Diaphragm Metering Pumps

Transcription

1 DATA BOOK DME/DMS, DMM Diaphragm Metering Pumps

2 DME/DMS TECHNICAL DATA BOOKLET 1. General description, DME/DMS, DMM 1.1 Digital Dosing, DME/DMS DMM Performance range, DME/DMS, DMM Product data, DME/DMS, DMM 2.1 Product name Construction, DME/DMS 3.1 DME DMS Functions, DME/DMS Capacity control Settings and operation Setting range Start/stop Priming/venting Level control Indicator lights and alarm output Fieldbus communication Menu Operating modes, DME/DMM 5.1 Manual control Pulse control Analog control Timer-batch control Pulse-batch control Anti-cavitation Calibration Counters Setup Language Max. capacity Input setup Units Monitor setup Lock Default Return Performance curves, DME/DMS 6.1 DME curves DMS curves Technical Data, DME/DMS 7.1 DME technical data DMS technical data Dimensions, DME/DMS 8.1 Dimensions Construction, DMM 9.1 Sectional drawing, DMM 4 to Sectional drawing, DMM 160 to Functions Capacity control, DMM DMM-AR DMM-B Settings and operation, DMM 10.1 Stroke length Control panel, DMM-AR Start/stop Maximum stroke frequency Alarm output Operating modes Performance curves, DMM Mechanical data, DMM 60 Hz Dimensions Accessories, DME/DMS, DMM Overview Installation kit Cable and plug Tubing Foot valve Injection valve Multifunction valve Dosing monitor Flow indicator Pump connection Adaptor connections Rigid suction line Level control unit Valve assembly Pulsation dampener Priming aid Tank Hand mixer Electric agitator Wall bracket Water meter Submittal Data Appendix 2

3 TECHNICAL DATA BOOKLET DME/DMS 1. General description GRUNDFOS dosing pumps install easily and offer user-friendly operation. The pumps ensure high accuracy as well as long life and flexibility. As they come in various materials, the pumps are resistant to most chemicals. The varied pump range offers capacities from 0 to 313 gph as well as a number of control options, ranging from manual control to fieldbus control. Thanks to the very large range of options, GRUNDFOS dosing pumps are well suited for dosing many different liquids in applications such as water, wastewater, swimming pool and process water treatment, and washing systems. 1.1 Digital dosing TM DME and DMS Fig. 1 Fig. 2 Grundfos' DME and DMS diaphragm pumps are the cornerstones of the Digital Dosing trademark. They combine all the features and functions of traditional dosing pumps, and make dosing so easy that precision will be something you can take for granted. The DME/DMS series covers an operating range of 0 to 12.6 gph at up to 261 psi counterpressure. The feature which makes Digital Dosing possible is continuous, direct contact between the motor and the diaphragm. The diaphragm is screwed into a crank shaft which is driven by the motor via a belt drive. This means that in contrast to traditional dosing pumps the position and, in the case of DME, the speed of the diaphragm is controlled right throughout every discharge/suction cycle. The fundamental difference between DME and DMS TM TM TM xxxx pumps is the type of electronically controlled motor used to drive them. In the DMS series, a synchronous motor varies the stroke frequency to meet demand. In DME pumps, a stepper motor unique to Grundfos dosing pumps varies the stroke speed. The extended discharge phase of the DME gives better, more even, mixing. The stepper motor in the DME opens up a number of exciting functions which will make your work easier and your results better. Grundfos' unique anti-cavitation function for high viscosity liquids is also based on the variable speed capacity. For both pump types, the dosage can be regulated manually, via analog signal (4-20 ma) or external pulses (ml/pulse only). All pumps in the Digital Dosing range operate at maximum stroke length at all times so there is no need for adjustments. And because the stroke length is always full, the pump is less sensitive to gases released from liquids such as sodium hypochlorite and hydrogen peroxide. Any gas present is discharged immediately, maintaining precision with even the most difficult degassing liquids. A direct consequence of the innovative drive principle is that Digital Dosing pumps have high turn-down ratios and are therefore just as precise when dosing in very small amounts at at 100%.This means that compared with solenoid dosing pumps, the entire range from 0 to 12.6 gph is covered by only five Grundfos models. Benefits: Fewer Models cover most needs Push-button display with easy-to-use menu Side or front-mounted control panel Counters - accumulated number of strokes - accumulated number of operating hours - accumulated times the pump is switched on High turndown ratio - the turndown ratio for a DME is 1: DMS has a turndown ratio of 1:100. Switch-mode power supply (DME only) ( V; Hz) Integrated air bleed valve 3

4 GENERAL INFORMATION DME/DMS, DMM 1.2 DMM Fig. 3 DMM-B DMM-AR Grundfos DMM mechanical diaphragm dosing pumps are solid pumps with a proven track record of reliability in a wide variety of applications. In the context of the full range of Grundfos dosing pumps, the DMM complements the DME and DMS pumps TM TM with its high through-put. DMM pumps can dose up to 314 gph at up to 145 psi. Together with the complete range of pump accessories, DMM can satisfy all your needs for high capacity dosing. An external, fan-cooled motor, a single-stage worm gear and an optional control unit combine to offer you a high level of control and flexibility over your dosing system. A long-life, PTFE-coated diaphragm and safe, reliable discharge and suction ball valves meet the highest standards in the dosing field. Spring loaded check valves can be fitted for high viscosity liquids. The dosing head is designed for maximum resistance to and protection from corrosive liquids. A separation chamber behind the diaphragm insulates the pump unit from flooding in the unlikely event of a diaphragm failure. The dosing head is available in stainless steel or polypropylene. The DMM-AR pump is equipped with an electronic motor control unit and a clear operating panel and display. Both the stroke length and frequency can be varied. On the DMM-B pump, only the stroke length is variable. See the complete performance range below. 1.3 Performance range DME, DMS and DMM, 60 Hz p [psi] DME, DMS, DMM 60 Hz DME DME DMM-B DMM-AR DMS DME DMM-B Q [US GPH] TM

5 DME/DMS, DMM GENERAL INFORMATION 2. Product data 2.1 Product name GRUNDFOS dosing pumps, types DME, DMS and DMM. Note that the type key cannot be used as product configuration tool, as all combinations are not possible. Codes Type designation Example Type range Maximum capacity [l/h] Maximum pressure [bar] Control variant Dosing head material Gasket material Valve ball material Control panel position Voltage Valves Connection suction/discharge Power plug DME 2-18 A - PP / E / C - F RR B Type key Example A - PP / E / C - F G F Control variant A Standard AR Standard + alarm relay AP Standard + Profibus AG Standard + GENIbus B Basic Dosing head material PP Polypropylene PV PVDF SS Stainless steel Gasket material E EPDM V FKM Valve ball material C Ceramic SS Stainless steel 316 AISI Control panel position F Front-fitted S Side-fitted X No control panel Supply voltage 6 1 x 230 V, 60 Hz 2 1 x 120 V, 60 Hz 3 1 x V, Hz 5 3 x 230/460 V, 60 Hz Valves 1 Standard valve 2 Spring-loaded valve Connection suction-discharge T Tubing 0.125"/0.25" R Tubing 0.25"/0.375" S Tubing 0.375"/0.5" V Threaded NPT 1/4"* Y Threaded NPT 3/8"* X Threaded NPT 1/2"* Z Threaded NPT 1"* Mains plug B USA, Canada 120 V X Power plug * On DMS/DME, on stainless steel pumps only. 5

