12 24 CODE U* U* UNDER VOLTAGE TRIP POINT RANGE 12V 24V 9-16V 18-32V OVER VOLTAGE TRIP POINT RANGE 12V 24V CODE 9-16V 18-32V O* O* CODE S* UNDER VOLTAGE TIME DELAY IN SECONDS 0-300 Seconds * Please specify Product Under volts Over volts Time Delay * = Items marked with a * must be specified to enable us to complete your order. CVR12 U11.5 O14.5 S120 The above example shows the order code for a 12VDC input relay, with under volts set at 11.5VDC and over volts set at 14.5VDC, and a time delay on under voltage of 120 seconds. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: CVR Issue1 July 03

LVD12 & LVD24 DC Voltage Monitoring Units Battery under voltage relay Delay on battery disconnect voltage 11 Pin relay format Monitors its own supply Description BATTERY / DC VOLTAGE MONITORING UNITS 11 PIN PLUG-IN TYPE These units have been configured to monitor the voltage of their own DC supply. They are particularly suited to applications where a load is applied to the battery, with no charge present, i.e. battery back up system, where the battery is supplying the load in the event of a mains failure. To prevent irreversible damage to the batteries this unit will give a signal to disconnect the batteries at a safe set point. The trip level is factory set at the customer specified levels. Each unit contains a single pole change-over relay for battery disconnect voltage which can be delayed for 0-300 seconds and de-energises on low volts. Battery Disconnect Voltage If the voltage falls below the low voltage set point, the override delay timer is activated. Failure of the voltage to rise above the set point for the duration of the timer, will cause the relay to de-energise. The relay will remain de-energised until the voltage rises above the set point value, plus an additional 2 volts; i.e. if set point is 10VDC, relay will re-energise at 12VDC thereby preventing the battery being reconnected below a safe operating level. Product Specification Power Supply: nominal operating voltages loss of control & time delay Relays: relay type contact rating General: operating temperature overall dimensions weight EMC emission / immunity Warranty 9-32VDC 4VDC on 12VDC system 8VDC on 24VDC system volt free SPDT contacts relay energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 50 x 50 x 41mm (1.96 x 1.96 x 1.6 ) 0.1Kg (0.2lbs) EN 58801-2 / EN50082-2 A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Low Alarm The contacts are shown in an off the shelf (or de-energised) condition. The Negative and Positive contacts (2 and 10) are for either supply or sensing operation. Negative Dimensions Positive Please note volt free relays are rated at 1 amp @ 30VDC or 120VAC. BOTTOM VIEW SIDE VIEW 50mm 50mm 41mm How to order When ordering, please specify:- PRODUCT LVD12 LVD24 Input VDC 12 24 CODE U* U* UNDER VOLTAGE TRIP POINT RANGE 12V 24V 9-16V 18-32V CODE S* UNDER VOLTAGE TIME DELAY IN SECONDS 0-300 Seconds * Please specify Product Under volts Time Delay * = Items marked with a * must be specified to enable us to complete your order. LVD12 U11.5 S120 The above example shows the order code for a 12VDC input relay, with battery disconnect voltage set at 11.5VDC, and a time delay of 120 seconds. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: LVD Issue1 July 03

Keystart 7210 & 9610 series Engine and Generator Controls Manual start/stop Keyswitch operation Timed preheat Automatic fault shutdowns Overspeed shutdown, magnetic pickup or generator AC driven Description The Keystart 7210 and 9610 series provides manual start/stop and automatic fault protection for generators, pumps and other engine-driven applications. The units are available in two sizes: the 7210 series uses a DIN 72mm case (for 68 x 68mm panel cut-outs); 9610 series units have a DIN 96mm case (for 92 x 92 mm cut-outs). Operator control is via a 3 position keyswitch on the front facia - see overleaf for operation details. The key is common to all Keystarts and removable only in the Stop/Reset (O) position. Outputs are provided for the control of engine fuel (energised to run), starter motor and preheat. The Keystart also has an alarm output for fault warnings. The front facia has six LED and pictograms for indication of engine status and faults - details overleaf. Fault shutdown switch inputs (closed to negative on fault) are provided for engine low oil pressure, high engine temperature and auxiliary/plant fail. Models 7211 and 9611 have a fully adjustable engine overspeed shutdown, driven by generator AC or magnetic pickup. Charge alternator excitation and a charge fail warning LED are fitted as standard. Electrical connection is by spring-clamp terminal blocks at the rear. The Keystart has a universal 7 to 30VDC power supply, allowing operation with 12 or 24VDC engine batteries. Engine cranking brown-out protection is fitted as standard. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available on request. 72mm or 96mm DIN case Product specifications power supply: operating voltage: steady state brown out / cranking current consumption inputs: fault switch inputs: ve input defined as: speed sensing inputs:- generator AC mag pickup/transducer outputs: run, preheat start (crank) alarm (fault) calibration/tacho adjustable settings: preheat timer fault override timer overspeed trip level general: overall dimensions (w x h x d) panel cut-out size weight operating ambient temperature 7 30 VDC 5 VDC < 100mA close to negative DC during fault 1V to +1V w.r.t. ve DC supply 70 270 VAC rms, < 50 to > 60 Hz., default setting: 50Hz 10 60 VAC peak, < 2000 to > 6500 Hz., default setting: 3000Hz (all ratings non-reactive) positive DC, switched NO relay contact, 7210 series: 1 A max. @ 24V DC 9610 series: 16 A max @ 24V DC positive DC via keyswitch contacts, 16 A max. @ 24V DC negative DC (open collector NPN transistor), 100mA max. to suit 0 1 ma, 75 Ohm meter output = 0.75mA at rated engine speed 0 to 20 secs, default setting 0 secs 2 to 20 secs, default setting 10 secs 100 to 130 % of calibrated speed, default setting 110% 72 x 72 x 100 mm (7210 series) 96 x 96 x 131 mm (9610 series) DIN 68 x 68 mm (7210 series) DIN 92 x 92 mm (9610 series) 240 g 10 C to +55 C

Front facia and operation LED indication:- preheat on - amber run (fuel on) - green low oil pressure fault shutdown - red high engine temperature fault shutdown - red overspeed/plant fail 2 fault shutdown - red charge fail warning - red plant fail 1 shutdown - red 3 position keyswitch: Off/Reset. Removes power, stops the engine and resets any latched shutdown fault. Run. Activates the timed Preheat output (if enabled), followed by activation of the Fuel relay. The fault 'override' timer begins as soon as the Run relay activates. Once the engine is fully running, Keystart monitors for faults and shuts down the engine if a fault is detected. Start/crank. Maintains the FUEL output, and activates the START output. Shutdown fault inputs are disabled and the fault override timer is reset. This position spring-returns to I (Run) on release. Rear facia, connection and settings VR4 VR5 721x series VR3 VR1 VR2 J1 Alarm output: ve DC Fuel output: +ve DC Preheat output: +ve DC Start (crank) output: +ve DC +ve DC power supply ve DC power supply/pickup Plant fail 1 input Oil pressure fault input DANGER HIGH VOLTAGE 9 10 11 12 13 14 15 961x series Engine temp fault input Charge fail (WL) Tacho/calibration output +ve Tacho/calibration output ve L N Gen. AC (7211/9611 only) VR1 VR2 VR5 VR3 VR4 70-270 VAC, 50/60Hz Plant fail 2 input (7210/9610) or Mag. pickup input (7211/9611) 16 Aux (run) input: +ve DC (961x only) How to order Stock code Description KS7210 72mm Keystart, no overspeed KS7211 72mm Keystart, AC/MPU overspeed* KS9610 96mm Keystart, no overspeed KS9611 96mm Keystart, AC/MPU overspeed* * Note: stock units are set to AC sensing, nominal 50Hz. To selection magnetic pickup sensing, adjust internal circuit board link J1. Further information Document Description ks7210-9610i Keystart 7210/9610 installation instructions Typical connection + VE DC + Generator AC L N WL LOP * magnetic pickup/ speed transducer HET Emergency Stop 13 5 1 14 II start O off 10 I run 16 15 8 9 7 12 11 FUEL 2 6 4 3 RAL RST Remote Start Run Start RFL alarm fuel starter Plant Fail 1 calib/tacho meter RPH Adjustment (use a 3mm flat head screwdriver) All units:- VR1: Preheat, 0-20 secs, clockwise to increase. VR2: Fault override, 2-20 secs, clockwise to increase. Overspeed (7211/9611) units only:- VR3: Overspeed, 100-130% of VR4/5, clockwise to increase. VR4: Generator AC Speed calibration. Set link J1. Run engine. VR5: Mag. pickup Adjust pot. to give tacho output of 0.75mA. Connection:- 1 2 3 4 5 6 7 8 VE DC Notes:- * Overspeed models 7211/9611 only. Selection of generator AC or magnetic pickup speed sensing is by internal circuit board link J1. Stock units are set for generator AC sensing, 50Hz nominal. On non-overspeed models, pin 15 is 'plant fail 2' switch input, with connection as pin 7. Pin 16 (remote run input) available only on models 9610/9611. * preheat Computronic Controls Ltd 41 46 Railway Terrace Nechells, Birmingham, B7 5NG United Kingdom Tel: +44 121 327 8500 Fax: +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL Datasheet Reference: ks7210-9610d issue 2 June 2005

SM50 Switch mode Range of Automatic Battery Chargers High rate duty float charging: 3A @ 12V - 1.5A @ 24V - 0.75A @ 48V Fully automatic charge regulation Light compact design Universal input voltage 95VAC - 277VAC @ 47-400Hz Current limited Description The SM50 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and plante cells. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation and a compact low weight design. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Ouput: 95-277VAC 47-400Hz output current ADC 3 1.5 0.75 nominal voltage VDC 12 24 48 line regulation < 1% load regulation < 1% output ripple < 1% float voltages see table overleaf General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 80mm x 48mm x 95mm (3.1 x 1.9 x 3.7 ) 250g (0.55lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) 12V Lead Acid (6 cells) 13.6 24V Lead Acid (12 Cells) 27.2 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 80mm 95mm 95mm 89mm (fixing holes) 48mm Fixing holes Ø=3mm How to order When ordering, please specify:- 70mm (fixing holes) PRODUCT SM50123 SM50241.5 SM50480.75 Output VDC 12 24 48 3 1.5 CODE CD LA VRLA Output Current 0.75 INPUT VOLTAGE 95-277VAC Lead Acid BATTERY TYPE VRLA Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SM50123 CD VRLA The above example shows the order code for a 95-277VAC input, 12V@3A,DC output charger, calibrated for a VRLA battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM50-OF Issue1 July 03

SM50A Auto 3 Stage Range of Automatic Battery Chargers High rate duty float charging: 3A @ 12V - 1.5A @ 24V - 0.75A @ 48V Fully automatic charge regulation Light compact design Universal input voltage 95VAC - 277VAC @ 47-400Hz Current Limited Auto 3 stage charging Description The SM50 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Lead Acid sealed (VRLA), Auto 3 Stage Operation The output current of the charger is limited to a low value until the battery reaches a specific voltage, preventing high charge current if a cell is shorted. Above this level the bulk charge phase starts supplying maximum current to the battery. This is indicated by the yellow bulk LED. This continues until the bulk voltage is reached when the current will start to fall. When it has fallen to 10% of the maximum bullk current the float phase will begin, indicated by the green float LED. Operation Overview The battery charger is designed so that it can be permantly switched on when connected to the battery provided there are no standing loads present. (If a standing load is required please contact our technical department if this facility is required) Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Ouput: 95-277VAC 47-400Hz output current ADC 3 1.5 0.75 nominal voltage VDC 12 24 48 line regulation < 1% load regulation < 1% output ripple < 1% float / bulk voltages see table overleaf General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 80mm x 48mm x 95mm (3.1 x 1.9 x 3.7 ) 250g (0.55lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) bulk volts (VDC) 12V Lead Acid (6 cells) 13.6 14.1 24V Lead Acid (12 Cells) 27.2 30.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 80mm 95mm 95mm 89mm (fixing holes) 48mm Fixing holes Ø=3mm 70mm (fixing holes) How to order When ordering, please specify:- PRODUCT SM50A123 SM50A241.5 SM50A480.75 Output VDC 12 24 48 3 1.5 CODE CD LA VRLA Output Current 0.75 INPUT VOLTAGE 95-277VAC Lead Acid BATTERY TYPE VRLA Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SM50A123 CD VRLA The above example shows the order code for a 95-277V,AC input, 12V@3A,DC output auto 3 stage charger, calibrated for a VRLA battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM50A-OF Issue1 July 03

