DO NOT ATTEMPT TO INSTALL OR START FLOW METER WITHOUT READING THIS ENTIRE MANUAL

Transcription

1 Positive Displacement Flowmeters Operational Manual Model 213 For Models Model 213, P002, 214, 215 and 216 Model P002 Model 214 Model 216 Model Piston Series Positive Displacement Flow Meters Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 1

2 Table of Contents Before You Install...page 3 Meter General Description... page 4 Transmitter General Description... page 5 Meter Specifications... page 6 Transmitter Specifications Analog...page 7 Transmitter Specifications Frequency (Pulse)... page 8 Do s & Don ts... page 9 Installation...page 10 Operation... page 11 Electrical Installation - Wiring...page Troubleshooting...page 14 Diagrams & Pressure Drop: 213 Piston Flow Meter...page 15 P002 Piston Flow Meter...page Piston Flow Meter... page Piston Flow Meter...page Piston Flow Meter...page 19 Contact for Repairs & Calibration Services... page 20 Installation Instructions Hazardous Locations...page Electrical Requirements...page 23 EC Declaration of Conformity...page 24 DO NOT ATTEMPT TO INSTALL OR START FLOW METER WITHOUT READING THIS ENTIRE MANUAL Max Machinery, Inc. Max Machinery, Inc. (MMI) reserves the right to make changes to the product in this Instruction Manual to improve performance, reliability, or manufacturability. Consequently, contact MMI for the latest available specifications and performance data. Although every effort has been made to ensure accuracy of the information contained in this Instruction Manual, MMI assumes no responsibility for inadvertent errors. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 2

3 Before You Install Thank you for choosing to install a Max Machinery precision flow meter. To ensure the best experience please take a moment to read through this manual prior to installation. When you purchased this meter a flow engineer helped determine many of the factors that will be reviewed on the following pages. You may find it useful to fill out the form below and keep it in your files for reference. When you are ready to install there will be a few tools you will need: Meter Installation: The meter and transmitter A signal cable (available from factory) The display or signal processing device Indicator Manual Calibration Certificate Bypass plumbing supplies Many Max meters are installed and operate for decades, so having the following information in your records may prove useful. We have provided this outline as a starting point. Process Temperatures Operating Range Max Sales # or PO # Meter Model # Transmitter Model # Fluid Viscosity Line Pressure Installation Date Meter Serial # Transmitter Serial # Notes: Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 3

4 Meter General Description The Max 210 Series Flow Meters are positive displacement piston type units capable of great accuracy over a wide range of flow rates and fluid viscosities. The four basic sizes of this series (213, 214, 215, 216) will measure flows from 1 cc/min to 25 gal/min. Various O ring and internal plating options are available to meet temperature and fluid compatibility requirements. inlet outlet In a piston type flow meter, four pistons and cylinders are arranged in a radial fashion around a central crankshaft. Two fluid ports on the cylinder wall, a port at the top of the cylinder, and a grooved piston enable fluid entering the flow meter s central cavity to be measured and pumped out by each piston in turn. The valving action for each cylinder is accomplished by the piston adjacent to it. The accuracy of a piston flow meter is dependent on close tolerances in the cylinder wall and piston. Max Machinery regularly holds tolerances as fine as inches in the production of these meters. The movement of the pistons is converted to a circular motion at the central crankshaft, which is coupled to a magnet in the flow meter. This motion is sensed by an external electronic transmitter, which converts flow into a voltage, pulse train, or current for further processing. The Max Series 210 Meter can be expected to perform superbly if operated within the confines of its design envelope. For this reason, it is important to read this manual and understand the operational requirements and limits of the meter. Our Technical Service staff will be happy to answer any questions that this manual does not cover. Max Model 214 Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 4