6 CONSTRUCTION DME/DMS 3. Construction 3.1 DME The DME pump is a motor-driven diaphragm metering pump consisting of the following main components: Dosing head: Designed with a minimum of clearance space to optimize the priming and deaerating capabilities. The dosing head has built-in valve casings. Valves: Double-ball suction valve and single-ball discharge valve. Spring-loaded valves are available as an option. Vent valve: For priming and for venting (when pumping degassing liquids). With connection for 1/8" x 1/4" (0.125" x 0.25") tubing. Connections: Sturdy and easy-to-use connections for various sizes of tubing or pipe thread. Diaphragm: PTFE-coated, textile-reinforced EPDM diaphragm designed for long life. Backplate: With separation chamber, safety diaphragm and drain hole. Drive unit: With diaphragm connecting rod, crank, belt-drive and stepper motor, all mounted on a sturdy frame. Cabinet: Containing drive unit, electronics, control panel and various electrical connections. 3.2 DMS The DMS pump is a motor-driven diaphragm dosing pump consisting of the following main components: Dosing head: Designed with a minimum of clearance space to optimize the priming and deaerating capability. The dosing head has built-in valve casings. Valves: Double-ball suction valve and single-ball discharge valve. Spring-loaded check valves are available as an option. Vent valve: For priming and for venting (when pumping degassing liquids). With connection for.0125" x.25" tubing. Connections: Sturdy and easy-to-use connections for various sizes of tubing or pipe thread. Diaphragm: PTFE-coated, textile-reinforced EPDM diaphragm designed for long life. Backplate: With separation chamber, safety diaphragm and drain hole. Drive unit: With diaphragm connecting rod, crank, belt-drive and synchronous motor, all mounted in a sturdy frame. Cabinet: Containing drive unit, electronics, control panel and various electrical connections (DMS-A). Cabinet Connections Vent valve Dosing head Diaphragm Drive unit Valves Drain hole Drive unit Fig. 8 6

7 DME/DMS FUNCTIONS 4. Functions, DME, DMS DME variant A DMS variant B TM TM TM Internal stroke frequency control Internal stroke speed control Capacity setting in liters, milliliters or US gallons Display with background light and soft-touch buttons Easy set-up menu with language options On/off button Priming button (temporary maximum speed) Green indicator light for operating indication Red indicator light for fault indication Lock function for control panel Side-fitted option Manual control Pulse control Analog control 0/4-20 ma Timer-based batch control Pulse-based batch control Dosing monitoring Dual-level control Calibration of pump to actual installation Anti-cavitation (reduced suction speed) Capacity limitation Counters for strokes, operating hours and power on/off Fieldbus communication (variants AP and AG) Switch-mode power supply Input for pulse control Input for analog 4-20 ma control (0/4-20 ma for DMM) Input for dual-level control External start/stop input Alarm relay output (variant AR) Without background light. Capacity control Control panel Operating modes Functions Power supply Inputs/outputs 7

8 CAPACITY CONTROL DME/DMS 4.1 Capacity control DME The electronically controlled stepper motor of the DME pumps provides optimum control of the stroke speed. As shown in the figure below, the duration of each suction stroke is constant while the duration of each discharge stroke varies according to the capacity set, resulting in optimum discharge flow in any operating situation. The advantages are as follows: In order to obtain optimum accuracy, priming and suction, the pump always operates at full stroke length, irrespective of the capacity set. A capacity range of 1:1000 (turndown ratio) Even and constant dosing ensuring an optimum mixing ratio at the injection point. Significant reduction of pressure surges, preventing mechanical stress on diaphragm, tubes, connections and other dosing parts exposed to leakage and wear. The installation is less affected by suction piping. Control of suction stroke makes for easier dosing of highly viscous and gas-containing liquids. The optimum dosing control shown below applies to all operating modes. Capacity setting 100% Discharge Duration Suction Discharge 50% Duration 10% Suction Discharge Suction Duration TM Fig DMS The electronically controlled synchronous motor of the DMS pumps offers almost the same advantages as those of DME pumps. As shown in the figure below, the suction and discharge stroke speeds are constant while the stroke frequency varies according to the capacity set. The sinusoidal movement of the diaphragm provides the following advantages: In order to obtain optimum accuracy, priming and suction, the pump is always operating at full stroke length, irrespective of the capacity set. Full stroke length ensures evacuation of pump head during discharge stroke, helping where gasing or precipitating fluids are a problem. A capacity range of 1:100 (turndown ratio). Reduction of pressure surges, preventing mechanical stress on diaphragm, tubes, connections and other dosing parts exposed to leakage and wear. The installation is less affected by long suction and discharge lines. Easier dosing of highly viscous and gas-containing liquids. Capacity setting 100% Discharge Duration Suction Discharge 50% Duration 10% Suction Discharge Suction Duration TM Fig. 16 8

9 DME/DMS SETTINGS AND OPERATION 4.2 DME and DMS Setting and operation of DME and DMS pump functions are made on the control panel. LCD display Navigation/settings, see section 4 ml/h Navigation/ settings, see section 4 Maximum capacity (priming), see section 4 100% Menu, see section 4 Green indicator light, see section 4 On/off button, see section 4 Red indicator light, see section 4 Power connection Cable entry for alarm relay/bus. Control variants AR, AP and AG, see section 4. (optional) M12 connection for pulse/analog input, see section 4. M12 connection for level control, see section 4. TM Fig. 21 9

10 SETTINGS AND OPERATION DME/DMS Setting range The pumps are factory-calibrated at 50% of rated pressure. DME-2 and DMS-2 are, however, calibrated at 5 bar. Water is used as pumped liquid during calibration. When the "DEFAULT" function is chosen in the menu (resets all pump settings), the pump will return to its original factory-calibration value. As this value allows for the individual pump tolerances, it is unique for each individual pump. Pump DME 2 DME 8 DME 12 DME 19 DME 48 DMS 2 DMS 4 DMS 8 DMS 12 Min. capacity [ml/h] Max. capacity [l/h] 2.5 (1.8*) 7.5 (5.6*) 12.0 (9*) 18.5 (14.5*) 48.0 (37*) Max. capacity [gph].66 (0.47*) 1.98 (1.47*) 3.17 (2.37*) 4.88 (3.83*) (9.77*) * The figures in brackets indicate the maximum capacity when the anti-cavitation function is activated (DME only) Start/stop of pump The pump can be started/stopped in four different ways: by means of one of the external options (analog or pulse) locally on the pump control panel by means of an external on/off switch connected to the start/stop input by switching on/off the electrical supply. Note: All settings are stored if the pump is switched off Priming/venting of pump The DME and DMS dosing pumps are provided with an integrated vent valve to aid in priming. The pump control panel incorporates a 100% button. Press this button if the maximum pump capacity is required over a short period, e.g. during start-up. When the button is released, the pump automatically returns to the previous operating mode. Note: When the buttons 100% and are pressed simultaneously, the pump can be set to run for a specific number of seconds at maximum capacity. The remaining number of seconds will appear in the display. The maximum value is 300 seconds. Press to stop the pump before the set time has passed Level control Fig. 23 The pump can be fitted with a level control unit for monitoring of the chemical level in the tank. The pump can react to two level signals. The pump will react differently, depending on the influence on the individual level sensors. Level sensors Upper sensor activated Lower sensor activated * Control variant AR only. Pump reaction Red indicator light is on. Pump running. Alarm relay activated.* Red indicator light is on. Pump stopped. Alarm relay activated.* TM Note: Refer to the Installation and Operating instruction manual. DME and DMS Vent valve TM Fig