SM82 Switch mode Range of Automatic Battery Chargers High rate duty float charging: 5A @ 12VDC - 3A or 5A @ 24VDC output Fully automatic charge regulation Light compact DIN rail mount design Optional boost mode Description The SM82 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and plante cells. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminals, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output can be provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via shrouded screw terminals. Optional charge fail relay output Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-135VAC 195-277VAC 47-400Hz output current ADC 5 5 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 133mm x 130mm x 80mm (5.2 x 5.1 x 3.2 ) 0.56Kg (1.24lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration AC supply F1, fuse type T, rating: 2 Amp (220-270 VAC) 4 Amp (110-135 VAC) F1 boost charge fail option Fault mode state shown NO C NC + boost + battery Battery type Lead Acid (6 cells) 12V Ni-Cd (10 cells) Lead Acid (12 Cells) 24V Ni-Cd (18 Cells) Ni-Cd (20 Cells) float volts (VDC) 13.6 14.1 27.2 25.38 28.2 boost volts (VDC) 14.1 16.0 28.2 28.8 32.0 Boost switch/timer Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 130mm 130mm 75mm (inc. 20mm DIN clip) 135mm 60mm 33mm How to order When ordering, please specify:- PRODUCT SM82125 SM82245 SM82243 SM82362 SM82481.25 Output VDC 12 24 36 48 5 3 2 CODE E F INPUT VOLTAGE 95-135VAC 195-277VAC LA 10 18 20 Output Current 1.25 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad CF MB S PC 20 Cell Ni Cad Charge Fail Manual Boost OPTIONS Spade Connect Protective Cover Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SM82125 F LA Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com - Options CF Options Options Options Insert options when required, if no options are required, leave empty The above example shows the order code for a 195-277VAC input, 12V@5A DC output charger calibrated for a vented lead acid battery, and with charge fail and protective cover options. *DIN Rail Clips are provided as standard when ordering the SM82 range of battery chargers in a protective cover. CCL - Datasheet Reference: SM82 Issue1 July 03 PC

SM82 Switch mode Range of Automatic Battery Chargers High rate duty float charging: 5A @ 12VDC - 3A or 5A @ 24VDC output Fully automatic charge regulation Light compact DIN rail mount design Optional boost mode Description The SM82 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and plante cells. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminals, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output can be provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via shrouded screw terminals. Optional charge fail relay output Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Ouput: 95-135VAC 195-277VAC 47-400Hz output current ADC 5 5 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 133mm x 130mm x 80mm (5.2 x 5.1 x 3.2 ) 0.56Kg (1.24lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration AC supply F1, fuse type T, rating: 2 Amp (220-270 VAC) 4 Amp (110-135 VAC) F1 boost charge fail option Fault mode state shown NO C NC + boost + battery Battery type Lead Acid (6 cells) 12V Ni-Cd (10 cells) Lead Acid (12 Cells) 24V Ni-Cd (18 Cells) Ni-Cd (20 Cells) float volts (VDC) 13.6 14.1 27.2 25.38 28.2 boost volts (VDC) 14.1 16.0 28.2 28.8 32.0 Boost switch/timer Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 140mm 134mm 60mm 85mm (inc. 20mm DIN clip) 140mm 33mm How to order When ordering, please specify:- PRODUCT SM82125 SM82245 SM82243 SM82362 SM82481.25 Output VDC Output Current 1.25 12 24 36 48 5 3 2 CODE E F INPUT VOLTAGE 95-135VAC 195-277VAC LA 10 18 20 Lead Acid BATTERY TYPE 18 Cell Ni Cad 10 Cell Ni Cad CF MB S PC 20 Cell Ni Cad Charge Fail Manual Boost OPTIONS Spade Connect Protective Cover Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SM82125 F LA The above example shows the order code for a 195-277VAC input, 12V@5A DC output charger calibrated for a vented lead acid battery, and with charge fail and protective cover options. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com - Options Options Options Options Insert options when required, if no options are required, leave empty *DIN Rail Clips are provided as standard when ordering the SM82 range of battery chargers in a protective cover. CCL - Datasheet Reference: SM82~PC Issue1 July 03 CF PC

Enclosed SM82 Range of Automatic Battery Chargers High rate duty float charging: 5A @ 12VDC - 3A or 5A @ 24VDC output Fully automatic charge regulation Stainless steel enclosure with ammeter indication Optional boost mode Description The SM82 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead Acid sealed (VRLA), vented and plante cells. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminals, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail option A self diagnostic 'charge fail' circuit and relay output can be provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via spring clamp connection. Optional charge fail relay output Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-135VAC 195-277VAC 47-400Hz output current ADC 5 5 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 140mm x 270mm x 115mm (5.5 x 10.6 x 4.5 ) 0.80Kg (1.7lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 140mm 270mm 270mm 255mm 115mm Fixing holes Ø=8mm where shown. How to order When ordering, please specify:- 66mm PRODUCT ESM82125 ESM82245 ESM82243 ESM82362 ESM82481.25 Output VDC Output Current 1.25 12 24 36 48 5 3 2 CODE E F INPUT VOLTAGE 95-135VAC 195-277VAC LA 10 18 20 Lead Acid BATTERY TYPE 18 Cell Ni Cad 10 Cell Ni Cad 20 Cell Ni Cad Charge Fail OPTIONS Manual Boost CF MB Product Input volts Battery type The above 3 part number codes must be filled in to complete your order ESM82125 F LA - Options Options Options Options Insert options when required, if no options are required, leave empty The above example shows the order code for a wall mounted enclosure, 195-277VAC input, 12V@5A DC output charger calibrated for a vented lead acid battery, and with charge fail. CF Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESM82 Issue1 July 03

SM135 12/24 Automatic Battery Chargers High rate duty float charging: 4.5A at 12VDC or 24VDC Fully automatic charge regulation Light compact DIN rail mount design Boost mode Charge fail relay output Description The SM135 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment The SM135 charger is capable of being set up to provide 4 different charge voltage settings (2 nominal 12VDC and 2 nominal 24VDC) each with an adjustable boost setting. Boost is set by 4 voltage pots. The output voltage is set via a jumper placed across the appropriate pin header. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). Charging current vs voltage Boost mode A 'boost' mode of operation provides increased voltage output. Selection of boost mode is by shorting the Bst terminal to ground (- Neg output) Charge fail By connecting between C/F and - (neg) a charge fail indication can be sensed. Output Inhibit The output inhibit value (adjustable via R42) shuts the charger off should the battery voltage be below the set value (normally 62% of nominal battery voltage) Battery detection alarm Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: Warranty 95-277VAC 47-440Hz output current ADC 4.5 nominal voltage VDC 13-32V (fully adjustable) line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 165mm x 55mm x 155mm (6.5 x 2.2 x 6.45 ) 0.5Kg (1.1lbs) EN 58801-2 / EN50082-2 A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type Lead Acid (6 cells) 12V Ni-Cd (10 cells) Lead Acid (12 Cells) 24V Ni-Cd (20 Cells) float volts (VDC) 13.7 14.2 27.2 28.4 boost volts (VDC) 14.5 14.7 28.2 29.4 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW 165mm SIDE VIEW 155mm PLAN VIEW 55mm 155mm 20mm (DIN clip) How to order When ordering, please specify:- PRODUCT SM1351224 Output VDC 12/24 CODE CD Output Current 4.5 INPUT VOLTAGE 95-277VAC 12VLA 12VNI 24VLA 24VNI FLOAT VOLTAGE SETTINGS (if different from std) 24V Setting L/A 24-32VDC 12V Setting 12V Setting Ni- L/A Cd 13-16VDC 24V Setting Ni- Cd Product SM1351224 Input volts The above 2 gpart number codes must be filled in to complete your order /CD - Float voltage settings Insert settings and options when required, if no options are required, leave empty. 12VLA The above example shows the order code for a 95-277V,AC input, 12V@4.5A,DC output charger, calibrated for a lead acid battery. DIN Rail Clips are provided as standard. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM135 Issue1 July 03

SM2 160 Range of Automatic Battery Chargers High rate duty float charging: 12A @ 12V - 6A @ 24V output Fully automatic charge regulation Light compact DIN rail mount design Charge fail relay output Description The SM2 160 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid sealed and vented, Plante and VRLA cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives the optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminations, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via shrouded screw terminals. Optional boost mode Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 6 12 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 100mm x 50mm x 160mm (3.9 x 2 x 6.3 ) 0.65Kg (1.44lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 77mm 50mm 160mm 107mm Rear of back plate with terminal blocks at at bottom bottom 143mm 100mm 160mm 89mm DIN Rail Mounting Clips add 20mm to the overall height of the chargers. Fixing holes Ø = 3mm How to order When ordering, please specify:- PRODUCT SM21601212 SM2160245 Output VDC Output Current 12 24 12 6 CODE CD INPUT VOLTAGE 95-277VAC S MB DIN Spade Connections OPTIONS Manual Boost DIN Rail Mouting LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. SM21601212 CD LA - Options Options Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a 95-277V,AC input, 12V@12A,DC output charger, calibrated for a vented lead acid battery, and with manual boost and DIN rail mounting option. MB DIN Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM160-OF Issue1 July 03

Enclosed SM2 160 Range of Automatic Battery Chargers High rate duty float charging: 12A @ 12V - 6A @ 24V output Fully automatic charge regulation Stainless steel enclosure with ammeter indication Charge fail relay output Description The SM2 160 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid, sealed and vented, and Plante cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives the optimum charge time to ensure that the battery voltage is maintained at the precalibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminations, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via spring clamp terminals. Optional boost mode Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 6 12 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 140mm x 270mm x 115mm (5.5 x 10.6 x 4.5 ) 0.8Kg (1.7lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 140mm 270mm 270mm 255mm 115mm Fixing holes Ø=8mm where shown. How to order When ordering, please specify:- 66mm PRODUCT ESM21601212 ESM2160245 Output VDC Output Current 12 24 12 6 CODE CD INPUT VOLTAGE 95-277VAC LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad MB OPTION Manual Boost Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. ESM21601212 CD LA - Options Insert options when required, if no options are required, leave empty. The above example shows the order code for an enclosed 95-277V,AC input, 12V@12A,DC output charger, calibrated for a vented lead acid battery, and with manual boost option. MB Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESM2160 Issue1 July 03

SM2 250 Range of Automatic Battery Chargers (shown in protective cover) (shown as open frame unit) Description The SM2 250 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid sealed and vented, Plante and VRLA cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives the optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminations, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via shrouded screw terminals. High rate duty float charging: 17A @ 12V - 9A @ 24V - 6A @ 36V4.5A @ 48V Fully automatic charge regulation Light compact DIN rail mount design Charge fail relay output Optional boost mode Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 9 17 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 100mm x 50mm x 220mm (3.9 x 2 x 8.6 ) 0.65Kg (1.44lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 88mm 50mm 220mm 145mm Rear of back plate with terminal blocks at at bottom bottom 195mm 100mm 220mm DIN Rail Mounting Clips add 20mm to the overall height of the chargers. Fixing holes Ø = 3mm How to order When ordering, please specify:- PRODUCT SM22501217 SM2250249 SM2250366 SM2250484.5 Output VDC 12 24 36 48 17 9 6 4.5 CODE CD Output Current INPUT VOLTAGE 95-277VAC S MB OI DIN PC Spade Connections Manual Boost OPTIONS Output Inhibit DIN Rail Mouting Protective Cover LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. - Options SM22501217 CD LA MB Options Options Options Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a 95-277VAC input, 12V@17A,DC output charger, calibrated for a vented lead acid battery, and with manual boost and DIN rail mounting option. DIN Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM2250 Issue1 July 03

SM2 250A Auto 3 Stage Range of Automatic Battery Chargers (shown in protective cover) High rate duty float charging: 17A @ 12V - 9A @ 24V - 6A @ 36V4.5A @ 48V Fully automatic charge regulation Light compact DIN rail mount design Charge fail relay output Auto 3 stage charging (shown as open frame unit) Description The SM2 250 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid sealed and vented, Plante and VRLA cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Auto 3 Stage Operation The output current of the charger is limited to a low value until the battery reaches a specific voltage, preventing high charge current if a cell is shorted. Above this level the bulk charge phase starts supplying maximum current to the battery. This is indicated by the yellow bulk LED. This continues until the bulk voltage is reached when the current will start to fall. When it has fallen to 10% of the maximum bullk current the float phase will begin, indicated by the green float LED. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via shrouded screw terminals. Operation Overview The battery charger is designed so that it can be permanently switched on when connected to the battery provided there are no standing loads present. (If a standing load is required please contact our technical department if this facility is required) Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 9 17 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 100mm x 50mm x 220mm (3.9 x 2 x 8.6 ) 0.65Kg (1.44lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) 12V Lead Acid (6 cells) Ni-Cd (10 cells) 13.6 14.1 14.1 16.0 NO C NC Lead Acid (12 Cells) 27.2 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 88mm 50mm 220mm 145mm Rear of back plate with terminal terminal blocks blocks at bottom at bottom 195mm 100mm 220mm DIN Rail Mounting Clips add 20mm to the overall height of the chargers. Fixing holes Ø = 3mm How to order When ordering, please specify:- PRODUCT SM2250A1217 SM2250A249 SM2250A366 SM2250A484.5 Output VDC Output Current 12 24 36 48 17 9 6 4.5 S OI DIN PC Spade Connections Output Inhibit OPTIONS DIN Rail Mouting Protective Cover CODE CD INPUT VOLTAGE 95-277VAC LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. SM2250A1217 CD LA - Options Options Options Options Insert options when required, if no options are required, leave empty. The above example shows the order code for a 95-277VAC input, 12V@17A,DC output auto 3 stage charger, calibrated for a vented lead acid battery, and with DIN rail mounting option. DIN Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SM2250A Issue1 July 03