5 Transmitter General Description Max transmitters are designed to work with the entire family of Max Flow Meters to provide extremely precise flow measurement in a cost effective package. Different options of industrial housings or IP66 rated explosion proof enclosures, combined with a choice of one-part and two-part, high temperature designs with remote electronics cover a wide range of application environments from the laboratory to harsh industrial processes. This latest generation of transmitters use modern sensor technology coupled with advanced signal processing to deliver high levels of performance and reliability. Hall sensors are used to detect the position of a driven magnet inside a Max Flow Meter. Changes in position are tracked by a microprocessor, which generates an output proportional to the flow rate. Advanced signal processing provides both fine angular resolution (0.36 degrees rotation) and rapid response (output updated every one millisecond). Max transmitters are typically mated to a mechanical flow meter, configured, and calibrated at the factory as a set. This ensures accuracy and allows quick setup in the field. For field installations where the transmitter has not been setup with a meter at the factory, an optional serial interface kit provides full access to configuration options and parameters. Transmitter Features High resolution measurement Analog Output: Configured output ranges to any value within ± 10 Vdc or ± 20 ma. Frequency Output: Configured output resolution of 1 to 1000 pulses per revolution. Linearization of up to 16 points to fully describe the flow meter s output curve and achieve the highest system linearity over the meter s entire operating range. Compensation Algorithm Compensates for variations in Hall sensor and flow meter characteristics to provide a stable, undamped output that accurately represents the instantaneous flow rate. This feature is factory set when the meter and transmitter are mated together. If the transmitter is changed, the compensation can be performed via a button on the circuit board. Anti-Dither Buffer - Masks the false output that may occur at very low flow rates in the presence of vibration or hydraulic noise. If the meter reverses direction the output signal will be interrupted for a user selected portion of a meter rotation. Reverse flow exceeding the buffer setting will result in an output proportional to reverse flow rate. The buffer quantity can be set from 1% to 100% of a revolution. 213 Standard Part Pickup 213 Ex-Proof Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 5

6 Meter Specifications Model 213 P Maximum flow rate Gal/min: Liters/min: Maximum pressure (psi) 2xx-3xx, 2xx-4xx: 1,000 psi (70 bar) 2xx-6xx: 3,000 psi (210 bar) P002, 214-5xx 7,250 psi (500 bar) Pressure drop (PSIG) Operating maximum: Absolute maximum: % Flow (3cps): Maximum temperature part: 195 F (90 C) Maximum temperature part: 435 F (225 C) Recommended filtration 10 micron 10 micron 10 micron 10 micron 10 micron Displacement (cc/rev) Weight (lbs) 1000 & 3000 psi 1.25 (0.57Kg) (2.8Kg) (10.3Kg) (25.1Kg) 7250 psi (1.9kg) 14.4 (6.5) Typical k-factor (pulses/cc) 290 Frequency series Transmitter Port size (NPT): SAE #4 #4 #6 #12 #18 1 For viscosities of 30 cps or more, derate per pressure drop curves for higher viscosities. 2 Dependent on meter seal material, transmitter model, orientation and ambient temperature. See transmitter manual; consult factory. 3 Some materials may have different filter requirements, consult factory. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 6

7 Transmitter Specifications Analog Supply Voltage 12 Vdc (Models 29X-XXX-100) 24 Vdc (Models 29X-XXX-000) Supply Current Short Circuit Current 90 ma 12 Vdc, 45 ma 24 Vdc 21 ma 1 Output Update Rate 1 ms Resolution Ambient Temperature Range Adjustable without recalibration to any range of ± 10 Vdc Model 29X-3XX-XXX or ± 20 ma Model 29X-2XX-XXX Transmitter (Storage) 40ºC to 85ºC ( 40ºF to 185ºF) 2 Transmitter (Operation) 40ºC to 80ºC ( 40ºF to 175ºF) Maximum Temperature, Process Fluid (see page 23 for explosion proof models) (20ºC Ambient, 5V supply) 29X-X0X-XXX (Standard Model) 90ºC (195 F) 29X-X5X-XXX (High Temp Model) 225ºC (435 F) Anti-dither Range Software selectable from 1-100% of 1 revolution. 50% of a meter revolution - unidirectional - 2% bidirectional are typical default settings Signal Filtering Software selectable from 1 ms to 64 sec. time constant 1 Full step change is subject to signal damping 2 Temperature of metered fluid will affect transmitter temperature, see graph below 120 Model 29X Transmitter Series Ambient Temperature C One piece model limits High temperature 2 part pickup Process Temperature C Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 7