11 DME/DMS SETTINGS AND OPERATION Indicator lights and alarm output The green and red indicator lights on the pump indicate operation or fault. In control variant AR, the pump can activate an external alarm signal by means of a built-in alarm relay. The alarm signal is activated by means of an internal potential-free contact. The functions of the indicator lights and the built-in alarm relay appear from the table below: Condition Green indicator light Red indicator light Display Alarm output Fieldbus communication DME only The pump is available with a built-in module for bus communication with GENIbus (variant AG) or Profibus (variant AP) systems. These modules enable remote monitoring and setting via the fieldbus system. Pump running On Off Normal indication NC NO C Set to stop Flashing Off Normal indication NC NO C Pump fault Off On EEPROM Supply failure Off Off Off Pump running, low chemical On On level *1 Normal indication NC NO C NC NO C NC NO C Empty tank *2 Off On Normal indication NC NO C Analog signal < 2 ma The pump is not dosing enough according to the signal from the dosing monitor *3 Off On Normal indication On On NC NO C NC NO C Overheated Off On MAX TEMP NC NO C * 1.) Control variant AR only. * 2.) Requires connection to level sensors. * 3.) Requires dosing monitor function activated and a dosing monitor device connected to the pump. 11

12 MENU DME/DMS Menu The DME and DMS dosing pumps feature a userfriendly menu which is activated by pressing the button. During start-up, all texts will appear in English language, but different languages can be chosen, see section 38. The example shown below is for a DME pump. DME TM DMS-A DMS-B 12

13 DME/DMS MENU 5. Operating modes 5.1 Manual control 5.2 Pulse control TM TM Fig. 25 The pump is dosing constantly according to the quantity set by the buttons and. It automatically changes over between the measuring units. Setting range, DME: U.S. GALLONS METRIC DME 2 DME 8 DME 12 DME 19 DME (.47*) gph (1.47*) gph (2.37*) gph (3.83*) gph (9.77*) gph 2.5 ml/h 7.5 ml/h 12 ml/h 18.5 ml/h 48 ml/h 2.5 (1.8*) l/h 7.5 (5.6*)l/h 12 (9*) l/h 18.5 (14.5*) l/h 48 (37*) l/h * The figures in brackets indicate the maximum capacity when the anti-cavitation function is activated. Setting range, DMS: DMS 2 DMS 4 DMS 8 DMS 12 U.S. GALLONS gph 1.05 gph 1.98 gph 3.17 gph METRIC 2.5 ml/h 40 ml/h 75 ml/h 120 ml/h If the pump is operating with very high viscocities, the maximum capacity can be reduced after the calibration of the pump l/h 4 l/h 7.5 l/h 12 l/h Fig. 27 DME and DMS-A only The pump is dosing according to an external pulse signal, i.e. a water meter with pulse output or a controller. There is no direct relation between pulses and pump strokes. The pump automatically calculates its optimum speed to ensure the required quantity is dosed for each pulse. The quantity to be dosed is set in ml/ pulse only. The pump adjusts its speed and/or stroke frequency on the basis of two factors: frequency of external pulses and the set quantity per pulse. When the quantity per pulse has been set and the button is pressed, the display will show the actual capacity according to above factors Set value in ml/pulse Set value Actual capacity in ml/pulse or l/h Fig. 26 Fig

14 ANALOG CONTROL DME/DMS Setting range: Pump Min. quantity [ml/pulse] Max. quantity [ml/pulse] DME DME DME DME DME DMS DMS DMS DMS Analog 4-20 ma control DME and DMS-A only The pump is dosing according to an external analog signal. The dosing capacity is proportional to the input value in ma (default): 4 ma = 0%. 20 ma = 100%. 20-4: 4 ma = 100%. 20 ma = 0%. 0-20: 0 ma = 0% 20 ma = 100% 20-0: 0 ma =100% 20 ma = 0% The maximum capacity limitation, see section 5.9.2, will influence the capacity. 100% correponds to the maximum capacity or the set capacity limitation. If the set quantity per pulse multiplied by the pulse frequency exceeds the pump capacity, the pump will run at full capacity. Excess pulses will be ignored, and the "actual capacity" display will flash. Capacity [%] ma signal Input signal [ma] TM Fig. 29 Selection of analog operation mode: Actual capacity according to 4-20 ma signal Fig. 30 If 4-20 ma or 20-4 ma is selected and the signal falls below 2 ma, the pump will indicate fault. This situation occurs if the connection is interrupted, for instance if the wire is damaged. 14

15 DME/DMS TIMER-BATCH CONTROL 5.4 Timer-based batch control DME only The pump is dosing the set quantity in batches at maximum capacity or the set capacity limitation. The time until the first dosing, NX, and the following sequences, IN, can be set in minutes, hours and days. The maximum time limit is 9 days, 23 hours and 59 minutes (9:23:59). The lowest acceptable value is 1 minute. During operation, NX will allways count down from IN to Zero. In this way, the remaining time to next batch can allways be read. IN must be higher than the time required to perform one batch. If IN is lower than the time required for performing a batch, the next batch will be ignored. Quantity per batch Set quantity per batch Set IN value in minutes NX IN Set IN value in hours Fig. 31 The internal timer continues even if the pump is stopped by means of the on/off button, empty tank or stop signal. The internal timer runs in 1-minute cycles, meaning that if NX, for instance, is set to 20 minutes, the first batch will be initiated after 19 to 20 minutes. In case of supply failure, the set dosing quantity, the IN time and the remaining NX time are stored. When the supply is reconnected, the pump will start up with the NX time at the time of the supply failure. This way the timer cycle will continue, but it will be delayed according to the time of the supply failure. Setting range: Pump Min. quantity [ml] Max. quantity Gal. [l] DME [5] DME [15] DME [24] DME [37] DME [96] The values are approximately values. The minimum quantity will always correspond to one pump stroke at the given calibration value. Set IN value in days Set NX value in minutes Set NX value in hours Set NX value in days Fig