Enclosed SM2 250 Range of Automatic Battery Chargers High rate duty float charging: 17A @ 12V - 9A @ 24V - 6A @ 36V - 4.5A @ 48V Fully automatic charge regulation Stainless steel enclosure with ammeter indication Charge fail relay output Description The SM2 250 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid, sealed and vented, and Plante cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives the optimum charge time to ensure that the battery voltage is maintained at the precalibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is via two terminations, allowing activation by a time delay relay or switch. A calibration table overleaf shows details of float and boost voltages. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC supply, DC output and charge fail relay are via spring clamp terminals. Optional boost mode Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 9 17 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C 140mm x 270mm x 115mm (5.5 x 10.6 x 4.5 ) 0.8Kg (1.7lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) boost volts (VDC) NO C NC 12V Lead Acid (6 cells) Ni-Cd (10 cells) Lead Acid (12 Cells) 13.6 14.1 27.2 14.1 16.0 28.2 24V Ni-Cd (18 Cells) 25.38 28.8 Ni-Cd (20 Cells) 28.2 32.0 Notes: 1) battery output is isolated from chassis 2) chassis must be connected to a low impedance earth The above are factory standard settings, specials are available on request. Dimensions END VIEW SIDE VIEW PLAN VIEW 140mm 270mm 270mm 255mm 115mm Fixing holes Ø=8mm where shown. How to order When ordering, please specify:- 66mm PRODUCT ESM22501217 ESM2250249 ESM2250366 ESM2250484.5 Output VDC Output Current 12 24 36 48 17 9 6 4.5 CODE CD INPUT VOLTAGE 95-277VAC LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad MB OI OPTIONS Manual Output Boost Inhibit Product Input volts Battery type The above 3 part number codes must be filled in to complete your order. ESM22501217 CD LA - Options MB Options Insert options when required, if no options are required, leave empty. The above example shows the order code for an enclosed 95-277V,AC input, 12V@17A,DC output charger, calibrated for a vented lead acid battery, and with manual boost option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESM2250 Issue1 July 03

Enclosed SM Range of Automatic Battery Chargers High rate duty float charging: 40, 50, 75 & 85A @ 12V & 20A, 30A, 40A, 50A @ 24V Fully automatic charge regulation Compact bench of floor standing enclosure Description The enclosed switch mode range are highly efficient high performance chargers. Their very smooth output is configured for accurate fast charging and optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Nickel Cadmium (NiCd), Lead acid sealed and vented, Plante and VRLA cells. The wide input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation compact low weight design and ease of panel installation via din rail. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives the optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Output protection The charger control cards are fitted with self-resetting polyswitch fuses, which prevent short circuit and reverse polarity damage to the chargers, but which will reset once the fault has been remedied thereby preventing the need for the user to replace fuses. The main DC output of the unit is also fuse protected. Boost option A 'boost' mode of operation provides increased voltage output. Selection of boost mode is va front mounted toggle switch. A calibration table overleaf shows details of float and boost voltages. Charge fail relay A self diagnostic 'charge fail' circuit and relay output is provided as standard. The volt free relay emitts and LED display in event of a charging fault or loss of AC supply. Charge fail / AC fail LED display Optional boost mode Reverse polarity / short circuit protection Ammeter & Voltmeter display Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC max 85A nominal voltage VDC max 24V line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages float @ 2.3Vpc boost @ 2.35Vpc Charge Fail Output: relay type contact rating General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) -10 to +55 C see overleaf see overleaf EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type Lead Acid (6 cells) 12V Ni-Cd (10 cells) Lead Acid (12 Cells) 24V Ni-Cd (18 Cells) Ni-Cd (20 Cells) float volts (VDC) 13.6 14.1 27.2 25.38 28.2 boost volts (VDC) 14.1 16.0 28.2 28.8 32.0 Notes: AC in and DC out are via side-entry cable glands to terminal blocks. Boost switch external. When ordered with boost facility the boost is activated by a front panel switch. WARNING: Continous charging of batteries in the boost voltage will resulting in overcharging and may permanently damage the batteries. If in doubt, contact our technical department. Dimensions Depth (mm) Width (mm) Height (mm) Weight Height Width Depth Wall mounting dimensions: 2 holes (Ø=8mm) at 33mm in from side edges of unit, 33mm down from top edge, and 2 holes (Ø=8mm) at 33mm in from side edges of unit, 50mm up from bottom edge. ESM500 EM750 & EM1000 & EM1250 260 (10.2 ) 365 (14.2 ) 260 (10.2 ) 455 (18 ) 220 (8.7 ) 210 (8.3 ) 4Kg (8.8lbs) 7Kg (15.54lbs) 12Kg (26.64lbs) How to order When ordering, please specify:- PRODUCT ESM5002420 ESM7502430 ESM5001240 ESM10002440 ESM7501250 ESM12502450 ESM10001270 ESM12501285 CODE CD Output VDC 12 24 20 30 40 50 70 85 INPUT VOLTAGE 95-277VAC Output Current MB OPTIONS Manual Boost LA 10 18 20 Lead Acid BATTERY TYPE 10 Cell 18 Cell Ni Cad Ni Cad 20 Cell Ni Cad Product Input volts Battery type The above part number codes must be filled in to complete your order ESM5001240 CD LA - Options Insert options when required, if no options are required, leave empty The above example shows the order code for an enclosed 95-277VAC input, 40A @ 24V,DC charger complete with manual boost switch option. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: ESM Issue 1 - March 2004 MB

SLA-4 Range of Automatic Battery Chargers High rate charging: 1A @ 6V or 12V - 600mA @ 24V Fully automatic charge regulation Light compact desk top design 4 stage operation Description The SLA4 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Lead Acid sealed (VRLA), vented and plante cells. 4 Stage Operation The output current of the charger is limited to a low value until the battery reaches a specific voltage, preventing high charge current if a cell is shorted. Above this level the bulk charge phase starts supplying maximum current to the battery. This is indicated by the yellow bulk LED. This continues until the bulk voltage is reached when the current will start to fall. When it has fallen to 10% of the maximum bullk current the float phase will begin, indicated by the green end LED. (see charging graph below) Charging current and voltage VRLA or vented lead acid Low ripple Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 110-120VAC (115 units) 205-254VAC (230 units) 50-60Hz output current ADC 600 1 nominal voltage VDC 24 6 or 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Output Connection and Indication: LED indication Output lead General: Float stage and Bulk stage 1.5M lead with crocodile clips Electrical Connection AC input is via a 3 core input lead and DC output connection is a fly lead terminated with colour coded crocodile clips. operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 85mm x 84mm x 67mm (3.3 x 3.3 x 2.6 ) 0.56Kg (1.24lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) bulk volts (VDC) 6V Lead Acid (3 cells) 6.8 7.25 12V Lead Acid (6 cells) 13.6 14.5 INPUT CONNECTION 2M flylead to bare wire connection. Dimensions END VIEW OUTPUT CONNECTION Colour coded crocodile clips on 1.5M flylead Black - Negative line Red - Positive line SIDE VIEW 24V Lead Acid (12 Cells) 27.2 The above are factory standard settings, specials are available on request. PLAN VIEW 27.6 85mm 84mm 85mm 67mm How to order When ordering, please specify:- PRODUCT SLA424 SLA412 SLA46 Output VDC 6 12 CODE C D Output Current 24 0.6 1 INPUT VOLTAGE 115VAC 230VAC LA VRLA BATTERY TYPE Lead Acid VRLA Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SLA412 D VRLA The above example shows the order code for a desk top charger with 230VAC input, 12V@1A,DC output 4 stage, calibrated for a VRLA battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SLA4 Issue1 July 03

SW-LA-6 Lead Acid Charger Automatic Battery Chargers 6 differant voltage outputs 2V, 4V, 6V, 8V, 10V and 12V @ 1A Fully automatic charge regulation Free standing desk top design Switchable input voltage 110-120VAC and 220-240VAC Current Limited Description The SW-LA-6 is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. The charger is designed to cater for continuous float charging and standby battery applications. Due to its very smooth output (< 1% ripple) the charger is suitable for all types of lead acid batteries. e.g. sealed (VRLA), vented and plante cells. Switch mode technology is a major advance in power supply and battery charger design. Giving low heat dissipation and a compact low weight design. Utilising the benefits of switch mode, the charger will give a constant current output up to its knee point (13 Volts on a 12 Volt LA) and then ramp down to its float voltage (see graph below). This gives an optimum charge time to ensure that the battery voltage is maintained at the pre-calibrated float level, whilst supplying any additional standing load current up to a specified maximum. Charging current vs voltage Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Ouput: 110-120VAC and 220-240VAC (switchable) 50-60Hz output current ADC 1 nominal voltage VDC 2-12V line regulation < 1% load regulation < 1% output ripple < 1% float voltages see table overleaf General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 108mm x 90mm x 180mm (4.25 x 3.5 x 7.1 ) 1.6g (3.52lbs) EN 58801-2 / EN50082-2 The SW-LA-6 provides a switchable output between 2V and 12V allowing charging of mono-block configurations and other non-standard battery voltages e.g. childrens electric vehicles, and the wide input voltage range allows for worldwide application. The free standing desk top unit comes complete with full mains and charge status indication. Connection is made simple via colour coded screw-in terminals. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Notes: Check supply voltage and set switch at rear accordingly. There are two ranges : 110-120VAC and 220-240VAC) WARNING: Applying a 220-240VAC input to a unit set in the 110-120VAC range can damage the unit. Dimensions END VIEW 105mm SIDE VIEW 180mm Calibration Switch Voltage Float Voltage Position VDC VDC 1 2 2.3V 2 4 4.6V 3 6 6.9V 4 8 9.2V 5 10 11.5V 6 12 13.8V The above are factory standard settings, specials are available on request. These chargers are suitable for all types of rechargeable lead acid. No other types of batteries should be charged. Please refer to battery manufacturer instructions for correct switch position. PLAN VIEW 90mm 140mm How to order When ordering, please specify:- PRODUCT SW-LA-6 Output VDC 2 4 6 8 10 12 Output Current 1 INPUT VOLTAGE CODE 110-120 / 220-240 EF* * The unit has a slide switch between the two voltage ranges. LA BATTERY TYPE These chargers are suitable only for Lead Acid type rechargeable batteries Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SW-LA-6 EF LA The above example shows the order code for a desk top charger,switchable between 110-120VAC and 220-240VAC input, with a switchable output between 2V and 12V@1A, calibrated for a vented lead acid battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SW-LA-6 Issue1 July 03

Desk Top Equaliser Range of Automatic Battery Chargers High rate duty float charging: 4.25A or 6A @ 12V - 3A @ 24V Fully automatic charge regulation Light compact desk top design Auto 3 stage operation Thermal overload protection Reverse polarity protection Description The Equaliser is a highly efficient high performance charger. The very smooth output is configured for accurate fast charging, optimum battery life and reliability. Due to its very smooth output (< 1% ripple) the charger is suitable for sealed or vented batteries. e.g. Lead Acid sealed (VRLA), vented and plante cells. The wide range input voltage range, from 95-277VAC allows the charger to be used with all common single phase voltages with no adjustment. Auto 3 Stage Operation The output current of the charger is limited to a low value until the battery reaches a specific voltage, preventing high charge current if a cell is shorted. Above this level the bulk charge phase starts supplying maximum current to the battery. This is indicated by the yellow bulk LED. This continues until the bulk voltage is reached when the current will start to fall. When it has fallen to 10% of the maximum bullk current the float phase will begin, indicated by the green end LED. Output Inhibit To prevent damage to batteries which have discharged below recommended voltages the charger gives a minimal charge current until a safe voltage above this point is reached where upon the charger will start applying maximum current. AC input is via a 3 core input lead and DC output connection is a fly lead terminated with colour coded crocodile clips. Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 95-277VAC 47-400Hz output current ADC 3 6 nominal voltage VDC 24 12 line regulation < 1% load regulation < 1% output ripple < 1% float / boost voltages see table overleaf Output Connection and Indication: LED indication Output lead General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity Reverse Polarity, Float stage, Bulk stage and End of Charge 1.5M lead with crocodile clips -10 to +55 C 115mm x 93mm x 115mm (4.5 x 3.6 x 4.5 ) 0.56Kg (1.24lbs) EN 58801-2 / EN50082-2 Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Battery type float volts (VDC) bulk volts (VDC) 12V Lead Acid (6 cells) 13.6 14.5 24V Lead Acid (12 Cells) 27.2 27.6 Notes: The charger will not apply maximum charge current if a battery is not connected or if the open circuit voltage of the battery is below approx. 50% nominal voltage. Dimensions END VIEW SIDE VIEW The above are factory standard settings, specials are available on request. PLAN VIEW 115mm 115mm 115mm 42mm How to order When ordering, please specify:- PRODUCT DTEQ126 DTEQ124.25 DTEQ243 Output VDC 12 24 CODE CD LA VRLA 6 Output Current 4.25 INPUT VOLTAGE 95-277VAC BATTERY TYPE Lead Acid 3 VRLA Product Input volts Battery type The above 3 part number codes must be filled in to complete your order DTEQ126 CD VRLA The above example shows the order code for a desk top charger with 95-277V,AC input, 12V@6A,DC output auto 3 stage, calibrated for a VRLA battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: DTEQ Issue1 July 03