8 Transmitter Specifications Frequency (Pulse) Supply Voltage Supply Current 5-26 Vdc ma typical Output (5.0 Volt Supply) No Load 0.00 / 4.80 Volts (TTL and CMOS compatible) 2.5K Load to Common 0.00 / 4.60 Volts 2.5K Load to +5 Volts 0.25 / 4.80 Volts Short Circuit Current Output Impedance Rise/Fall Time 45 ma 100 Ω 0.2 μsec 1 Output Update Rate 1 ms Min/Max Frequency Resolution Ambient Temperature Range 0-60 khz pulses/rev, Single Phase pulses/rev/phase, Quadrature Transmitter (Storage) 40ºC to 85ºC ( 40ºF to 185ºF) 2 Transmitter (Operation) 40ºC to 80ºC ( 40ºF to 175ºF) Maximum Temperature, Process Fluid (see page 23 for explosion proof models) (20ºC Ambient, 5V supply) 29X-X0X-XXX Standard Model 90ºC (195 F) 29X-X5X-XXX High Temp Model 2 part model 225ºC (435 F) Anti-dither Range Software selectable from 1-100% of 1 revolution. 50% of a meter revolution - unidirectional - 2% bidirectional are typical default settings Signal Filtering Software selectable from 1ms to 250ms time constant 1 Full step change is subject to signal damping 2 Temperature of metered fluid will affect transmitter temperature, see graph on previous page Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 8

9 Do s & Don ts DO: Install bypass plumbing around the flow meter. This is useful during start up for removing dirt and air from the plumbing or when measuring fluid that may freeze inside the line and need to be remelted before it can pass through the meter. It also allows removing the flow meter for service without disabling the system. DO: Be very careful to keep parts clean during installation or teardown. A little dirt can look like a truckload compared to the 10 micron filtration requirement for series 210 Meters. DO: Clean the filter on a regular basis. DON T: Run water or aqueous solutions not approved by Max through your flow meter because of internal galling. DON T: Steam clean the meter (bypass or remove the meter if necessary). DON T: Blow down the meter with compressed air or gas because it may over-speed and damage the meter. DON T: Remove the Transmitter from the flow meter body. The transmitter is phased to the meter and a measurement error will result. Re-calibration will be necessary; see the transmitter interface software manual. DON T: Disassemble the flow meter. These are precision devices which require special tools and techniques. DON T: Turn on the pump in a system filled with material that is solid at room temperature. Wait until the material is completely melted and use the flow meter bypass valve during start up. DON T: Apply excessive differential pressure across the flow meter as it will cause internal failure (see the pressure drop curves for safe area operation). DON T: Over pressurize the meter. Maximum pressure is either 1,000 PSI (70 bar) 3,000 PSI (210 bar) or 7250 PSI (500 bar) depending on model purchased. DON T: Exceed the maximum flow rates for the material viscosity. DON T: Allow materials which solidify in air to set up in the flow meter. These may be impossible to remove. If the meter needs to be removed for repair and cannot be completely cleaned. Plug the inlet and outlet ports at once. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #0312 9