16 PULSE-BATCH CONTROL DME/DMS 5.5 Pulse-based batch control DME only The pump is dosing the set quantity in batches at maximum capacity or the set capacity limitation. The quantity is dosed every time the pump receives an external pulse. If the pump receives new pulses before the batch is completed, these pulses will be ignored. Setting range: Pump Min. quantity [ml] Max. quantity Gal. [l] DME [5] DME [15] DME [24] DME [37] DME [96] The values are approximately values. The minimum quantity will always correspond to one pump stroke at the given calibration value. Set value per batch Fig. 33 Quantity per batch Pulse Pulse TM Fig

17 DME/DMS ANTI-CAVITATION 5.6 Anti-cavitation DME only The DME pump features an anti-cavitation function. When this function is selected, the pump's suction stroke characteristic is changed. The use of anti-cavitation function is recommended: when pumping liquids of high viscosity, when pumping degassing liquids, in the case of a long suction line or in the case of a high suction lift. The maximum capacity is reduced when this function is selected, see below. DME 2 DME 8 DME 12 DME 19 DME gph 1.47 gph 2.37 gph 3.83 gph 9.77 gph [1.8 l/h] [5.6 l/h] [9 l/h] [14.5 l/h] [37 l/h] Operating display Fig

18 CALIBRATION, COUNTERS DME/DMS 5.7 Calibration, DME and DMS The pump can be calibrated after installation to ensure that the correct value (ml/h or l/h) appears in the display. Several parameters may influence the pump performance, the most important being: system counter pressure, pump suction lift, and viscosity of liquid. The system counter pressure is the pressure against which the pump must work, typically the pressure at the injection point. The suction lift is the geodetic height from a tank to the injection point. If e.g. the viscosity is very high, the calibration of the pump can mean that the pump cannot reach its maximum performance. DME and DMS pumps can be calibrated down to a value which reduces the maximum capacity with 50%. Total dosed quantity 5.8 Counters The pump can display "non-resettable" counters for: "Quantity" Accumulated dosed volume in litres or US gallons. "Strokes" Accumulated number of dosing strokes. "Hours" Accumulated number of operating hours (power on). "Power ON" Accumulated number of times the mains supply has been switched on. The counter values are updated when a button is activated, i.e. they always show the correct value. The pump calculates the dosed volume by multiplying the number of strokes, with the calibration factor for one pump stroke, at the given time. The stroke counter automatically changes to exponential recording when the number exceeds The largest displayable value is E3, i.e. almost one billion strokes. The time counter value is updated every two hours. If the pump is controlled by switching off the power, the value may thus not be updated. The "POWER ON" counter will, however, record the number of starts. The "POWER ON" counter value is updated every time the pump is switched on. Total number of strokes Total number of operating hours Total number of starts Operating display Fig

19 DME/DMS SETUP, LANGUAGE 5.9 General description The setup submenus allow for setting or resetting pump basic functions Language The display text can be displayed in one of the following languages: English German French Italian Spanish Portuguese Dutch Swedish Finnish Danish Czech Slovak Polish Russian Fig. 42 Operating display Operating display Operating display without changes 19

20 MAX. CAPACITY DME/DMS Maximum capacity limitation DME only 1. This function allows the pump's maximum capacity to be changed. 2. By means of this function, a large pump can be set to act as a much smaller pump. Together with the 1:1000 capacity range, the purposes of this function are: To improve the dosing of gas-containing liquids. The reason for this is that the displaced (1) volume is much larger in relation to the non-displaced volume (2) in a large pump than i in a small pump. To utilize the pump s smooth and even dosing characteristics at low capacities, to achieve - better chemical mixing, - better dosing through long discharge lines and - better dosing of high-viscous liquids. Example: A DME 48 is set to analog 4-20 ma control and receives a 12 ma input signal from a control instrument, resulting in a 50% output (according to the analog curve on page 14) and a capacity of 24 l/h. A new situation occurs where it is only necessary to dose 2 l/h. The maximum capacity limitation is set to 4 l/h. The pump is still receiving a 12 ma signal resulting in a 50% output and a capacity of 2 l/h. Q [gph] No cap. limitation 3. Under normal operating conditions, the pump cannot operate at a capacity higher than the one stated in the display. This does not apply to the priming button Cap. limit. = 1 gph [ma] TK Fig. 37 The maximum capacity limitation will also reduce the pump speed in timer-based batch control, pulsebased batch control and during calibration where the pump is usually operating at maximum capacity. Small pump Large pump TM Fig To cover several needs with just one pump size. 5. To adapt the pump to an analog signal. This way it is possible for instance to use a DME 48 for dosing a very small quantity of liquid without changing the input signal (see the following example). Set maximum capacity Operating display Fig

21 DME/DMS INPUT SETUP Input setup Applies to all DME and DMS A(R). Following settings of the input configuration is possible: Level and stop inputs can be changed from NO (normally open) to NC (normally closed) function. If this change is made the inputs must be looped in normal operation. The signal characteristics of the analog input can be selected between following configurations: 0-20 ma 4-20 ma (default) 20-0 ma 20-4 ma Change input for "low level" to dosing monitor input. Fig Units Applies to all DME and DMS It is possible to change display units between metric (liter/milliliter) and US liquid units (gallons/milliliter). When metric units is selected: In manual and analog mode, the capacity is stated in liters per hour (l/h) or milliliters per hour (ml/h). In pulse mode the capacity is always set in ml/ pulse. Capacity is shown in liters per hour (l/h) or milliliters per hour (ml/h). During calibration the setting is made in ml per 100 strokes. In batch and timer mode the capacity is stated in liters (l) or milliliters (ml). Under the VOLUME menu item in COUNTERS menu, the value is stated in liters. When US units is selected: In manual and analog mode, the capacity is stated in gallons per hour (gph). In pulse mode the capacity is always set in ml/ pulse. Capacity is shown in gallons per hour (gph). During calibration the setting is made in ml per 100 strokes. In batch and timer mode the capacity is stated in gallons. Under the VOLUME menu item in COUNTERS menu, the value is stated in gallons (gal). 21

22 SETUP, MONITOR, LOCK DME/DMS Monitor setup Set level input to MONITOR 5.10 Lock Applies to all DME and DMS. It is possible to lock the buttons on the control panel by means of a code to prevent mis-operation of the pump. The locking function can be set in ON or OFF. See the pump installation and operation instructions for more information.the following operations are available even though the pump is locked: Priming (100% button) Start/stop button All external inputs OK Contact screw By-pass channel By-pass valve Floater Floater channel TM02 xxtm Fig /PI

23 DME/DMS RESETTING 5.11 Default When "DEFAULT" is activated, the pump will return to the factory settings. Note: The calibration is also set back to the default setting. This means that a new calibration is required when the "DEFAULT" function has been used. Operating display Operating display without changes Fig Return Fig. 41 The "RETURN" function makes it possible to return from any level in the menu to the operating display without changes after the menu functions have been used. 23

24 PERFORMANCE CURVES DME/DMS 6. Performance curves Performance curve conditions: Media: Water, 20 C Suction lift: 2 meters for DME/DMS, 0.5 meter for DMM. 6.1 DME p [psi] 280 DME 2-18 p [psi] 160 DME Q [gph] TK Q [gph] TK p [psi] DME 12-6 p [psi] DME Q [gph] TK Q [gph] TK p [psi] DME Q [gph] TK