SW5 NiCad Charger Automatic Battery Chargers 5 differant current outputs For use with AA, PP9, C, D and F cells Fully automatic charge regulation Free standing desk top design Switchable input voltage 110-120VAC and 220-240VAC Charging indication Description The SW5 is a highly efficient high performance charger with a most versatile perforrmance. Due to its very smooth output (< 1% ripple) the charger is suitable for all types of sealed nicad batteries. The charger provides a constant current output at one of 5 preset values selectable via a 5 position switch. The graphs below show expected charge conditions, the units must be disconnected once end of charge is reached to prevent batteries from overheating. Charging current vs time Charging voltage & temperature vs time Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Ouput: 110-120VAC and 220-240VAC (switchable) 50-60Hz output current ADC max 700mA nominal voltage VDC 24V line regulation < 1% load regulation < 1% output ripple < 1% charging settings see table overleaf General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 108mm x 90mm x 180mm (4.25 x 3.5 x 7.1 ) 1.6g (3.52lbs) EN 58801-2 / EN50082-2 The SW5 provides a switchable output between 70mA and 700mA allowing charging of varied NiCad packs, and the wide input voltage range allows for worldwide application. The free standing desk top unit comes complete with full mains and charging indication and connection is made simple via colour coded screw-in terminals. Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Notes: Check supply voltage and set switch at rear accordingly. There are two ranges : 110-120VAC and 220-240VAC) WARNING: Applying a 220-240VAC input to a unit set in the 110-120VAC range can damage to unit. Dimensions END VIEW SIDE VIEW Cell Maximum No. Output Type Of Cells ma AA 16 70 PP9 2 120 C 16 220 D 14 400 F 12 700 The above are factory standard settings, specials are available on request. Only specified type of batteries should be charged with this unit, charging other types of batteries may cause damge and result in serious personal injury. PLAN VIEW 105mm 180mm 90mm 140mm How to order When ordering, please specify:- PRODUCT SW5 Output ma 70 120 220 400 700 INPUT VOLTAGE CODE 110-120 / 220-240 EF* * The unit has a slide switch between the two voltage ranges. NICD Output Voltage 24 BATTERY TYPE These chargers are suitable only for NiCd type rechargeable batteries Product Input volts Battery type The above 3 part number codes must be filled in to complete your order SW5 EF NICD The above example shows the order code for a desk top charger, switchable between 110-120VAC and 220-240VAC input, with a switchable output between 70mA and 700mA @ 24V, calibrated for NiCad battery. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SW5 Issue1 July 03

SW6 NiMH/NiCd Charger Automatic Battery Chargers 6 different nominal voltages For use with 5-25 cell packs Fully automatic charge regulation Free standing desk top design Description The SW6 is a highly efficient high performance charger with a most versatile performance which utilises switchmode technology that provides low heat dissipation and a compact low weight design. Due to its very smooth output (< 1% ripple) the charger is suitable for all types of sealed NiCD and NiMH batteries. The charger provides a controlled current output whilst monitoring the cell voltage and cell temperature. The number of cells being charged is selectable via a 6 position switch (see overleaf for standard switch calibration). When the charged voltage is reached the charger switches from it s high current bulk charging mode to a low current trickle charge, full indication is provided of charging state by LED indiction. If a standing load is present and the cell voltage drops below 1.41Vpc the high rate bulk charge stage will be automatically initiated. Cell Temperature Protection The unit features a thermal protection circuit which allows monitoring of the cell temperature. If the cells rise to above 45C the charger switches to it s low current trickle charge. This gives added protection to cell life and performance by, (a) preventing full bulk current charging if batteries have been used in a high rate discharge situation, and the cell temperature had increased above the maximum charging temperature of 45C, or (b) prevent thermal runaway if a shorted cell is present which would under normal conditions mean the pack would never reach final charged voltage and the charger would continuously supply maximum bulk current. Charging current vs time Switchable input voltage 110-120VAC and 220-240VAC Charging indication Cell temperature monitoring Product Specification Power Supply: nominal operating voltages nominal operating frequency DC Charge Output: 110-120VAC and 220-240VAC (switchable) 50-60Hz output current ADC switchable 1A or 2A nominal voltage VDC nominal 5VDC - 30VDC line regulation < 1% load regulation < 1% output ripple < 1% charging settings see table overleaf General: operating temperature overall dimensions (w x h x d) weight EMC emission / immunity -10 to +55 C 108mm x 90mm x 180mm (4.25 x 3.5 x 7.1 ) 1.6g (3.52lbs) EN 58801-2 / EN50082-2 Charging voltage & temperature vs time Warranty A one year limited warranty on materials and workmanship is given with this product. Details are available upon request.

Electrical connection Calibration Notes: Check supply voltage and set switch at rear accordingly. There are two ranges : 110-120VAC and 220-240VAC) WARNING: Applying a 220-240VAC input to a unit set in the 110-120VAC range can damage to unit. Dimensions END VIEW SIDE VIEW Switch No. of Nom Float Voltage Charged Voltage Position Cells VDC VDC VDC 1 5 6 7.05 7.38 2 6 7.2 8.46 8.85 3 10 12 14.10 14.75 4 18 21.6 25.38 26.55 5 20 24 28.20 29.50 6 25 30 35.25 36.88 The above are factory standard settings, specials are available on request. Only specified type of batteries should be charged with this unit, charging other types of batteries may cause damage and result in serious personal injury. PLAN VIEW 105mm 180mm 90mm 140mm How to order When ordering, please specify:- PRODUCT SW-NI-6 Number of Cells in Pack 5 6 10 18 20 25 1 2 INPUT VOLTAGE CODE 110-120 / 220-240 EF* * The unit has a slide switch between the two voltage ranges. NI Product Input volts Battery type SW-NI-6 EF NI BATTERY TYPE Suitable only for NiCD and NiMH type rechargeables The above 3 part number codes must be filled in to complete your order Output Current (ADC) CURRENT POSITION CELL / AH Cap TIME OF CHARGE AAA (700mA) AA (2AH) 3-4 hour fast charge 3-4 hour fast charge 1 C (4AH) 5-6 hour medium charge D (8AH) F (13.5AH) C (4AH) 10 hour standard charge 10 hour standard charge 3-4 hour fast charge D (8AH) 3-4 hour fast charge 2 F (13.5AH) 5-6 hour medium charge The above example shows the order code for a desk top charger, switchable between 110-120VAC and 220-240VAC input, with a switchable output between 5 cell and 25 cell NiCD or NiMH battery pack. 18AH 20AH 10 hour standard charge 10 hour standard charge The above shows expected charging times in accordance with selected charge rate. The charge rate is switchable via a 2 position switch on the front of the unit. Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: SW6 NiMH Issue 1 Jan04

Yuasa NP Range VRLA Batteries Typical 5 year service life Suitable for use in any orientation (excluding continuous use inverted) Standard case material is flame retardent to (UL94) HBO Manufactured within ISO9002 Quality Assurance Standard Approval Description AN ENHANCED DESIGNED OF VALVE REGULATED LEAD ACID BATTERY The Yuasa NP range provide an extremely reliable and versatile valve regulated lead acid battery. Their unique construction and sealing techniques ensures that no electrolyte leakage can occur, and provides safe and effective operation in any orientation, and meets all requirements of the International Air Transport Association (I.A.T.A Dangerous Goods Regulations) to allow transportation by air. They require low maintenance i.e. there is no need to check specific gravity or add water etc. All Yuasa NP batteries conform to BS EN61056-1 and IEC1056-1 regulations. They are equipped with a safe, low pressure venting system which is designed to release excess gas and reseal automatically in the event the internal gas pressure rises to an unacceptable level, making the Yuasa NP range one of the safest valve regulated batteries available. The Yuasa NP range is typically suited for standby power applications, examples of which are: Alarm Systems Communications Equipment Control Equipment Emergancy Lighting Systems Fire & Security Systems Medical Equipment Solar Powered Systems Uninterruptible Power Supplies Product Specification Voltage Range: nominal voltages Capacity Range: nominal capacity 4V range 6V range 12V range Charging charging methods (recommended) 4V, 6V and 12V ranges 4.2Ah and 10Ah 1Ah - 12Ah 0.8 Ah - 65Ah constant voltage charging Two stage constant voltage charging recommended float charge 2.275 Volts per cell ± 0.005V (at 20 C) NOTE: High ripple current will greatly reduce the service life of a battery General: operating temperature range charge discharge storage Conforms to -15 to +50 C -20 to +60 C -20 to +50 C (fully charged condition) BS EN61056-1 / IEC1056-1

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA TOTAL AH DISCHARGE AT 20 DEG C 20Hr Capacity MINUTES HOURS 10 30 1 3 5 10 20 0.8 0.25 0.38 0.48 0.62 0.68 0.74 0.80 1.2 0.37 0.57 0.72 0.92 1.02 1.11 1.20 2 0.61 0.95 1.20 1.54 1.70 1.85 2.00 2.1 0.64 1.00 1.26 1.62 1.79 1.90 2.10 2.3 0.71 1.09 1.38 1.77 1.96 2.13 2.30 2.8 0.86 1.33 1.68 2.16 2.38 2.60 2.80 3.2 0.98 1.52 1.92 2.46 2.72 3.00 3.20 4 1.23 1.90 2.40 3.08 3.40 3.70 4.00 7 2.15 3.33 4.20 5.39 5.95 6.48 7.00 12 3.68 5.71 7.20 9.24 10.20 11.10 12.00 17 5.22 8.09 10.20 13.09 14.45 13.88 17.00 24 7.37 11.42 14.40 18.48 20.40 22.20 24.00 38 11.67 18.09 22.80 29.26 32.30 35.15 38.00 65 19.96 30.94 39.00 50.05 55.25 60.13 65.00 Table 1, above, will allow battery selection to be made for Constant Current load conditions. It should be used by mapping the required load time to the batteries 20 hour capacity rate. The figure obtained is the total AH output available for that battery in the indicated time. Example: Load condition 30A constant current Load time 30 minutes Load voltage, nominal 24V 1. Calculate total capacity required by multiplying load in hours by constant current load condition value, i.e 0.5 x 30 = 15AH 2. Using table 1, load time column for 30 minutes, locate minimum battery capacity required i.e. 38AH 3. From table 2, below, select battery model and quantity, i.e. NP38-12 times 2pcs. TABLE 2 GENERAL SPECIFICATION Voltage Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com Capacity (Ah) Model (V) (20Hr) (10Hr) L (mm) W (mm) CAUTION Follow these precautions when using and charging these batteries: Avoid short-circuit CCL - Datasheet Reference: Yuasa NP Issue 1 September 03 Do not charge in a sealed container Service life and operational characteristics will be affected by temperature AC Ripple reduces service life Dimensions Height over Terminals (mm) Weight Approx (Kg) NP0.8-12 12 0.8 0.74 96 25 61.5 0.35 NP1.2-12 12 1.2 1.11 97 48 54.5 0.58 NP2-12 12 2 1.85 150 20 89/85 0.7 NP2.1-12 12 2.1 1.9 178 34 64 0.82 NP2.3-12 12 2.3 2.13 178 34 64 0.95 NP2.8-12 12 2.8 2.6 134 67 64 1.12 NP3.2-12 12 3.2 3 134 67 64 1.2 NP4-12 12 4 3.7 90 70 106 1.75 NP7-12 12 7 6.48 151 65 97.5 2.65 NP12-12 12 12 11.1 151 98 97.5 4.05 NP17-12 12 17 13.88 181 75 167 6.1 NP24-12 12 24 22.2 166 175 125 9 NP38-12 12 38 35.15 197 165 170 14.2 NP65-12 12 65 60.13 350 166 174 23

Yuasa NPC Range VRLA Batteries Double cyclic life Suitable for use in any orientation (excluding continuous use inverted) Standard case material is flame retardant to (UL94) HBO Manufactured within ISO9000 Quality Assurance Standard Description AN ENHANCED NP DESIGN FOR CYCLIC APPLICATIONS The Yuasa NPC range provide an extremely reliable and versatile valve regulated lead acid battery. Their unique construction and sealing techniques ensures that no electrolyte leakage can occur, and provides safe and effective operation in any orientation, and meets all requirements of the International Air Transport Association (I.A.T.A Dangerous Goods Regulations) to allow transportation by air. They require low maintenance i.e. there is no need to check specific gravity or add water etc. All Yuasa NP batteries conform to BS EN61056-1 and IEC1056-1 regulations. They are equipped with a safe, low pressure venting system which is designed to release excess gas and reseal automatically in the event the internal gas pressure rises to an unacceptable level, making the Yuasa NP range one of the safest valve regulated batteries available. The Yuasa NPC range is typically suited for cyclic power applications, examples of which are: Wheelchairs Golf Trolleys Lights Communications Pumps Measuring Instruments Magnetic Lifts Product Specification Voltage Range: nominal voltages Capacity Range: nominal capacity 6V range 12V range Charging charging methods (recommended) recommended charge current recommended charge voltage 6V and 12V ranges 8Ah - 12Ah 17Ah - 65Ah constant voltage charging Two stage constant voltage charging 0.25C (Max) 2.4-2.5Vpc (at 20 C) NOTE: High ripple current will greatly reduce the service life of a battery General: operating temperature range charge discharge storage Conforms to -15 to +50 C -20 to +60 C -20 to +50 C (fully charged condition) BS EN61056-1 / IEC1056-1

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA TOTAL AH DISCHARGE AT 20 DEG C 20Hr Capacity MINUTES HOURS 10 30 1 3 5 10 20 8 2.46 3.81 4.80 6.16 6.80 7.44 8.00 12 3.68 5.71 7.20 9.24 10.20 11.16 12.00 17 5.22 8.09 10.20 13.09 14.45 15.81 17.00 24 7.37 11.42 14.40 18.48 20.40 22.32 24.00 30 9.21 14.28 18.00 23.10 25.50 27.90 30.00 38 11.67 18.09 22.80 29.26 32.30 35.34 38.00 65 19.96 30.94 39.00 50.05 55.25 60.45 65.00 Table 1, above, will allow battery selection to be made for Constant Current load conditions. It should be used by mapping the required load time to the batteries 20 hour capacity rate. The figure obtained is the total AH output available for that battery in the indicated time. Example: Load condition 30A constant current Load time 30 minutes Load voltage, nominal 24V 1. Calculate total capacity required by multiplying load in hours by constant current load condition value, i.e 0.5 x 30 = 15AH 2. Using table 1, load time column for 30 minutes, locate minimum battery capacity required i.e. 38AH 3. From table 2, below, select battery model and quantity, i.e. NPC38-12 times 2pcs. TABLE 2 GENERAL SPECIFICATION Voltage Capacity (Ah) Model (V) (20Hr) (10Hr) L (mm) W (mm) Dimensions Height over Terminals (mm) Weight Approx (Kg) NPC8-6 6 8 7.44 151 50 97.5 1.8 NPC12-6 6 12 11.16 151 50 97.5 2.05 NPC17-12 12 17 15.81 181 76 167 6.2 NPC24-12 12 24 22.32 175 166 125 8.8 NPC30-12 12 30 27.9 195 129 179 11.25 NPC38-12 12 38 35.34 197 165 170 14 NPC65-12 12 65 60.45 350 166 174 23 Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CAUTION Follow these precautions when using and charging these batteries: Avoid short-circuit Do not charge in a sealed container Service life and operational characteristics will be affected by temperature AC Ripple reduces service life CCL - Datasheet Reference: Yuasa NPC Issue 1 September 03