10 Installation For optimum performance, install the flow meter in one of the configurations shown below. The following items and conditions should be considered: Line and Bypass Valves: These valves allow filter cleaning or flow meter removal without completely shutting the system down and draining the lines. They also allow system start up under conditions which could damage the meter; such as: air in the lines, high temperature materials, or initial line surges. Filtration: Clearances between the flow meter piston and cylinder wall are typically to Any dirt present in the system can jam or damage the unit. A 10 micron filter (such as a Max 381 Series stainless steel unit) is generally recommended, although materials with very high viscosities may require a coarser filter. For bidirectional flow applications, use a filter on each side of the flow meter. Materials with fibrous or non abrasive particulate matter may have to be run without filters. Follow the recommendation of your Max Sales Engineer or consult our Technical Service Department. Inlet and Outlet Ports: Use the IN port as the inlet for the most predominant flow direction. Install the flow meter on the discharge side of the pump whenever possible. Excessive vibration at the meter should be avoided. High Temperatures: Use the Vertical Installation drawing. This minimizes heat transfer by convection from the flow meter to the transmitter. The transmitter is the most heat sensitive element in the system and the transmitter manual should be consulted for specific limits. An optional fluid heater block can be used on the flow meter to keep it at operating temperature during standby conditions. For substances that are solid at room temperature, the block may be required to keep the material molten and flowing through the meter. Clean Plumbing: Before installing the flow meter, clean the inside of the pipe line with compressed air or steam (especially when using new pipe). Don t use water, steam, or compressed air on the meter itself! Piping Diagram Horizontal Installation Vertical Installation FLOW VALVE 1 FILTER FLOWMETER VALVE 2 VALVE 2 VALVE 3 BYPASS Horizontal Two-Way Flow FLOW FLOWMETER VALVE 3 BYPASS VALVE 1 VALVE 2 FILTER FLOWMETER FILTER FILTER VALVE 3 VALVE 1 BYPASS FLOW Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

11 Operation Determine that the following parameters of your flow metering system are within the specifications for the specific 210 Series Meter being used: Maximum System Pressure (Specifications) Differential Pressure across meter (Pressure Drop Curves) Maximum Flow Rate (Pressure Drop Curves) Metered Fluid Temperature (Sales specification, transmitter specifications page 7) If the metered fluid is greater than 80 F (28 C) over ambient, see the High Temperature Start Up section below. With valves (#1) and (#2) closed, slowly open valve (#3) (bypass) to clear the lines of foreign particles and air. Slowly open the inlet valve (#1). Slowly open the outlet valve (#2). Completely close the bypass valve. No routine maintenance, cleaning, or lubrication of the flow meter is required. A routine filter cleaning schedule should be established. The system should be shut down if abnormal noises occur or if unusual differential pressures across the meter are encountered. High Temperature Start Up: For fluids above 150 F (82 C) based on 70 F ambient, a special procedure is required to prevent thermal shock and permanent damage to the flow meter. The warm up time is determined by the equation below: TIME (minutes) = TIME (minutes) = connector size (inches) x (operating temperature ( F)-125) 10 OR connector size (inches) x (operating temperature ( C)-52) 10 Valves (#1) and (#2) must be closed. Open the bypass valve (#3) in gradual steps until the bypass piping is stabilized at operating temperature. Open valve (#1) slightly and allow the temperature to stabilize around the flow meter. Valve (#1) can then be opened completely. Open valve (#2) slightly. The flow meter may make unusual noises or bind at this point. Leave the valve at this setting until normal meter operation occurs, at which point valve (#2) can be gradually opened all the way. Slowly close the bypass valve (#3). Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

12 Electrical Installation - Wiring Removal note: The transmitter does not need to be removed from the flow meter for any field servicing or adjustments. Normally, the flow meter and transmitter are shipped back to the factory for calibration or service as a unit. If the transmitter needs to be removed from the flow meter for installation, be sure to retighten the transmitter snugly in order to ensure proper sensor alignment. Mechanical Installation 1. The transmitter is attached to the flow meter s threaded magnet shield. Hand tighten only. (~ 3 ft-lb) 2. The transmitter lid has four thread paths. To realign the cable, remove the lid and rotate up to 180 and retighten using an alternate starting point. Tighten to compress the O-ring seal. Removal 1. Remove electrical connections 2. Unscrew transmitter, using a wrench if necessary. WARNING Installation and removal should only be facilitated by trained personnel Verify transmitter output type (ANALOG or FREQUENCY) before wiring, inappropriate wiring could result in damaging the circuit. Moisture Seal Protection On all models, the housing is designed as a liquid and vapor-tight enclosure. There are O ring seals at the lid and possibly also the base of the housing these need to be fully seated. A properly sealed transmitter will prevent the formation of damaging moisture inside the housing. Turck connector Model: The connector is sealed to the lid at the factory and is ready for use. NPT Model: To ensure a moisture-tight seal, apply appropriate sealant to the threads at installation. Wiring ANALOG The electrical connector versions are pre-wired inside the transmitter and ready to accept a mating cable (available from the factory). The liquid-tight, NPT models need to be wired during installation as shown in the table below: Analog 294 NPT model All Other Models Mating Cable Wire Color Case Ground In-lid Case Blue 3 Common 1 Com Black 4 Power * 2 V+ Brown 1 Signal Output (+) 3 Sig Grey 5 Signal Output (-)** 4 Ret White 2 Turck Pin # *Model 29X-xxx-000, 24vdc powered, Model 29X-xxx-100, 12vdc powered ** Signal output is fully isolated: If attached to a true differential input a 10K Ohm pulldown resistor should be installed between ( ) and common at the receiving end. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