25 DME/DMS PERFORMANCE CURVES 6.2 DMS p [psi] DMS 2-11 p [psi] DMS Q [gph] TK Q [gph] TK p [psi] DMS 8-5 p [psi] DMS Q [gph] TK Q [gph] TK

26 TECHNICAL DATA DME/DMS 7. Technical data 7.1 DME Pump DME 2 DME 8 DME 12 DME 19 DME 48 Maximum capacity without anti-cavitation *1 [gph] [l/h] Maximum capacity with anti-cavitation *1 [gph] [l/h] Maximum pressure [psi] [bar] Maximum stroke frequency *2 [stroke/min] Maximum suction lift during operation [ft] 19.7 Mechanical Maximum initial suction lift [ft] data Maximum viscosity with spring-loaded valves *3 [cp] Maximum viscosity without spring-loaded valves *3 [cp] Maximum liquid temperature [ F] 122 Minimum liquid temperature [ F] 32 Maximum ambient temperature [ F] 113 Minimum ambient temperature [ F] 32 Accuracy of repeatability ±1% Weight and Weight [lb] size Diaphragm diameter [in] Electrical data Signal input Signal output Approvals Supply voltage [V] *1 At any counter-pressure if the pump is calibrated to the actual installation. *2 The maximum stroke frequency varies according to calibration. *3 Maximum suction lift 3 feet. 1 x V, Hz Maximum current consumption [A] at 100 V at 230 V Maximum power consumption P 1 [W] Enclosure class IP 65 Insulation class F Voltage to level sensor input [VDC] Must only be safety extra-low voltage. 5 Voltage to pulse input [VDC] 5 Minimum pulse-repetition period [ms] 3.3 Impedance in analog 4-20 ma input [ohms} 250 Maximum loop resistance in pulse signal circuit [ohms] 350 Maximum loop resistance in level signal circuit [ohms] 350 Maximum load of alarm relay output, at ohmic load [A] 2 Maximum voltage, alarm relay output [V] 250 CE, UL 26

27 DME/DMS TECHNICAL DATA 7.2 DMS Pump DMS 2 DMS 4 DMS 8 DMS 12 Mechanical data Weight and size Electrical data Signal input *1 At any counter-pressure if the pump is calibrated to the actual installation. *2 The maximum stroke frequency varies according to calibration. *3 Maximum suction lift 3 feet. Maximum capacity *1 [gph] [l/h] Maximum pressure [psi] [bar] Maximum stroke frequency *2 [min] 180 Maximum suction lift during operation [ft] 19.7 Maximum initial suction lift [ft] Maximum viscosity with spring-loaded valves *3 [cp] 500 Maximum viscosity without spring-loaded valves *3 [cp] 200 Maximum liquid temperature [ F] 122 Minimum liquid temperature [ F] 32 Maximum ambient temperature [ F] 113 Minimum ambient temperature [ F] 32 Accuracy of repeatability ±1% Weight [lb] 5 Diaphragm diameter [in] Supply voltage 1 x 120 V 12%/+8%, 60 Hz Maximum current consumption [A] at 120 V 0.17 Maximum power consumption P 1 [W] 20 Enclosure class IP 65 Insulation class F Voltage to level sensor input [VDC] Must only be safety extra-low voltage. 5 Voltage to pulse input [VDC] 5 Minimum pulse-repetition period [ms] 3.3 Impedance in 4-20 ma analog input [ohms] 250 Maximum loop resistance in pulse signal circuit [ohms] 350 Maximum loop resistance in level signal circuit [ohms] 350 Signal output Maximum load of alarm relay output at ohmic load [A] 2 Maximum voltage, alarm relay output [V] 250 Approvals CE, UL 27

28 DIMENSIONS DME/DMS 8. Dimensions 8.1 DME and DMS 4 3/8 (110) B ml/h D 6 5/16 (160) 100% C 1/8"ø 3 7/8 (98) A TM Fig. 57 DME 2 DMS 2 - DMS 4 DME 8 DMS 8 DME 12 DMS 12 DME 19 - A in (mm) 5 7/16 (1370) 7 9/16 (192) B in (mm) 9 7/16 (239) 11 5/8 (294) C in (mm) 1 7/16 (36) 5/8 (15) D in (mm) 6 5/8 (168) 7 7/16 (188) DME 48-28

29 DMM CONSTRUCTION 9. DMM The GRUNDFOS DMM pumps are mechanical diaphragm dosing pumps. The pumps are driven by an external fan-cooled motor, connected to a singlestage worm reduction gear. The strokes are generated by an eccentric which moves the diaphragm by means of a spring-loaded plunger. The discharge stroke is activated by the eccentric and the suction stroke by the spring return. 9.1 Sectional drawing, DMM 4 to DMM 155 The pumps are designed for capacities between 0 and 314 gph and a maximum pressure of 145 psi. The pumps are fitted with a separation chamber which, in the event of a diaphragm failure, prevents the pumped liquid from flooding the pump unit or other system components. Standard valve Spring-loaded Spring-loaded valve valve Fig. 12 Tubing connection Threaded connection 9.2 Sectional drawing, DMM 160 to DMM 990 TM Standard valve Spring-loaded valve Tubing connection Threaded connection TM Fig

30 FUNCTIONS DMM 9.3 Functions DMM variant AR variant B TM TM Capacity control Internal stroke frequency control Internal stroke speed control Stroke length setting Control panel Capacity setting in liters, milliliters or US gallons Display with background light and soft-touch buttons * Easy set-up menu with language options On/off button Priming button (temporary maximum speed) Green indicator light for operating indication Red indicator light for fault indication Lock function for control panel Side-fitted option Operating modes Manual control Pulse control Analog control 0/4-20 ma Timer-based batch control Pulse-based batch control Functions Dosing monitoring Dual-level control Calibration of pump to actual installation Anti-cavitation (reduced suction speed) Capacity limitation Counters for strokes, operating hours and power on/off Fieldbus communication (variants AP and AG) Maximum permissible stroke frequency adjustment Power supply Switch-mode power supply Inputs/outputs Input for pulse control Input for analog 4-20 ma control (0/4-20 ma for DMM) Input for dual-level control External start/stop input Alarm relay output (variant AR) Input for external on/off switch * Without background light. 30

31 DMM CAPACITY 9.4. Capacity control DMM, variant AR The capacity of DMM-AR is set by setting the stroke length via the gearbox knob and/or setting the stroke frequency on the control panel. The controller controls the stroke frequency by starting and stopping the motor according to the set stroke frequency. The figure below shows two examples: 1. The pump is running at 100% capacity, i.e. at maximum stroke length and frequency. 2. The pump is running at 25% capacity, i.e. at 50% stroke length and 50% stroke frequency. TM Fig. 17 Capacity setting Discharge 100% Duration Suction Discharge 25% Suction Duration TM Fig DMM, variant B On DMM-B, the capacity is set by setting the stroke length via the gearbox knob. As shown in the figure below, the stroke frequency is constant only the stroke length is adjusted. TM Fig. 19 Capacity setting Discharge 100% Duration Suction Discharge 50% Duration Suction 10% Discharge Suction Duration TM Control variant B 31