Yuasa NPL Range VRLA Batteries Typical 7-10 year service life Suitable for use in any orientation (excluding continuous use inverted) Standard case material is flame retardant to (UL94) HBO Manufactured within ISO9000 Quality Assurance Standard Description AN ENHANCED NP DESIGN FOR A LONGER SERVICE LIFE (7-10 YEARS) The Yuasa NPL range provide an extremely reliable and versatile valve regulated lead acid battery. Their unique construction and sealing techniques ensures that no electrolyte leakage can occur, and provides safe and effective operation in any orientation, and meets all requirements of the International Air Transport Association (I.A.T.A Dangerous Goods Regulations) to allow transportation by air. They require low maintenance i.e. there is no need to check specific gravity or add water etc. All Yuasa NP batteries conform to BS EN61056-1 and IEC1056-1 regulations. They are equipped with a safe, low pressure venting system which is designed to release excess gas and reseal automatically in the event the internal gas pressure rises to an unacceptable level, making the Yuasa NP range one of the safest valve regulated batteries available. The Yuasa NPL range is typically suited for standby power applications, examples of which are: Alarm Systems Communications Equipment Control Equipment Emergency Lighting Systems Fire & Security Systems Medical Equipment Solar Powered Systems Uninterruptible Power Supplies Product Specification Voltage Range: nominal voltages Capacity Range: nominal capacity 6V range 12V range Charging charging methods (recommended) 6V and 12V ranges 130Ah - 200Ah 24Ah - 100Ah constant voltage charging Two stage constant voltage charging recommended float charge 2.275 Volts per cell ± 0.005V (at 20 C) NOTE: High ripple current will greatly reduce the service life of a battery General: operating temperature range charge discharge storage Conforms to -15 to +50 C -20 to +60 C -20 to +50 C (fully charged condition) BS EN61056-1 / IEC1056-1

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA 20Hr Capacity MINUTES TOTAL AH DISCHARGE AT 20 DEG C HOURS 10 30 1 3 5 10 20 24 7.37 11.42 14.40 18.48 20.40 22.32 24.00 38 11.67 18.09 22.80 29.26 32.30 35.34 38.00 65 19.96 30.94 39.00 50.05 55.25 60.45 65.00 78 23.95 37.13 46.80 60.06 66.30 72.54 78.00 100 30.70 47.60 60.00 77.00 85.00 93.00 100.00 130 39.91 61.88 78.00 100.10 110.50 120.90 130.00 200 61.40 95.20 120.00 154.00 170.00 186.00 200.00 Table 1, above, will allow battery selection to be made for Constant Current load conditions. It should be used by mapping the required load time to the batteries 20 hour capacity rate. The figure obtained is the total AH output available for that battery in the indicated time. Example: Load condition 30A constant current Load time 30 minutes Load voltage, nominal 24V 1. Calculate total capacity required by multiplying load in hours by constant current load condition value, i.e 0.5 x 30 = 15AH 2. Using table 1, load time column for 30 minutes, locate minimum battery capacity required i.e. 38AH 3. From table 2, below, select battery model and quantity, i.e. NPL38-12i times 2pcs. TABLE 2 GENERAL SPECIFICATION Voltage Capacity (Ah) Model (V) (20Hr) (10Hr) L (mm) W (mm) Dimensions Height over Terminals (mm) Weight Approx (Kg) NPL130-6i 6 130 120 350 166 174 23 NPL200-6 6 200 186 398 176 250 39 NPL24-12i 12 24 22.3 166 175 125 9 NPL38-12i 12 38 35.3 197 165 170 14.2 NPL65-12i 12 65 60.5 350 166 174 23 NPL78-12i 12 78 72.6 380 166 174 27.5 NPL100-12 12 100 93 407 172 240 39 Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CAUTION Follow these precautions when using and charging these batteries: Avoid short-circuit CCL - Datasheet Reference: Yuasa NPL Issue 1 September 03 Do not charge in a sealed container Service life and operational characteristics will be affected by temperature AC Ripple reduces service life

Yuasa Endurance Range VRLA Batteries Typical 10 year service life Suitable for use in any orientation (excluding continuous use inverted) Standard case material is flame retardant to (UL94) HBO Designed, manufactured & tested to IEC896-2 and BS6290-4 Approval Description AN ENHANCED VRLA DESIGN FOR CRITICAL DC STANDBY APPLICATIONS The Yuasa Endurance range provide an extremely reliable and versatile valve regulated lead acid battery, designed to meet the requirements of high integrity applications such as Telecommunications and the Utility industry. Their unique construction and sealing techniques ensures that no electrolyte leakage can occur, and provides safe and effective operation in any orientation, and meets all requirements of the International Air Transport Association (I.A.T.A Dangerous Goods Regulations) to allow transportation by air. All Yuasa Endurance batteries have been designed and tested to ensure full compliance with BS 6920 Part 4 and are UL approved, requiring virtually no maintenance throughout the designed service life of 10 years plus. They are equipped with a safe, low pressure venting system which is designed to release excess gas and reseal automatically in the event the internal gas pressure rises to an unacceptable level. The Yuasa Endurance range is typically suited for standby applications, examples of which are: Telephone Exchanges Telecommunications Uninterruptible Power Supplies (UPS) Emergency Lighting Alarm Systems Security Systems Computers Product Specification Voltage Range: nominal voltages Capacity Range: nominal capacity 2V range 4V range 6V range Charging charging methods (recommended) 2V, 4V and 6V ranges 320Ah - 480Ah 80Ah - 160Ah 80Ah - 160Ah constant voltage charging Two stage constant voltage charging recommended float charge 2.26 Volts per cell ± 0.005V (at 20 C) NOTE: High ripple current will greatly reduce the service life of a battery General: operating temperature range charge discharge storage Conforms to -15 to +50 C -20 to +60 C -20 to +50 C (fully charged condition) BS 6290 Part 4 / IEC896-2

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA AMPS / AH AUTONOMY @ 20 DEG C END VOLTS per cell MINUTES HOURS 5 10 15 20 25 30 45 1 1.5 2 3 4 5 6 7 8 9 10 24 1.60 3.4 2.4 1.9 1.5 1.3 1.2.89.72.52.41.29.23.19.16.14.13.11.10.04 1.63 3.3 2.4 1.8 1.5 1.3 1.1.88.72.52.41.29.23.19.16.14.13.11.10.04 1.65 3.2 2.3 1.8 1.5 1.3 1.1.88.71.51.41.29.23.19.16.14.13.11.10.04 1.67 3.1 2.3 1.8 1.5 1.3 1.1.87.71.51.41.29.23.19.16.14.13.11.10.04 1.70 3.1 2.2 1.8 1.5 1.3 1.1.87.70.51.41.29.22.18.16.14.13.11.10.04 1.75 2.7 2.1 1.7 1.4 1.2 1.1.85.68.50.39.28.22.18.16.14.12.11.10.04 1.80 2.4 1.9 1.5 1.3 1.1 1.81.66.48.38.27.21.18.15.13.12.11.10.04 1.85 2 1.6 1.3 1.2 1.97.76.62.46.37.27.21.17.15.13.12.11.10.04 Table 1, above, will allow battery selection to be made for Constant Current load conditions. It should be used by mapping the required load time to the allowed end of discharge voltage End Volts. The figure obtained is the constant current output available for each 1Ah Endurance battery unit, divide this number into the required load to calculate required battery capacity. Example: Load condition 22A constant current Load time 4 hours Load voltage, nominal 48V to end voltage 40.8V 1. As lead acid batteries have a nominal single cell voltage of 2V each, divide nominal load voltage by 2 to determine the number of cells required, 48V / 2V = 24 cells. 2. Divide End voltage by the answer to 1 above, to determine End Volts per cell, 40.8V / 24 cells = 1.7Vpc 3. Using table 1, map End Volts per cell 1.7 against Load time 4 hrs to give constant current output of 0.22 4. Divide answer 0.22 into Load of 22A to give battery capacity required i.e. 100Ah 5. From table 2, below, select battery model and quantity, i.e. EN100-6 times 8pcs. TABLE 2 GENERAL SPECIFICATION Voltage Capacity (Ah) Model (V) (10Hr) L (mm) W (mm) Dimensions Height over Terminals (mm) Weight Approx (Kg) Terminals EN80-4 4 80 200 208 238 17 8mm STUD EN80-6 6 80 200 208 238 22 8mm STUD EN100-4 4 100 200 208 238 17.5 8mm STUD EN100-6 6 100 200 208 238 23 8mm STUD EN160-4 4 160 206 210 240 24 8mm STUD EN160-6 6 160 305 210 240 35 8mm STUD EN320-2 2 320 206 210 240 24 8mm STUD EN480-2 2 480 305 210 240 35 8mm STUD Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CAUTION Follow these precautions when using and charging these batteries: Avoid short-circuit CCL - Datasheet Reference: Yuasa Endurance Issue 1 September 03 Do not charge in a sealed container Service life and operational characteristics will be affected by temperature AC Ripple reduces service life

ALCAD L M H Ranges Nickel Cadmium Batteries 25+ year life in many applications Outstanding performance Operation over wide temperature (-20 C to +50 C) Long maintenance intervals Virtually unlimited storage time Description SINGLE CELL POCKET PLATE NICAD CELLS The single cell range (L/M/H) from ALCAD offer a dependable and highly responsive form of back up power. They operate faultlessly under a wide variety of climatic conditions are built to withstand mechanical and electrical abuse. All ALCAD cells comply with relevant IEC, Eurobat, DIN and BSI standards. The ALCAD single cell portfolio comprises of three ranges: L Range Designed for general purpose applications where discharge is infrequent, but for long periods, typically 2 hours and longer. M Range Suitable for medium discharge periods between 30 minutes and 3 hours. Ideal for standby power supplies including UPS systems. H Range Excellent high rates of discharge between 1 second and 30 minutes such as engine starting. The ALCAD range is typically suited for starter applications and critical UPS equipment, examples of which are: Diesel Engine Starting Switch Closing Uninterruptible Power Supplies (UPS) Emergency Lighting Sub-Zero climate conditions Critical DC Standby Applications Product Specification Voltage Range: nominal voltage Capacity Range: nominal capacity L Range (LC only) M range (MC only) H Range (HC only) Charging charging methods (recommended) recommended float charge recommended equalising charge standard charge Fast recharge General: 1.2V single cell 10Ah - 355Ah 9Ah - 335Ah 9Ah - 335Ah constant current charging 1.43 to 1.50 volt/cell 1.47 to 1.70 volt/cell 10% Ah capacity of cell 20% Ah capacity of cell for 2.5Hrs followed by 10% Ah capacity for 2-3Hrs charging temperature range Electrolyte should never exceed 45 C during charging Conforms to IEC 623 / DIN EN 60623