13 Electrical Installation - Wiring Wiring FREQUENCY The electrical connector versions are pre-wired inside the transmitter and ready to accept a mating cable (available from the factory). The liquid-tight, NPT models need to be wired during installation as shown in the table below: Frequency Single Phase 294 NPT All Other Mating Cable Turck model Models Wire Color Pin # Frequency Case Ground In-lid Case Blue 3 Single Phase Common 1 Com Black 4 Wiring Power 5-26 Vdc 2 V+ Brown 1 Pulse Output 3 Ph A White 2 N/A NC Grey 5 * A current sinking device produces an output pulse which is the opposite of a sourcing device. A positive DC voltage must be applied to the wire running between PhA and your PLC. When the output is triggered, this voltage will be grounded to zero volts. Note: use a 5k ohms resistor to limit the current flow in the signal line. Current Sinking* Wiring (models 29X-6XX) V+ 5k 0V V+ Out Transmitter PLC Digital Input Frequency Quadrature 294 NPT model All Other Models Mating Cable Wire Color Case Ground In-lid Case Blue 3 Common 1 Com Black 4 Power 5-26 Vdc 2 V+ Brown 1 Output Phase A 3 Ph A White 2 Output Phase B 4 Ph B Grey 5 Turck Pin # Turck Connector Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

14 Troubleshooting Trouble Corrective Action No Flow through meter or high pressure drop across meter Solidified material blocking rotation Heat meter to melt material Debris blocking rotation Remove plumbing base, inspect crankshaft and piston rods for damage. If intact flush the inside of the meter and try to work pistons free by rocking the crankshaft back and forth gently with a small rod or retracted pen Meter broken If you find damaged parts in the meter, return the meter to the factory for repair Fluid is passing through the meter, but there is no indication of flow Improper hook-up of transmitter Meter not turning Indicated flow does agree with expected readings Air in the line Verify that DC power is present at the PCA. Use a multimeter to measure the transmitter output independent of the display or PLC Remove transmitter from meter and place a paper clip against the magnet shield. Clip should be drawn to magnet inside of the meter and move with the meter s rotation Air bubbles displace the meter just as a liquid would. If you are over-reporting, verify that there is no air in the lines. Indicator not calibrated properly Excessive reverse flow in system Verify the K-Factor for the meter in use and compare this value to the setting used in the display. Max transmitters have anti-dither functions which can buffer up to 1 revolution of reverse flow. An incorrect flow total can be reported if the pumping causes a flow and ebb of greater than 1 meter revolution. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

15 213 Piston Flow Meter 1.93 (49mm) 1/2 NPT 2.61 SQ (66mm) 1.5 SQ (38mm) (29mm) in out 5.47 (139mm) 5.98 (152mm) BOTTOM VIEW MODEL 213 WITH INDUSTRIAL HOUSING mounting holes 10-32NF (6) places * SAE base adds 0.375" (10mm) to height and 0.5" to face to face dimensions (16mm) MODEL 213 WITH EX-PROOF HOUSING not to scale 0.65 (17mm) EX-PROOF HOUSING TOP VIEW TYPICAL PRESSURE DROP (Delta P versus Flow rate for various viscosities) 35 Pressure Drop (psi) bar 1.5 bar 1 bar 0.5 bar Expected Failure Area Intermittent Duty Area Continuous Duty Area 3000 cp 1000 cp 300 cp 100 cp 30cP 3 cp Flow Rate (cc/min) Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