32 STROKE LENGTH DMM 10. Settings and operations, DMM 10.1 Stroke length setting Note: The pump must be operating when the stroke length is set. Set the stroke length in the following way: 1. Loosen the locking screw in the middle of the gearbox knob (counterclockwise). 2. Set the stroke length to the desired value, according to the performance table on the pump or the performance curves in section Retighten the locking screw while the stroke length setting is maintained Control panel DMM-AR Fig. 45 Stroke length setting Locking screw TM Red indicator light for operating indication Green ndicator light for external control Red indicator light for fault indication Display Connection for signal cable with M12 connector for external start/stop Connection for signal cable for level sensor Navigation/settings Start/stop of pump Selection of operating mode Connection for external control Screwed cable entry for alarm output Screwed cable entry for supply cable Screwed cable entry for motor supply cable TM Fig Start/stop of pump The pump is started and stopped by means of the On/off button. When the pump is stopped, OFFwill appear in the display. If the pump is stopped via an external start/stop signal, the indicator light Extern will be on Maximum permissible stroke frequency To set the maximum permissible stroke frequency, proceed as follows: 1. Press the buttons Mode and On/off simultaneously and switch on the electricity to the pump. The display shows the maximum permissible stroke frequency. 2. Keep the buttons pressed and change the value by means of the buttons and. 3. Stop pressing the buttons Mode and On/off. The pump restarts automatically when the buttons are no longer pressed. 32

33 DMM ALARM OUTPUT 10.5 Alarm output As an alarm output, the pump has an internal potential-free contact. Change of factory setting: To change the alarm output function, press the buttons Mode and simultaneously and switch on the electricity supply to the pump. appears in the display. Return to factory setting: To change the alarm output function back to the factory setting, press the buttons Mode and simultaneously and switch on the electricity supply to the pump. appears in the display. The following table shows the operating conditions under which the alarm output is activated when the pump is running under factory setting: Condition Green indicator light Red indicator light Pump running On Off Set to stop Flashing Off Alarm output NC NO C NC NO C 10.6 Operating modes Possible operating modes: manual control pulse control analog control To select the operating mode, press the buttons Mode and or simultaneously. Button Display Description Mode + Manual control Manual control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Pulse control Analog control Analog control Pump fault Off On NC NO C Supply failure Off Off Pump running, low chemical level* On On Empty tank* Off On Analog signal < 3 ma Off On *Requires connection to level sensors NC NO C NC NO C NC NO C NC NO C Fig. 47 In the case of manual control, select a stroke length and a stroke frequency. Consequently, the pump will dose a constant quantity of chemical per time unit, irrespective of the process. To select the operating mode, proceed as follows: 1. Press the buttons and or simultaneously until appears in the display. 2. Stop pressing the button Mode. The display shows the actual stroke frequency in strokes/min. 3. Change the stroke frequency by means of the buttons and. TM

34 PULSE AND ANALOG CONTROL DMM Pulse and analog control Fig. 48 TM Analog control In the case of analog control, select a stroke length and an input signal. The pump will dose a quantity of chemical which is proportional to the input signal. For stroke length setting, see section 43. To select the operating mode, press the buttons Mode and or simultaneously until the following appears in the display: for 0-20 ma signal or for 4-20 ma signal. The indicator light Extern is on. The stroke frequency of the pump will be proportional to the input signal, according to the curve shown in fig. 50. Fig. 49 Control can be selected with: pulse signal or analog signal. Pulse control In the case of pulse control, select a stroke length and pulse multiplication/pulse division, if desired. Consequently, the pump will dose a constant quantity of chemical per pulse. For stroke length setting, see section 43. To set the pulse multiplication/pulse division, press the buttons Mode and or simultaneously until the display shows the following: 1.1 for a ratio of 1:1, i.e. 1 pump stroke to 1 pulse, 1. 2 to for pulse multiplication or 2. 1 to for pulse division. The indicator light Extern is on. Example: means that the pump needs 1 pulse to generate 64 pump strokes means that the pump needs 64 pulses to generate 1 pump stroke. The following settings are possible: 1, 2, 4, 8, 16, 32 and 64. TM Stroke frequency [%] Fig ma ma signal signal 4-20 ma signal Input signal [ma] TM

35 DMM PERFORMANCE CURVES 11. Performance curves, DMM US gph 1.8 DMM Hz US gph 3.2 DMM Hz psi 75 psi 150 psi psi 75 psi 150 psi Stroke length setting Stroke length setting US gph DMM US gph DMM Hz 8 60 Hz 30 psi 6 30 psi 7 75 psi 5 75 psi 150 psi psi Stroke length setting Stroke length setting US gph DMM Hz 30 psi 75 psi 150 psi US gph DMM Hz 30 psi 75 psi 150 psi Stroke length setting Stroke length setting 35

36 PERFORMANCE CURVES DMM US gph DMM Hz 15 psi 45 psi 75 psi US gph DMM Hz 15 psi 30 psi 45 psi 60 psi Stroke length setting Stroke length setting US gph DMM Hz 15 psi US gph DMM Hz 15 psi psi 150 psi psi 150 psi Stroke length setting Stroke length setting US gph 140 DMM Hz 15 psi US gph DMM Hz 15 psi psi 150 psi psi 75 psi Stroke length setting Stroke length setting 36

37 DMM TECHNICAL DATA BOOKLET US gph DMM Hz 15 psi 45 psi 75 psi US gph DMM Hz 15 psi 30 psi 45 psi 60 psi Stroke length setting Stroke length setting 37

38 MECHANICAL DATA DMM 12. DMM, 60 Hz Mechanical data Maximum capacity at maximum pressure DMM [gph] [l/h] [ml/ stroke] Maximum pressure psi Diaphragm diameter [mm] 2 1 / / / / / / / / /4 4 3 / / / / /16 Maximum stroke [stroke/ frequency min.] Maximum suction lift during operation [ft] Maximum viscocity with spring-loaded valves *2 [cp] 3000 * Maximum viscocity without spring-loaded valves [op] 400 Maximum ambient temperature [ F] 104 Maximum liquid temperature [ F] 122 Accuracy of repeatability ±2% Weight (plastic dosing head) [16] Weight (stainless steel dosing head) [16] Input/output data (DMM-AR) Voltage to level sensor input [VDC] 5 - Maximum loop resistance [Ohm] in level signal circuit Voltage to pulse input [VDC] 5 - Maximum loop resistance [Ohm] in pulse signal circuit Impedance in analog 0/4-20 ma input [Ohm] Maximum voltage, alarm relay output [V] Maximum load of alarm relay output [A] 2 - Standard motor data (DMM-B) 3 x 230/460 V Frequency 60 Standard motor data (DMM-B) 3 x 575 V Frequency [Hz] Enclosure class Insulation class 60 * 1 At any counter-pressure if the pump is calibrated to the actual installation. * 2 The maximum stroke frequency varies according to calibration. 38