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA Model 30 60 10 15 30 60 90 2 3 MC9P 27.5 24.0 13.0 11.4 8.86 6.58 5.16 4.29 2.94 MC14P 42.7 37.3 20.3 17.8 13.8 8.02 8.02 6.68 4.58 MC22P 62.4 55.5 31.9 28.2 22.0 12.5 12.5 10.5 7.19 MC31P 87.9 78.2 44.9 39.7 31.0 17.7 17.7 14.8 10.1 MC39P 111 98.4 56..5 49.9 39.0 22.2 22.2 18.6 12.8 MC47P 133 119 68.1 60.1 47.0 26.8 26.8 22.4 15.4 MC55P 156 139 79.7 70.4 55.0 31.4 31.4 26.2 18.0 MC70P 213 187 109 95.8 74.6 40.4 40.4 33.5 22.9 MC90P 274 241 140 123 95.0 51.9 51.9 43.0 29.4 MC110P 335 294 171 151 117 63.4 63.4 52.6 36.0 MC130P 395 348 202 178 139 75.0 75.0 62.1 42.5 MC145P 441 388 226 198 155 83.6 83.6 69.3 47.4 MC165P 502 441 257 226 176 95.1 95.1 78.9 54.0 MC185P 563 495 288 253 197 107 107 88.4 60.5 MC215P 619 553 328 291 227 124 124 103 70.3 MC240P 691 617 366 325 254 138 138 115 45.5 MC285P 820 733 435 386 302 164 164 136 93.2 MC310P 892 797 473 419 328 179 179 148 101 MC335P 964 862 511 453 354 193 193 160 110 TABLE 2 GENERAL SPECIFICATION Model Discharge current to final discharge at 1.00V per cell (20-25 DEG C) seconds Capacity (Ah) Times of discharge minutes Dimensions (5Hr) L (mm) W (mm) H (mm) hours Cell filled (Kg) MC9P 9 42 121 275 1.64 MC14P 14 42 121 275 1.69 MC22P 22 42 121 275 1.91 MC31P 31 42 121 275 2.10 MC39P 39 66 121 275 3.07 MC47P 47 66 121 275 3.28 MC55P 55 66 121 275 3.47 MC70P 70 68 192 358 6.26 MC90P 90 68 192 358 6.56 MC110P 110 68 192 358 7.22 MC130P 130 68 192 358 7.68 MC145P 145 93 192 358 9.86 MC165P 165 93 192 358 10.30 MC185P 185 93 192 358 10.70 MC215P 215 93 192 414 12.30 MC240P 240 93 192 414 12.80 MC285P 285 122 192 414 16.20 MC310P 310 122 192 414 16.70 MC335P 335 122 192 414 17.30 Model Discharge current to final discharge at 1.00V per cell (20-25 DEG C) seconds Times of discharge minutes 5 30 1 5 10 15 20 30 60 HC12P 88.4 70.5 62.2 42.1 35.0 30.7 27.2 20.6 11.3 HC17P 125 99.9 88.1 59.6 49.6 43.5 38.5 29.1 16.0 HC21P 155 123 109 73.6 61.2 53.7 47.6 35.9 9.7 HC25P 184 147 130 87.6 72.9 64.0 56.7 42.7 23.5 HC29P 214 170 150 102 84.5 74.2 65.8 49.6 27.3 HC34P 251 200 176 119 99.1 87.0 77.1 58.1 32.0 HC40P 297 237 206 145 120 105 92.8 68.4 37.6 HC50P 372 296 258 181 150 132 116 85.5 47.0 HC60P 446 355 309 217 180 158 139 103 56.4 HC70P 520 414 361 253 210 185 162 120 65.8 HC80P 595 473 412 290 240 211 186 137 75.2 HC90P 669 532 464 326 270 237 209 154 84.6 HC100P 743 592 515 362 300 264 232 171 94.0 HC110P 818 651 567 398 330 290 255 188 103 HC120P 892 710 618 435 360 316 278 205 113 HC130P 847 696 613 445 377 334 297 222 122 HC155P 1010 829 731 531 449 399 355 265 146 HC185P 1210 990 873 633 536 476 423 316 174 HC210P 1370 1120 991 719 608 540 481 359 197 Model Capacity (Ah) Dimensions (5Hr) L (mm) W (mm) H (mm) Cell filled (Kg) HC12P 12 42 121 275 1.91 HC17P 17 42 121 275 2.06 HC21P 21 66 121 275 3.01 HC25P 25 66 121 275 3.15 HC29P 29 66 121 275 3.32 HC34P 34 66 121 275 3.46 HC40P 40 68 192 358 6.21 HC50P 50 68 192 358 6.57 HC60P 60 68 192 358 7.00 HC70P 70 68 192 358 7.35 HC80P 80 68 192 358 7.71 HC90P 90 93 192 358 9.80 HC100P 100 93 192 358 10.10 HC110P 110 93 192 358 10.50 HC120P 120 93 192 358 10.80 HC130P 130 93 192 414 12.00 HC155P 155 93 192 414 12.80 HC185P 185 122 192 414 16.40 HC210P 210 122 192 414 17.20 Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: Alcad L M H Issue 1 September 03

ALCAD XHP Range Nickel Cadmium Batteries 20+ year life in many applications Outstanding performance Operation over wide temperature (-40 C to +60 C) Long maintenance intervals (10 years with single rate charging) Virtually unlimited storage time Description HIGH PERFORMANCE NICAD CELLS The XHP single cell from ALCAD offer a dependable and highly responsive form of back up power for critical applications. The XHP range is specified for both on and offshore applications like hospitals, traffic control, power generation, oil & gas exploration and other hazardous marine installations where the implications of main power supply interruption cannot be contemplated. They operate faultlessly under a wide variety of climatic conditions and are built to withstand mechanical and electrical abuses such as AC ripple, overdischarging, voltage reversal, high overcharge currents all having no effect upon the XHP range. With their steel superstructure and tough polypropylene casing, the XHP life will greatly outlive a lead acid battery. All ALCAD cells comply with relevant IEC, Eurobat, DIN and BSI standards. The ALCAD range is typically suited for starter applications and critical UPS equipment, examples of which are: Diesel Engine Starting Switch Closing Uninterruptible Power Supplies (UPS) Emergency Lighting Sub-Zero climate conditions Critical DC Standby Applications Product Specification Voltage Range: nominal voltage Capacity Range: nominal capacity XHP Range Charging charging methods (recommended) recommended float charge recommended equalising charge Rapid charging General: 1.2V single cell 11Ah - 320Ah constant current charging 1.40 volt/cell 1.45 volt/cell 20% Ah capacity of cell for 8 hours charging temperature range Electrolyte should never exceed 45 C during charging Conforms to IEC 623 / DIN EN 60623

Battery Selection Chart TABLE 1 CONSTANT CURRENT DISCHARGE PERFORMANCE DATA Discharge current to final discharge at 1.00V per cell (20-25 DEG C) Discharge current to final discharge at 1.00V per cell (20-25 DEG C) Times of discharge Times of discharge Model seconds minutes Model seconds minutes 5 30 1 5 10 15 20 30 60 5 30 1 5 10 15 20 30 60 XHP 11 90.1 73.1 66.2 52.8 45.3 35.9 29.6 20.6 10.6 XHP 16 132 107 96.4 76.8 65.8 52.3 43 30 15.4 XHP 21 173 140 127 101 86.4 68.6 56.5 39.4 20.3 XHP 24 197 160 145 115 98.8 78.4 64.6 45 23.1 XHP 28 230 187 169 135 115 91.4 75.3 52.5 27 XHP 36 295 240 216 173 148 118 96.8 67.5 34.7 XHP 45 369 300 271 217 185 147 121 84.4 43.4 XHP 52 426 346 313 250 214 170 140 97.5 50.1 XHP 60 402 337 308 250 225 190 159 112 57.9 XHP 70 469 394 360 292 263 221 186 130 67.5 XHP 80 536 449 411 334 300 253 212 149 77.1 XHP 90 701 571 511 375 317 268 230 165 86.8 XHP 100 779 638 568 417 352 297 255 183 96.4 XHP 115 896 733 653 479 405 342 293 210 111 XHP 130 1010 829 738 542 458 386 332 238 125 XHP 150 1170 957 852 625 528 446 383 274 145 XHP 170 1320 1080 965 708 599 505 434 311 164 XHP 190 1480 1210 1080 791 669 565 485 347 183 XHP 220 1710 1400 1250 916 775 654 561 402 212 XHP 250 1950 1590 1420 1040 881 743 638 457 241 XHP 280 2180 1790 1590 1170 986 832 714 512 270 XHP 300 2340 1912 1700 1250 1060 892 765 548 289 XHP 320 2490 2040 1820 1330 1130 951 816 858 309 TABLE 2 GENERAL SPECIFICATION Model Capacity (Ah) Dimensions Model Capacity (Ah) Dimensions (5Hr) L (mm) W (mm) H (mm) Cell filled (Kg) (5Hr) L (mm) W (mm) H (mm) Cell filled (Kg) XHP 11 11 46.5 86 196 1.00 XHP 16 16 46.5 86 276 1.60 XHP 21 21 46.5 86 276 1.60 XHP 24 24 46.5 86 276 1.60 XHP 28 28 61 86 276 1.70 XHP 36 36 86 86 276 2.00 XHP 45 45 86 86 276 2.70 XHP 52 52 86 86 276 2.90 XHP 60 60 86 86 308 2.90 XHP 70 70 86 86 308 3.40 XHP 80 80 86 86 308 3.40 XHP 90 90 78 166 340 12.80 XHP 100 100 78 166 340 13.50 XHP 115 115 78 166 340 13.90 XHP 130 130 87 166 340 15.40 XHP 150 150 103 166 340 18.10 XHP 170 170 117 166 340 21.60 XHP 190 190 117 166 340 22.30 XHP 220 220 202 166 340 32.40 XHP 250 250 202 166 340 33.70 XHP 280 280 202 166 340 34.60 XHP 300 300 202 166 340 35.50 XHP 320 320 202 166 340 36.20 Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com CCL - Datasheet Reference: Alcad XHP Issue 1 September 03

Sentry UL Battery Charger OPERATION & MAINTENANCE GUIDE THIS MANUAL REFERS TO THE FOLLOWING MODELS SUL100 12V SUL100 24V SUL120 12V SUL120 24V ESUL100 12V ESUL100 24V ESUL120 12V ESUL120 24V For safe and correct use of the unit read the safety instructions which precede the operating instructions for the above units. THIS GUIDE CONTAINS 6 PAGES (including this one) IF ANY PAGES ARE MISSING - CONTACT THE BATTERY CHARGERSUPPLIER OR MANUFACTURER Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 121 327 8500 Fax +44 121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com Sentry Iss7 Installation Instructions - December 03

IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS - SAFETY INSTRUCTIONS This manual contains important safety and operating instructions for models SUL100, SUL120, ESUL100 and ESUL120. Do not expose charger to rain or snow Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fire, electric shock, or injury to persons. Do not operate charger if it has received a sharp blow, been dropped, otherwise damaged in any way; return to supplier. Do not disassemble charger, return to supplier when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire. WARNING - RISK OF EXPLOSIVE GASES WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. To reduce the risk of battery explosion, follow these instructions and those published by battery manufacturers and manufacturer of any equipment you intend to use in vicinity of the battery. Review cautionary marking on these products and on any attached equipment. PERSONAL PRECAUTIONS (i) Someone should be within range of your voice or close enough to come to your aid when you work near a lead-acid battery. (ii) Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing or eyes. (iii) Wear complete eye protection and clothing protection. Avoid touching eyes while working near batteries. (iv) If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eyes, immediately flood eyes with running cold water for at least 10 minutes and get medical attention immediately. (v) NEVER smoke or allow a spark or flame in vicinity of battery. (vi) Be extra cautious to reduce risk of dropping a metal tool onto battery. It may spark or short-circuit the battery or other electrical part that may cause explosion. (vii) Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn. (viii) Use charger only for charging batteries as stated on the charger. Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property. (ix) NEVER CHARGE A FROZEN BATTERY PRIOR TO INSTALLATION / COMMISSIONING Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes. Add distilled water in each cell until battery acid reaches level specified by battery manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without cell caps, carefully follow manufacturer s recharging instructions. Study all battery manufacturer s specific precautions such as removing or not removing cell caps while charging and recommended rates of charge. Determine voltage of battery by referring to engine manual and ensure matches charger s output voltage. CHARGER LOCATION AND CONNECTION Never place charger directly above battery being charged, gases from battery will corrode and damage charger. Never allow battery acid to drip on charger when reading specific gravity or filling battery. Do not operate charger in a closed-in area or restrict ventilation in any way. The battery charger should be connected to a grounded, metal, permanent wiring system; or an equipment-grounding conductor should be run with circuit conductors not connected to equipment-grounding terminal on battery charger. Connections to battery charger should comply with all local codes and ordinances. SUL100 & SUL120 - These battery chargers should be installed so that they are not likely to be contacted by people. ESUL100 & ESUL120 - The AC wiring should be independent of the DC and alarm wiring. Use AWG#12 or larger wre for DC (charger to battery)leads. Use AWG#14 or larger for input and ground connections. For safe and correct use of the unit follow the following steps, should you have any problems and the unit does not function as expected consult our troubleshooting guide at the end of these instructions. Visually inspect unit for any signs of damage, caused by transport or storage Mount charger as outlined above, paying attention to ambient temperature Ensure mains supply is isolated and connect observing the correct rated input voltage Ensure unit is earthed at the marked earth stud Check batteries in accordance with manufacturer guidelines Check charger is correct for battery type and voltage Connect unit to batteries, observing correct polarity and ensuring a secure and tight connection Switch on unit at mains supply Sentry Iss7 Installation Instructions - December 03 - Page 2 of 6

Sentry UL Battery Charger Installation Instructions GENERAL INFORMATION Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical technicians install this product. If in doubt, please contact your local Computronic representative. Product Specification Power Supply: BEFORE BEGINNING INSTALLATION OF THIS PRODUCT Disconnect all electrical power to the charger nominal operating voltages permissible voltage variation nominal operating frequency 120V Units 240V Units ± 6% of nominal 50/60Hz Make sure the charger cannot operate during installation Follow all safety warnings of charger and battery manufacturers Read and follow all installation instructions Description The Sentry UL range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in either an open frame construction, designed for surface mounting in an enclosed panel or as a wall mounted enclosure with charging indication via an ammeter. Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This operation equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost initiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficient of 3mV/ C/Cell. Charge fail option A self diagnostic 'charge fail' circuit and relay output is provided. The volt free relay de-energises in the event of a charging fault. Electrical connection of the AC and DC supply and alarms are via spring-clamp terminals. (For more information on these terminals see Computronic Controls Product Change Ref: CCL PC Release 1 - April03) DC Charge Output: maximum current ADC 5 10 nominal voltage VDC 24 12 float / boost voltages These are factory preset for specified batteries, typical settings are as follows: - Float Voltage 12V 24V Vented Lead Acid 13.7V 27.2V 12V 10 Cell 24V 20 Cell NiCad 14.1V 28.2V Boost Voltage 12V 24V Vented Lead Acid 14.1V 28.2V 12V 10 Cell 24V 20 Cell NiCad 14.6V 29.2V Charge Fail Output: relay type contact rating General: volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) transformer Single Phase 50-60Hz Class 130 operating temperature -10 to +55 C OPEN FRAME MODELS SUL 100 dimensions weight SUL 120 dimensions weight 148mm/5.8 (L) x 110mm/4.3 (W) x 110mm/4.3 (H) 2.6Kg / 5.525lbs 168mm/6.6 (L) x 110mm/4.3 (W) x 123mm/4.8 (H) 6.4Kg / 13.6lbs WALL MOUNTED ENCLOSURE MODELS ESUL 100 dimensions weight 281mm/11.1 (L) x 140mm/5.5 (W) x 115mm/4.5 (H) 5.6Kg / 11.9lbs ESUL 120 dimensions 281mm/11.1 (L) x 140mm/5.5 (W) x 115mm/4.5 (H) weight 9.4Kg / 19.98lbs EMC emission / immunity EN58801-2 / EN50082-2 Sentry Iss7 Installation Instructions - December 03 - Page 3 of 6