16 P002 Piston Flow Meter 3.62 (92mm) 5.51 (140mm) 3.62 (92mm) 5.98 (152mm) Inlet port locations MODEL P002 WITH INDUSTRIAL HOUSING TRANSMITTER MODEL P002 WITH EX-PROOF HOUSING TRANSMITTER BOTTOM VIEW mounting holes 10-32NF (4) Places not to scale EX-PROOF HOUSING TOP VIEW 0.65 (17mm) TYPICAL PRESSURE DROP (Delta P versus Flow rate for various viscosities) bar Pressure Drop (psi) bar 1 bar Expected Failure Area Intermittent Duty Area Continuous Duty Area 3000 cp 1000 cp 300 cp 100 cp 30cP bar 3 cp Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

17 214 Piston Flow Meter 1.93 (49mm) 1/2 FNPT 6.3 (160mm) 6.61 (168mm) 2.57 (65mm) MODEL 214 WITH INDUSTRIAL HOUSING TRANSMITTER SQ (124mm) mounting holes 1/4-20NC (6) places 2.57 (65mm) (29mm) MODEL 214 WITH EX-PROOF HOUSING TRANSMITTER (54mm) in out 3.00 SQ (76mm) BOTTOM VIEW not to scale EX-PROOF HOUSING TOP VIEW 0.65 (17mm) TYPICAL PRESSURE DROP (Delta P versus Flow rate for various viscosities) Pressure Drop (psi) bar bar bar bar 5 Expected Failure Area Continuous Duty Area Intermittent Duty Area 3000 cp k 3k 5k 10k Flow Rate (cc/min) 1000 cp 300 cp 100 cp 30 cp 3 cp Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

18 215 Piston Flow Meter 1.93 (49mm) 1/2 FNPT 7.48 (190mm) 3.93 (100mm) 7.99 (203mm) 3.93 (100mm) MODEL 215 WITH INDUSTRIAL HOUSING TRANSMITTER 4.95 SQ (125mm) mounting holes 5/16-18NC (6) places 2.0 (51mm) MODEL 215 WITH EX-PROOF HOUSING TRANSMITTER 7.88 SQ (200mm) in out (54mm) not to scale 0.65 (17mm) BOTTOM VIEW EX-PROOF HOUSING TOP VIEW TYPICAL PRESSURE DROP (Delta P versus Flow rate for various viscosities) Expected Failure Area 35 Intermittent Duty Area 30 2 bar Pressure Drop (psi) bar 1 bar 0.5 bar Continuous Duty Area 3000 cp 1000 cp 300 cp 100 cp 3 cp k 3k 5k 10k 20k 30k 50k Flow Rate (cc/min) Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

19 216 Piston Flow Meter 1.93 (49mm) 1/2 FNPT 8.94 (227mm) 9.45 (240mm) (123mm) MODEL 216 WITH INDUSTRIAL HOUSING TRANSMITTER 7.0 SQ (178mm) mounting holes 3/8-16NC ^t (6) places 5.39 (137mm) 3.0 (76mm) MODEL 216 WITH EX-PROOF HOUSING TRANSMITTER 3.00 (76mm) in out 9.5 SQ (241mm) BOTTOM VIEW not to scale EX-PROOF HOUSING TOP VIEW 0.65 (17mm) Pressure Drop (psi) TYPICAL PRESSURE DROP (Delta P versus Flow rate for various viscosities) bar bar bar bar 5 Expected Failure Area Intermittent Duty Area Continuous Duty Area 3000 cps 1000 cps 300 cps 100 cps 3 cps Flow Rate (L/min) Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