39 DMM DIMENSIONS 12.1 DMM DMM 4 to DMM 155 DMM 160 to DMM 390 DMM 440 to DMM /8 (130) A 7 (177) D A 3 (101) 3 15 /16 (100) D 3 9 /16 (90) 3 7 /8 (90) 3 (75) 3 /4 (18) 1 5 /16 (32) 2 13 /16 (70) 4 (101) 4 3 /16 (106) B 5 1 /8 (130) 4 3 /16 (122) 2 7 /8 (73) 1 3 /16 (30) 5 3 /8 (136) 1 1 /2 (37) 3 15 /16 (100) B 5 1 /8 (130) 7 /16 (11) 1 1 /4 (31) TM /8 (40) C TM (76) 2 1 /8 (53) C 11 7 /16 (290) TM * Only control variant AR. Fig. 58 Dimensions inches [mm] Type A B C D DMM /4 [108] 3 3 /4 [95] 8 3 /8 [212] /16 [372] DMM 8 DMM 15 DMM 23 DMM 48 DMM 72 DMM 110 DMM 155 DMM 160 DMM 210 DMM 260 DMM 290 DMM 390 DMM 440 DMM 640 DMM /4 [108] 4 1 /4 [108] 4 1 /4 [108] 5 13 /16 [147] 5 13 /16 [147] 9 5 /8 [243] 9 5 /8 [243] 11 [278] 11 [278] 11 [278] 12 9 /16 [318] 12 9 /16 [318] 10 7 /16 [265] 10 7 /16 [265] 10 7 /16 [265] 3 3 /4 [95] 3 3 /4 [95] 3 3 /4 [95] 4 1 /16 [103] 4 1 /16 [103] 4 5 /8 [117] 4 5 /8 [117] 5 7 /8 [148] 5 7 /8 [148] 5 7 /8 [148] 6 1 /16 [153] 6 1 /16 [153] 8 7 /8 [225] 8 7 /8 [225] 8 7 /8 [225] 8 3 /8 [212] 8 3 /8 [212] 8 3 /8 [212] 8 7 /8 [224] 8 7 /8 [224] 10 1 /4 [259] 10 1 /4 [259] 12 1 /2 [317] 12 1 /2 [317] 12 1 /2 [317] 12 5 /8 [320] 12 5 /8 [320] 16 3 /4 [425] 16 3 /4 [425] 16 3 /4 [425] /16 [372] /16 [372] /16 [372] /16 [372] /16 [372] /16 [372] /16 [372] 19 3 /16 [486] 19 3 /16 [486] 19 3 /16 [486] 19 3 /16 [486] 19 3 /16 [486] 20 7 /8 [530] 20 7 /8 [530] 20 7 /8 [530] 39

40 ACCESSORIES DME/DMS, DMM 13. Accessories GRUNDFOS offers a comprehensive range of optional extras covering every need when dosing with GRUNDFOS dosing pumps Overview Water meter Injection valve Back-pressure and relief/isolating valve Pulsation dampener Automatic vent valve Multifunction valve Pressure gauge Flow indicator Connector for pulsation dampener Pump connections Priming aid Tubing Cable and plug Wall bracket Installation kit Rigid suction line Rigid suction line with level sensors Tank Hand mixer Foot valve Level control unit Electric agitator TM

41 DME/DMS, DMM ACCESSORIES 13.2 Installation kit The installation kit includes: foot non-return valve with strainer and weight injection non-return valve, spring-loaded 20 ft PE discharge tubing 6 ft PVC suction tubing 6 ft PVC vent tubing. TM Cable and plug Cable and plug for connection of pump to external control devices, such as process controllers, flow meters, start/stop contacts, and level sensors. GRUNDFOS level control units are factory-fitted with cable and plug connection for GRUNDFOS dosing pumps. The cables and plugs fit all dosing pumps, types DME, DMS-A and DMM-AR. Cable material: PUR. Plug type: M12. TM Tubing Tubing in various materials, sizes and lengths. TM

42 ACCESSORIES DME/DMS, DMM 13.5 Foot valve Foot valve complete with non-return valve, strainer and tube or pipe connection. TM Injection valve Injection valve complete with spring-loaded non-return valve, injection pipe and tube or pipe connection. Spring material: Hastelloy Opening pressure: DN 4, DN 8: 10 psi DN 6, DN 10, DN 15, DN 25: 16 psi Max. temperature: PP, PVDF: 122 F PVC: 104 F Stainless steel: 176 F 42

43 DME/DMS, DMM ACCESSORIES 13.7 Multifunction valve Compact valve unit for direct mounting on the pump discharge connection. The valve has four functions: 1. Constant back pressure, 2. Anti-siphoning, 3. Pump protection, 4. Manual pressure relief. Relief pressure: 160 psi Constant counter pressure: 22 psi TM TM TM Dimensions 4 3 /8" 2" TM /4" 43

44 ACCESSORIES DME/DMS, DMM 13.8 Dosing monitor The dosing monitor is used in connection with the dosing monitoring function in DME and DMA-A pumps. The monitor sends a pulse signal (closed contact) for every measured pump stroke in the dosing tube. As the DME pump in many situations operates without pulsations in the discharge side, the monitor allways must be installed on the suction side of the DME pump. With the DMS pump, the monitor can be installed on both suction and discharge side. Max. pressure: 27.5 psi Max. liquid temperature: 95 F Max. liquid viscosity: 20 cp Pulse transmitter (reed contact) max. load 48 VAC/VDC, 0.5 A Materials in contact with liquid: PMMA/PVC/ PVDF/FKM Measured pump stroke Measured pump stroke Measured pump stroke Monitor mounted on suction side (DME and DMS) Monitor mounted on discharge side (DMS only) Monitor mounted in dosing tube. In discharge line: DMS In suction lline: DME and DMS TM TM TM Fig

45 DME/DMS, DMM ACCESSORIES 13.9 Flow indicator The flow indicator is used for discharge monitoring. When the dosing pump is discharging liquid, the white ball will jump in the transparent pipe. Each dosing stroke causes a ball jump. The flow indicator is designed so that ball movements can be seen at flow rates from gph. At a steady flow, the ball will always be in the top position. The flow indicator installs and retrofits easily. Material: PVC grey, PVC transparent, PVDF, FKM, ceramic AI 2 O 3. Maximum pressure: 145 psi Maximum pulsed flow: 12 gph TM Pump connection Separate retrofit pump connections for adapting standard GRUNDFOS pumps to installation-specific tubing and pipe types and sizes. TM Adaptor connections The adaptor connections are used for adapting DME and DMS pump to suction and discharge tubing similar or different to GRUNDFOS standard tubing sizes. Each product number includes a complete set of two cones and twp cuttings rings. 45

46 ACCESSORIES DME/DMS, DMM Rigid suction line Preassembled rigid suction line with adjustable length for mounting in a tank. The suction line consists of foot valve with strainer, rigid suction pipe, tank connection thread and suction tubing. For control variant A, the suction line is available with level sensors (NO-contacts) for warning and empty-tank signals, supplied complete with cable and plug for pump connection. Material: PVC. Suction tubing length: 5 ft. Level cable length: 5 ft. Level plug type: M12, 4-pole. Maximum load of level contacts: 50 V, 0.5 A. Function of level contacts: Low level/empty tank = closed contact. TM Dimensions With level sensors Without level sensors TM TM L=22 to 50 in. G=1 inch dia. 46