GENERAL INFORMATION (ctd) Current Limiting The Sentry Battery Charger is current limited and will only output the rated current of the charger (see chart below) SENTRY CURRENT RATINGS MODEL ESUL & SUL 100 12V ESUL & SUL 100 24V ESUL & SUL 120 12V ESUL & SUL 120 24V RATING 5A 3A 10A 5A Battery Charged Condition When charged the battery will only accept a charge to replace the losses within the battery (approx. 1mA per AH of battery). If there is a standing load (i.e. the panel controller etc) the charger will output the standing load plus the losses to the battery i.e. if a standing load of 1A is present with 50AH Vented Lead Acid batteries then charger will supply 1.05 amps. A charged battery with open circuit terminals (i.e. no load connected) will always be higher than nominal battery voltage (i.e. 12.6 on a 12V lead acid battery) Dimensions figure 1a - Open frame models END VIEW SIDE VIEW figure 1b - Wall mounted enclosed models END VIEW PLAN VIEW (Height) (Width) (Length) (Width) (Length) (Height) L W H Weight L W H Weight SUL100 148mm 5.8 110mm 4.3 110mm 4.3 2.6Kg 5.5lbs ESUL100 281mm 11.1 140mm 5.5 115mm 4.5 5.6Kg 11.9lbs SUL120 168mm 6.6 110mm 4.3 123mm 4.8 6.4Kg 13.6lbs ESUL120 281mm 11.1 140mm 5.5 115mm 4.5 9.4Kg 19.9lbs IMPORTANT ASSEMBLY INSTRUCTIONS - SAVE THESE INSTRUCTIONS OPEN FRAME MODELS - SUL100 & SUL120 The charger must be mounted as shown in Figure 2a. Four screws should be used to mount charger to panel. Ensure screws are tightened firmly as as not to become loose during normal use on engine. Adequate consideration should be given to ventilation for proper heat dissipation. WALL MOUNTED ENCLOSURE MODELS - ESUL100 & ESUL120 The charger must be mounted as shown in Figure 2b. The lower face is removed by unscrewing the four fixing screws. The face is removed by sliding the face backward, thereby releasing the feet from their fixing holes. Cable entry is via knock-outs on the side of the unit, these must be carefully removed from the enclosure sides. A suitable cable-gland (20mm/0.8 DIA) should be used to prevent damage to cables and stop unwanted entry into inner part of charger. See Electrical Connection for details of terminal connections. The lower face should be firmly screwed to the charger before use. Four screws should be used to mount charger to panel. Ensure screws are tightened firmly as as not to become loose during normal use on engine. Adequate consideration should be given to ventilation for proper heat dissipation. Fixing Holes SUL 100 & 120-130mm / 5.1" Fixing Holes SUL100 & 120-98.8mm / 3.9" Figure 2a - open frame models Fixing Holes ESUL 100 & 120-274mm / 10.75" Fixing Holes ESUL 100 & 120-66mm / 2.6" Figure 2b - wall mounted enclosure models CAUTION: When handling chargers, care should be taken not to place excessive strain on either the protective aluminium back plate, PCB, transformer or connecting wires. Unit should be handled by aluminium chassis (open frame models) or steel enclosure (enclosed models). Sentry Iss7 Installation Instructions - December 03 - Page 4 of 6

IMPORTANT OPERATING INSTRUCTIONS - SAVE THESE INSTRUCTIONS Before operating the battery charger, ensure that the charger is assembled and installed as per the section listed in these instructions. Terminal Connection Information OUTPUT INPUT CHARGE FAIL BOOST + - N L O.I. Com N/O N/C Output: Input: Charge Fail: Boost: To battery CAUTION: Observe correct polarity AC supply CAUTION: Observe correct voltage as stated on unit O.I. - Output Inhibit (will prevent unit from showing charge fail in case of overvoltage from alternator) Com - Common N/O - Normally Open N/C - Normally Closed (See notes on connection of charge fail - see right) Boost Initiate - Linking these two connectors will force the charger from into a single boost cycle of operation. (Once the charger has completed a single boost cycle as outlined on page 1 of these instructions the charger returns to it s normal mode of operation) Stripped wire is introduced just before the clamping unit. The clamp spring is pressed down and wire is introduced into the clamping unit immediately The clamp spring is released - the conductor is automatically clamped NB. All connections, including AC input and DC output are made via spring-clamp connections as outlined above. Connection to Mains Supply: Ensure supply is isolated before connection is made to charging unit Ensure unit is properly earthed at earth stud on chargers metal chassis CAUTION: Ensure correct AC voltage is supplied to unit, applying 230VAC on a 115VAC unit will destroy it and could cause serious personal injury. Connection to Batteries: Ensure mains supply is isolated before connecting charger to batteries Ensure battery type and voltage are correct before connecting to batteries WARNING: Charging either different voltage or type of batteries from stated type may result in damage to both the charging unit and/or batteries and could result in serious personal injury. Disconnection of Batteries: Ensure mains supply is isolated before disconnecting charger from batteries WARNING: Disconnecting the batteries whilst mains supply is connected to the charger could result in a spark at battery terminals, this could ignite the hydrogen given off from the batteries. Boost Initiate Connection: The charger will be in it s normal mode of operation whilst the boost link is broken, upon connecting the two boost initiate terminals the charger will perform a single auto-boost cycle, whereby the charger outputs a higher voltage, once battery voltage has reached this point, the charger returns to it s normal float mode of operation. Charge Fail Connection: In a de-energised state the COM - N/C contact is alarmed. The relay energises on power up and changes state to COM - N/O. These contacts are volt-free contacts rated at 1A @ 30VDC. Fuses: The wall mounted enclosure models are fitted with internal mains input fuses at the stated ratings (see F1 in above), the open frame models must be fitted with an external mains fuse at ratings shown (see F1 in above). Before replacing any fuses, ensure charger is isolated from mains supply. All Sentry UL (SUL & ESUL) models are fitted with a self-resetting polyfuse on the dc output. If reverse polarity or short circuit faults are made, isolate supply, disconnect the outputs and allow fuse to self-reset. The charger can then be re-connected and switched back on. No replacement of output fuse should be necessary. If fuse fails to reset, the charger should be returned to supplier. AUTOMATIC BATTERY CHARGER The Sentry UL range is an automatic battery charger, if battery voltage falls below a preset voltage (10.2V on a 12V lead-acid battery) the charger will automatically enter an increased charging voltage state (boost). Once the batteries have reached this point, the charger will switch to it s normal float voltage. this prevents over-charge, which inturn prevents the battery from over-gassing and subsequently maximises battery life. WARNING: The Sentry UL range is not USER SERVICEABLE. No attempt should be made to replace or repair the charger, any attempt to do so may invalidate any warranties and could cause serious personal harm or injury as well as damage to both the battery charger and any connected devices. In event of failure the charger should be returned to supplier. ELECTRICAL CONNECTION WARNING: DANGER OF INJURY OR DEATH. Before connection, disconnection or handling of SENTRY battery charger, ensure that all AC power supplies are isolated. Connection to or disconnection from live wiring can also cause damage to internal components. Sentry Iss7 Installation Instructions - December 03 - Page 5 of 6

TROUBLESHOOTING FLOWCHART START HERE Are batteries charging? YES PROBLEM SOLVED MEASURING CHARGING VOLTAGE AND CURRENT NO Lead Acid @ 20ºC CHARGER Figure (ii) + - A + BATTERY - CURRENT FLOW FROM CHARGER TO BATTERY If voltage at terminals is less than nominal battery voltage then the maximum rated charger current should be present. Note: Once battery is fully charged, output current should be between 0/1% and 0.5% of battery's AH capacity plus any standing loads. VOLTAGE RISE AT BATTERY TERMINALS A gradual rise of voltage should be seen slowing as float voltage is reached. - batteries should NOT be boost charged continuously (see page 3) Note: If the battery voltage increases rapidly during charge and no or minimum current is measured then the battery may have become sulphated and will not hold charge and may be unrecoverable V To check charger is working, follow these steps then consult expected conditions for relevant battery type below. (1) VOLTAGE - Place voltmeter across battery terminals (V on fig ii) (2) CURRENT - Break the positive line to the battery and place an ammeter between positive from charger and positive of battery (A on fig ii) Wet NiCad CURRENT FLOW FROM CHARGER TO BATTERY The current should stay constant or near to constant whilst charging. VOLTAGE RISE AT BATTERY TERMINALS A gradual rise of voltage should be seen until float voltage is reached, once fully charged a slight drop in battery voltage will be measured - batteries should NOT be boost charged continuously (see page 3) Is a battery charger connected? NO Connect battery charger YES Is correct mains supply present on terminals? NO Check mains supply, fuses and wiring. YES Is output voltage correct for batteries? NO Replace with correct voltage charger. Lead Acid 12V 24V Float: 13.8V 27.6V Boost: 14.5V 29.0V Wet NiCad 12V (10 Cell) 24V (20 Cell) Float: 14.1V 28.2V Boost: 14.6V 29.2V YES Typical output with no battery or load connected: SUL & ESUL models - 50% nominal charger voltage Is output voltage correct polarity on terminals? NO Check fuses and wiring. YES Is battery charger correct size for battery? NO Replace with correct size charger. YES Lead Acid Refer to genset manual for sizing of battery chargers to generator set. If installing your own chargers, battery manufacturers recommend the following: - Minimum charge current should be approximately 5% battery AH capacity Maximum charge current to be equal to 25% battery AH capacity NOTE: When batteries are normally charged by a charging alternator, a float battery charger rated at lower than the minimum charge current is sufficient to keep batteries in fully charged state. Wet NiCad Min Charge Current = AH Capacity of batteries 10 Max Charge Current = AH Capacity of batteries 5 Is there a standing load present? NO Are electrolyte levels correct? YES Are batteries at end of life? YES Replace batteries YES Is standing load current greater than charger output current? REMINDER NO FACTORS CONTRIBUTING TO ELECTROLYTE LOSS Physical damage to cells can cause electrolyte to leak or evaporate High charging voltages will evaporate electrolyte Check charging voltage against battery type and voltage WARNING: If the batteries are being used at above 20 DEGREES CELSIUS the chargers output voltage should be temperature compensated at -3mV/ºC/Cell The battery charger will need to provide both the standing load and minimum charge current I.e. if a charging current of 2A is required, and the standing load is 1A then the charger YES needs to be able to output a NO total of 3 amps Lead Acid Two possible methods: (1) Using Hydrometer or (2) Using a digital DC voltmeter Step 1. Fully charge the batteries Step 2. Disconnect batteries and leads and leave for 24 hours Step 3. Measure either specific gravity (hydrometer) or terminal voltage (voltmeter) and compare with table below. % Charge Specific Gravity Voltage (DC) on a 12V battery 100 1.265 12.8 75 1.225 12.5 50 1.19 12.4 25 1.155 12.0 Discharged 1.12 11.5 If the voltage across the terminals shows around 10.5V, this may indicate a shorted cell is present. Step 4. If time is limited due to on-site testing, remove surface charge by either applying a 20A load for 3 minutes or crank engine for 10 seconds, then disconnect batteries and leads and leave for minimum of 10 mins. NOTE: On this method, providing batteries have been sized correctly for engine and charged correctly, an open terminal voltage of 12.5V or greater should be present. Replace charger with correct size unit. Top up batteries as per manufacturers recommendations Battery Charger may be faulty - Contact manufacturer Sentry Iss7 Installation Instructions - December 03 - Page 6 of 6

Guardian Battery Charger OPERATION & MAINTENANCE GUIDE THIS MANUAL REFERS TO THE FOLLOWING MODELS G150 12V G300 12V G300 24V G600 24V EG150 12V EG300 12V EG300 24V EG600 24V For safe and correct use of the unit read the safety instructions which precede the operating instructions for the above units. THIS GUIDE CONTAINS 6 PAGES (including this one) IF ANY PAGES ARE MISSING - CONTACT THE BATTERY CHARGERSUPPLIER OR MANUFACTURER Computronic Controls Ltd 41-46 Railway Terrace Nechells. Birmingham, B7 5NG United Kingdom Tel +44 (0)121 327 8500 Fax +44 (0)121 327 8501 email: sales@computroniccontrols.com web: www.computroniccontrols.com Guardian Installation Instructions - April 04

IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS - SAFETY INSTRUCTIONS This manual contains important safety and operating instructions for models G150, G300, G600, EG150, EG300 and EG600. Do not expose charger to rain or snow Use of an attachment not recommended or sold by the battery charger manufacturer may result in risk of fire, electric shock, or injury to persons. Do not operate charger if it has received a sharp blow, been dropped, otherwise damaged in any way; return to supplier. Do not disassemble charger, return to supplier when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire. WARNING - RISK OF EXPLOSIVE GASES WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. To reduce the risk of battery explosion, follow these instructions and those published by battery manufacturers and manufacturer of any equipment you intend to use in vicinity of the battery. Review cautionary marking on these products and on any attached equipment. PERSONAL PRECAUTIONS (i) Someone should be within range of your voice or close enough to come to your aid when you work near a lead-acid battery. (ii) Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing or eyes. (iii) Wear complete eye protection and clothing protection. Avoid touching eyes while working near batteries. (iv) If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eyes, immediately flood eyes with running cold water for at least 10 minutes and get medical attention immediately. (v) NEVER smoke or allow a spark or flame in vicinity of battery. (vi) Be extra cautious to reduce risk of dropping a metal tool onto battery. It may spark or short-circuit the battery or other electrical part that may cause explosion. (vii) Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid battery. A lead-acid battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe burn. (viii) Use charger only for charging batteries as stated on the charger. Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property. (ix) NEVER CHARGE A FROZEN BATTERY PRIOR TO INSTALLATION / COMMISSIONING Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes. Add distilled water in each cell until battery acid reaches level specified by battery manufacturer. This helps purge excessive gas from cells. Do not overfill. For a battery without cell caps, carefully follow manufacturer s recharging instructions. Study all battery manufacturer s specific precautions such as removing or not removing cell caps while charging and recommended rates of charge. Determine voltage of battery by referring to engine manual and ensure matches charger s output voltage. CHARGER LOCATION AND CONNECTION Never place charger directly above battery being charged, gases from battery will corrode and damage charger. Never allow battery acid to drip on charger when reading specific gravity or filling battery. Do not operate charger in a closed-in area or restrict ventilation in any way. The battery charger should be connected to a grounded, metal, permanent wiring system; or an equipment-grounding conductor should be run with circuit conductors not connected to equipment-grounding terminal on battery charger. Connections to battery charger should comply with all local codes and ordinances. G150, G300 & G600 - These battery chargers should be installed so that they are not likely to be contacted by people. EG150, EG300 & EG600 - The AC wiring should be independent of the DC and alarm wiring. Use 2x 2.5mm 2 (total wire ø=5mm 2 ) or larger wire for DC (charger to battery) leads. Use 2.5mm 2 or larger for input and ground connections. For safe and correct use of the unit follow the following steps, should you have any problems and the unit does not function as expected consult our troubleshooting guide at the end of these instructions. Visually inspect unit for any signs of damage, caused by transport or storage Mount charger as outlined above, paying attention to ambient temperature Ensure mains supply is isolated and connect observing the correct rated input voltage Ensure unit is earthed at the marked earth stud Check batteries in accordance with manufacturer guidelines Check charger is correct for battery type and voltage Connect unit to batteries, observing correct polarity and ensuring a secure and tight connection Switch on unit at mains supply Guardian Installation Instructions - April 04 - Page 2 of 6

Guardian Battery Charger Installation Instructions GENERAL INFORMATION Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical technicians install this product. If in doubt, please contact your local Computronic representative. Product Specification Power Supply: BEFORE BEGINNING INSTALLATION OF THIS PRODUCT Disconnect all electrical power to the charger nominal operating voltages permissible voltage variation nominal operating frequency 120V Units 240V Units ± 6% of nominal 50/60Hz Make sure the charger cannot operate during installation Follow all safety warnings of charger and battery manufacturers Read and follow all installation instructions DC Charge Output: maximum current ADC 20 20 nominal voltage VDC 24 12 Description The Guardian range provides automatic, current limited and voltage controlled charging of vented lead acid or NiCd batteries. The units may be used in a wide range of industrial charging applications, including standby engines, pumps and generators. The charger is supplied in either an open frame construction, designed for surface mounting in an enclosed panel or as a wall mounted enclosure with charging indication via an ammeter and voltmeter. (Note: In event of no AC supply to charger, the voltmeter will display the DC voltage of any connected DC equipment) Each unit consists of a transformer, rectifier and thyristor control circuit. The control circuit ensures that the charger maintains a battery voltage at the pre-calibrated float level, while supplying any additional load current up to the specified maximum. Auto Boost (Equalising) Operation Auto boost operation provides an increased output voltage when batteries are below a preset point. Once the batteries have reached the boost voltage the charger reverts to its float voltage. This operation equalises the batteries, maximising battery life and capacity. Boost Initiate Operation The boost initiate switch forces the charger to enter an auto boost cycle (see above) even if battery voltage is above the preset point, once this operation is completed the charger returns to it s float voltage. Temperature Compensation The remote temperature compensation provides control of the output voltage based upon temperature, as temperature increases the charging voltage is decreased at a negative coefficient of 3mV/ C/Cell. Charge fail & alarms option A self diagnostic 'charge fail' circuit and relay output is provided along with under and over voltage warnings. The volt free relays de-energise in the event of a charging fault or high/low battery state. Electrical connection of the AC and DC supply and alarms are via spring-clamp terminals. (For more information on these terminals see Computronic Controls Product Change Ref: CCL PC Release 1 - April03) float / boost voltages These are factory preset for specified batteries, typical settings are as follows: - Float Voltage 12V 24V Vented Lead Acid 13.7V 27.2V 12V 10 Cell 24V 20 Cell NiCad 14.1V 28.2V Boost Voltage 12V 24V Vented Lead Acid 14.1V 28.2V 12V 10 Cell 24V 20 Cell NiCad 14.6V 29.2V Charge Fail Output: relay type contact rating General: transformer operating temperature OPEN FRAME MODELS volt free SPDT contacts relay de-energised on fault 1A @ 30VDC (resistive load) Single Phase 50-60Hz Class 155 (F) -10 to +55 C G150 & G300 dimensions 126mm/4.9 (W) x 124mm/4.9 (D) x 126mm/4.9 (H) weight 4.5Kg / 10lb G600 dimensions weight 126mm/4.9 (W) x 124mm/4.9 (D) x 156mm/6.1 (H) 7.8Kg / 17.3lb WALL MOUNTED ENCLOSURE MODELS Guardian Installation Instructions - April 04 - Page 3 of 6 EG150 & EG300 dimensions 278mm/10.9 (W) x 120mm/4.7 (D) x 280mm/11 (H) weight 8.4Kg / 17.9lbs EG600 dimensions 300mm/11.8 (W) x 300mm/11.8 (D) x 210mm/8 (H) weight 15Kg / 31.8lbs EMC emission / immunity EN58801-2 / EN50082-2

GENERAL INFORMATION (ctd) Current Limiting The Guardian Battery Charger is current limited and will only output the rated current of the charger (see chart below) GUARDIAN CURRENT RATINGS MODEL G150 12V & G300 24V EG150 12V & EG300 24V G300 12V & G600 24V EG300 12V & EG600 24V Dimensions figure 1a - Open frame models RATING 10A 10A 20A 20A Battery Charged Condition When charged the battery will only accept a charge to replace the losses within the battery (approx. 1mA per AH of battery). If there is a standing load (i.e. the panel controller etc) the charger will output the standing load plus the losses to the battery i.e. if a standing load of 1A is present with 50AH Vented Lead Acid batteries then charger will supply 1.05 amps. A charged battery with open circuit terminals (i.e. no load connected) will always be higher than nominal battery voltage (i.e. 12.6 on a 12V lead acid battery) figure 1b - Wall mounted enclosed models D W H Weight D W H Weight G150 &G300 G600 126mm 4.9 126mm 4.9 124mm 4.9 124mm 4.9 126mm 4.9 156mm 6.1 4.5Kg 10lbs 7.8Kg 17.3lbs EG150 & 300 EG600 278mm 10.9 300mm 11.8 120mm 4.7 300mm 11.8 280mm 11 210mm 8.3 8.4Kg 11.9lbs 15Kg 31.8lbs IMPORTANT ASSEMBLY INSTRUCTIONS - SAVE THESE INSTRUCTIONS OPEN FRAME MODELS - G150, G300 & G600 The charger must be mounted as shown in Figure 2a, with heatsink fins in vertical position. Four screws should be used to mount charger to panel. Ensure screws are tightened firmly as as not to become loose during normal use on engine. Adequate consideration should be given to ventilation for proper heat dissipation. WALL MOUNTED ENCLOSURE MODELS - EG150, EG300 & EG600 The charger must be mounted as shown in Figure 2b. By unscrewing the fixing screws the faces can be opened on their hinges, to allow access to the internal connections. Cable entry is via knock-outs on either side of the unit, these must be carefully removed from the enclosure sides. A suitable cable-gland (20mm/0.8 DIA) should be used to prevent damage to cables and stop unwanted entry into inner part of charger. See Electrical Connection for details of terminal connections. The lower face should be firmly screwed to the charger before use. Four screws should be used to mount charger to panel. Ensure screws are tightened firmly as as not to become loose during normal use on engine. Adequate consideration should be given to ventilation for proper heat dissipation. A B G300 All models (mm) 70 90 Figure 2a - open frame models G600 All models (mm) 90 120 Fixing hole dimensions: Width (between holes) - 173mm (6.8 ) Height (between holes)- 255mm (10 ) Fixing holes Ø=6mm (0.2 ) Figure 2b - wall mounted enclosure models CAUTION: When handling chargers, care should be taken not to place excessive strain on either the heatsink, PCB, transformer or connecting wires. Unit should be handled by transformer frame (open frame models) or steel enclosure (enclosed models). Guardian Installation Instructions - April 04 - Page 4 of 6

IMPORTANT OPERATING INSTRUCTIONS - SAVE THESE INSTRUCTIONS Before operating the battery charger, ensure that the charger is assembled and installed as per the section listed in these instructions. Terminal Connection Information OUTPUT - + BOOST CHARGE FAIL Com N/O N/C OVER VOLTS UNDER VOLTS Com N/O N/C Com N/O N/C INPUT N L Output: To battery CAUTION: Observe correct polarity Input: AC supply CAUTION: Observe correct voltage as stated on unit ALARM INDICATION - Over Voltage, Under Voltage and Charge Fail Com - Common N/O - Normally Open N/C - Normally Closed (See notes on connection of alarms - see right) Boost: Boost Initiate - Linking these two connectors will force the charger from into a single boost cycle of operation. (Once the charger has completed a single boost cycle as outlined on page 3 of these instructions the charger returns to it s normal mode of operation) Stripped wire is introduced just before the clamping unit. The clamp spring is pressed down and wire is introduced into the clamping unit immediately The clamp spring is released - the conductor is automatically clamped NB. All connections, including AC input and DC output are made via spring-clamp connections as outlined above. Connection to Mains Supply: Ensure supply is isolated before connection is made to charging unit Ensure unit is properly earthed at earth stud on chargers metal chassis CAUTION: Ensure correct AC voltage is supplied to unit, applying 240VAC on a 120VAC unit will destroy it and could cause serious personal injury. Connection to Batteries: Ensure mains supply is isolated before connecting charger to batteries Ensure battery type and voltage are correct before connecting to batteries WARNING: Charging either different voltage or type of batteries from stated type may result in damage to both the charging unit and/or batteries and could result in serious personal injury. Disconnection of Batteries: Ensure mains supply is isolated before disconnecting charger from batteries WARNING: Disconnecting the batteries whilst mains supply is connected to the charger could result in a spark at battery terminals, this could ignite the hydrogen given off from the batteries. Boost Initiate Connection: The charger will be in it s normal mode of operation whilst the boost link is broken, upon connecting the two boost initiate terminals the charger will perform a single auto-boost cycle, whereby the charger outputs a higher voltage, once battery voltage has reached this point, the charger returns to it s normal float mode of operation. Over Voltage, Under Voltage and Charge Fail Connection: In a de-energised state the COM - N/C contact is alarmed. The relay energises on power up and changes state to COM - N/O. These contacts are volt-free contacts rated at 1A @ 30VDC. Fuses: All Guardian models are fitted with mains input fuses at the required ratings (see markings on chargers). Before replacing any fuses, ensure charger is isolated from mains supply. The G150 12V, EG150 12V, G300 12V, EG300 12V, G300 24V and EG300 24V models are fitted with a self-resetting polyfuse on the dc output. If reverse polarity or short circuit faults are made, isolate supply, disconnect the outputs and allow fuse to self-reset. The charger can then be re-connected and switched back on. No replacement of output fuse should be necessary. If fuse fails to reset, the charger should be returned to supplier. The G600 and EG600 models are fitted with an Automotive type blade fuse. Ensure correct rating when replacing fuses. AUTOMATIC BATTERY CHARGER The Guardian range is an automatic battery charger, if battery voltage falls below a preset voltage (12.2V on a 12V lead-acid battery) the charger will automatically enter an increased charging voltage state (boost). Once the batteries have reached this point, the charger will switch to it s normal float voltage. this prevents over-charge, which inturn prevents the battery from over-gassing and subsequently maximises battery life. WARNING: The Guardian range is not USER SERVICEABLE. No attempt should be made to replace or repair the charger, any attempt to do so may invalidate any warranties and could cause serious personal harm or injury as well as damage to both the battery charger and any connected devices. In event of failure the charger should be returned to supplier. ELECTRICAL CONNECTION WARNING: DANGER OF INJURY OR DEATH. Before connection, disconnection or handling of GUARDIAN battery charger, ensure that all AC power supplies are isolated. Connection to or disconnection from live wiring can also cause damage to internal components. Guardian Installation Instructions - April 04 - Page 5 of 6