20 Contact for Repairs & Calibration Services The Max 210 Meter Series is not designed for user repair and all such work should be done at the factory or under the direct supervision of the Max Technical Service Department. Unauthorized repair work may damage the meter and will void the product warranty. Please make note of model and serial numbers on the flow meter before calling the factory. A return goods authorization number will be issued if the flow meter has to be sent back for repair. Max Machinery, Inc. Phone: A Healdsburg Ave Fax: Healdsburg, CA Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

21 Installation Instructions Hazardous Locations Applies only to Max Model EX295 and EX296 Transmitters with explosion proof certification. These transmitters provide protection via a flame proof housing and through current limiting to the circuit board: Must wire with a class 2 power supply (See table for loads page 23). Meets US and Canadian Haz-Loc classifications, Class I, Div 1, Groups C and D, Tx As well as ATEX/IECEx II 2 G Ex d IIB Tx Gb Certification numbers Demko 11 ATEX X and IECEx UL X Mechanical Installation The outer housing freely rotates to align the conduit hole with your electrical connection point. If the transmitter is already attached to the meter skip to step 5: 1. To attach the transmitter to the flow meter, apply a small amount of low strength thread adhesive, such as Loctite, on the threads and screw the transmitter onto the exterior threads on top of the flow meter. 2. Locate the locking set screw below the conduit hole and using a 3/32" hex wrench remove it. Rotate the outer housing clockwise until the screw hole lines up with a hole in the inner housing. (Inserting an Allen key into the threaded hole while rotating the housing can help in finding the point of alignment.) Now re-insert the set screw and handtighten it to lock the inner and outer housing together. 3. Finish tightening the transmitter onto the meter by applying a torque of 2 to 5 ft.-lb. (2.7 to 6.78 N-m). 4. Now back out the locking set screw until it is flush with the surface of the transmitter. 5. The housing can now be rotated to align the conduit port in the desired direction. 6. To remove the lid for wiring, remove the safety screw at the edge of the lid and then remove the cap using a 3/8 socket drive. 7. Install conduit. Within 18 of the housing install a conduit stop and fully seal with potting compound. 8. Connect wires to terminal block as shown below, using 2 mm screw driver. 9. A case ground terminal is provided internally, but if grounded metallic conduit is not used, then one of the external grounds below the conduit fitting must be used. For metric- use either a 6 or 8 mm long stainless steel M5 x 8.0 bolt. For inch measurement use either a 1/4 or 5/16 long stainless steel #10-32 bolt. 10. Reattach cap and tighten to 40 in-lbs to seal enclosure. Install safety lock screw at the edge of the lid and hand tighten. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

22 Removal from Flow Meter Note: the transmitter does not need to be removed from the flow meter for any field servicing or adjustments. Normally, the flow meter and transmitter are shipped back to the factory for calibration as a unit. 1. Remove the locking screw at the edge of the lid and then remove the cap using a 3/8 socket drive. 2. Disconnect wires at the terminal block and remove wiring conduit from transmitter. 3. Locate the locking set screw below the conduit hole and remove it. Rotate the outer housing clockwise until the screw hole lines up with a hole in the inner housing. (Inserting an Allen key into the threaded hole while rotating the housing can help in finding the point of alignment.) Now re-insert the set screw and hand-tighten it. This will lock the inner and outer housing together. 4. Unscrew the transmitter, using a strap wrench if necessary. Moisture Protection The housing is a liquid and vapor-tight enclosure certified to IP66. There is an O-ring seal at the lid of the housing the seal needs to be fully seated to provide moisture protection and achieve flameproof specifications. About Explosion proof installations For the Model 295 and 296 to fully adhere to the HazLoc certifications, the wiring must meet the appropriate codes. (Use of a wire conduit does not make the installation explosion proof read below.) The transmitters which are certified for use in hazardous locations require the use of a 1/2 NPT hazardous location rated conduit fitting. The wiring conduit must be sealed with a conduit stop within 18 of the device. If you choose to use exposed cables, cable seals must be used with sealing fittings and the wiring must be an approved armored cable. Electrical Installation Use wiring that is between 20 and 28 gauge and rated to at least 5 C above the maximum ambient temperature, and rated to at least 80% of the maximum fluid temperature. Pulse Output Wiring Circuit Board Label Mating Cable Wire Color** Analog Output Wiring Two Part Transmitter End Labels Wire Color Case ground Case Blue Case Com Brown Common Com Black Com Rb Grey Power* V+ Brown V+ Ra White Signal Output (+) PHA White RET 5V Black (Quad only) PHB Grey SIG Case Blue * Consult Table ** (Color codes are typical for Max Machinery wired devices) Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

23 Electrical Requirements The device must be powered with a Class 2 power supply. Electrical loads are specific to model number s: Part # s Transmitter Type Electrical Input Requirements Output Electrical Requirements 29x-0xx- Pulse Output Transmitter 5-28Vdc 40mA Single Line 0-5V 10mA (500 ohm pulldown or greater) 29x-1xx-0xx Quadrature Output Transmitter 5-28Vdc 50mA 2 Lines 0-5V 10mA each (500 ohm pulldown or greater) 29x-2xx- ma Output Transmitter 24-28Vdc 50mA Isolated current loop, max 500 ohms in line, 12Vdc max 29x-2xx-1xx ma Output Transmitter (12Vdc) 12-15Vdc 100mA Isolated current loop, max 500 ohms in line, 12Vdc max 29x-3xx- V Output Transmitter (24Vdc) 24-28Vdc 50mA Isolated voltage loop, min 1000 ohms across line, 12Vdc 29x-3xx-1xx V Output Transmitter (12Vdc) 12-15Vdc 100mA Isolated voltage loop, min 1000 ohms across line, 12Vdc 29x-6xx- 0xx Level Shifter Pulse Output Transmitter 5-28Vdc 30mA Single line, current sinking, max 28Vdc, max 25mA Temperature Classification Temperature class is a function of fluid temperature used in the meter and ambient temperature. For hot fluids, meter must be insulated and transmitter must be left exposed. All transmitters are rated to operate within the BLUE region, but only the remote sender unit variants (295-x5x-xxx) can operate up to the maximum temperatures shown in the chart. Consult factory for installation details when operating near temperature limits. Temperature class chart for all explosion proof variants: Ambient Temperature C 75 T6 T5 T Fluid Temperature C Note: Consult factory to determine the functional temperature limit of your transmitter variant. Temperature class ratings do not correspond with the continuous duty area for the electronics within the transmitter. A complete description of your transmitter may be found on the Max Machinery web site ( Individual specification sheets and product family manuals are also available for viewing or downloading. Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #

24 EC Declaration of Conformity We, Max Machinery Inc. declare as manufacturer under our sole responsibility that the product series 295/296 Explosion Proof Flow Transmitter is in conformity with the provisions of the European Community Directives as shown below. Applicable Series: Part numbers of the format 295-xx1-x00 and 296-xx1-x00 where x does not affect conformity to the standards. Low Voltage Directive 2006/95/EC EMC Directive 2004/108/EC EN :2005 Electromagnetic Immunity EN :2007 Electromagnetic Emission ATEX Directive 94/9/EC designed and manufactured in accordance with Annex II of the Atex Directive EN :2009 Explosive atmospheres general requirements (Note: no routine verification and tests are required by clause 27) EN :2007 Protection by flameproof enclosures type d Designation: 0539 II 2 G Ex d IIB Tx Gb EC Type examination certificate DEMKO 11 ATEX X provided by UL International DEMKO A/S NB Number: 0539 P.O. Box 514, Lyskaer 8, DK-2730 Herlev, Denmark Product quality assurance notification #11 ATEX Q provided by UL Demko Production control done to ISO 9001:2008, certificate #C Bryan Snyder Engineering Manager May 24, 2011 Max Machinery Inc. 33A Healdsburg Ave. Healdsburg, CA USA (707) Max Machinery, Inc. 210 Series User Manual Copyright 2012 Rev. #