47 DME/DMS, DMM ACCESSORIES Level control unit For dosing pumps with level control input (variant A), complete with level sensors (NO-contacts), ceramic weight, cable and plug for pump connection. Material: PVC. Level cable length: 8 ft. Level plug type: M12, 4-pole. Maximum load of level contacts: 50 V, 0.5 A. Function of level contacts: Low level/empty tank = closed contact. TM Dimensions 1" TM Dimensions, without connectors Back-pressure and relief valve DN 6, DN 10, DN 15 DN 25, DN 32, DN 40 TM TM

48 ACCESSORIES DME/DMS, DMM Valve assembly Complete assembly of either: back-pressure and relief valve or relief and isolating valve. Valve diaphragm material: PTFE. Pressure range of back-pressure and relief valve: psi. TM Dimensions Back-pressure and isolating valve Back-pressure and relief valve TM TM

49 DME/DMS, DMM ACCESSORIES Automatic vent valve Automatic vent valve for direct fitting to the pump discharge connection. Valve housing material: PMMA/PVC. O-ring material: FKM. Valve ball material: Glass. Valve seat material: PVDF. Power cable length: 1.5 m. Plug type: 120 volt US With timer: The valve is continuously connected to the power supply and the opening time and opening intervals are set on the timer. Without timer: The valve will open when power is connected to the valve. This version is ideal for operation in connection with a dosing monitor, see page 44. The valve is available either with or without timer. TM /TM Dimensions A 4 3/8" 4 3 /16" Automatic vent valve (with timer) 3 15/16" 3 1 /8" B 1/4" TM Pulsation dampener The pulsation dampener can be installed both in the suction and the discharge line for reducing pressure surges, thereby ensuring a steady flow. The dampener is particularly suitable for long discharge lines and/or lines with a small diameter. Installed in the discharge line, the dampener can be used for optimizing dosing accuracy and for protection of pump and discharges line against pressure surges. Depending on the system pressure, it may be necessary to install a counter-pressure valve after the dampener to optimize its function. Maximum pressure: 145 psi. TM

50 ACCESSORIES DME/DMS, DMM Dimensions, without connections Pulsation dampener Size 80 Size 250 Sizes 750 and 2500 Accessories for pulsation dampeners Connector For direct fitting of pulsation dampener size 80 to pump discharge connection. TM TM Dummy plug For installation of pulsation dampener in T-piece connection. TM TM Pressure gauge For measuring gas pressure in pulsation dampener. TM TM TM TM TM

51 DME/DMS, DMM ACCESSORIES Priming aid The priming aid is a transparent, air-tight collector with a screw cap on top. It is mounted between the tank and the pump. The inlet from the tank and the outlet to the pump are both in the bottom of the collector. The priming aid is supplied with a bracket for wall mounting and a rod for mounting on top of the tank. The priming aid has the following functions: Priming. The priming aid facilitates priming in case of frequent stops and/or high suction lifts by eliminating or reducing the dry-suction phase. Gas trap. Gas occurring in the suction line is trapped in the top of the priming aid to prevent it from entering the dosing head. Pulsation dampening. The dampening gas cushion in the top of the priming aid reduces pressure surges, resulting in optimum dosing accuracy and reduced risk of cavitation. Material: PVC. TM Dimensions Priming aid Size 95 Size / / /4 1 TM /4 TM

52 ACCESSORIES DME/DMS, DMM Tank Closed cylindrical tank with screw cap and threaded connection for rigid suction line. Material: PE. Pump mounting plate: The DMS, DME pumps can be mounted directly on the tank top by means of adapter plates. Material: PP DME 2 to DME 12 and DMS: DME 19 and DME 48: Floor mounting bracket: Material: PE Set of four: TM Dimensions 5 1 /4 Floor mounting bracket TM / /16 52

53 DME/DMS, DMM ACCESSORIES Hand mixer Manual stamper with adjustable length for mixing of chemicals in a tank. The mixer is designed for GRUNDFOS chemical tanks. Material: PVC. TM Dimensions 13 / /16 TM

54 ACCESSORIES DME/DMS, DMM Electric agitator Electric agitators ensure homogeneous mixing of the chemical solution in the tank. Mixing is essential for dissolving difficultly dilutable powder additives or liquid additives. The agitator is equipped with a single or threephase motor, an agitator shaft connected directly to the motor shaft and a three-blade mixing propeller. The selection of the agitator size depends on whether readily-soluble substances, or permanently poorly miscible emulsions or insoluble suspensions are to be stabilised. The latter require higher power input and, if necessary, continuous operation instead of intermittent operation. The shaft and the propeller must be submerged into the liquid during operation. The agitator must be protected against dry-running. Agitator shaft material: PTFE-coated stainless steel DIN W.-Nr or stainless steel DIN W.-Nr Propeller material: PVDF. Motor insulation class: F. Enclosure class: IP 55. TM Dimensions Motor size [HP] Dimensions [in.] A B C D E F G H 5 3 / / /4 5 /8 3 /8 3 / / / /8 4 3 /8-3/8 3 / /16 TM Sealing flange When mixing aggressive liquids, the use of a sealing flange for protection of the motor is recommended. The sealing flange is made of polypropylene and sealed with a V-ring. It fits 0.12 and 0.16 HP agitators. Product number:

55 DME/DMS, DMM ACCESSORIES Wall bracket Wall brackets for easy installation of the dosing pump on the wall Water meter In-line water meter with potential-free pulse signal for use in flow-proportional dosing applications. Meters from DN 20 to DN 25 are of the multi-jet, dry dial type for cold water up to 86 F or hot water up to 194 F. Meters from DN 50 to DN 150 are of the helical vane type for cold water up to 122 F or hot water up to 248 F. If the water meter is to be connected directly to the pump pulse input a control plug should be used. Depending on size, the meter is supplied with threaded connections or flanges. 55

56 56

57 DIGITAL DOSING Diaphragm Metering Pumps Submittal Data For Approval Certified/FINAL DME COMPANY: PHONE: CONTACT: TITLE: FAX: PROJECT NAME/DESCRIPTION: ORDER NUMBER: Service Conditions CONCENTRATION: by wt. by volume FLUID: FLOW RATE: DISCHARGE PRESSURE: MIN. MAX. SUCTION PRESSURE: MIN. MAX. SPECIFIC GRAVITY: VISCOSITY (CPS): PRODUCT TEMPERATURE: AMBIENT TEMPERATURE: Control Options MANUAL ANALOG PULSE RATE PER PULSE: TIMER BATCH RATE PER PULSE: DURATION LEVEL CONTROL ALARM RELAY BUS SYSTEM REFER TO FACTORY Pump Data 1. SIZE/MODEL: PRODUCT NUMBER: 2. MAX. FLOW RATE: 3. MAX. PRESSURE: 4. MATERIALS OF CONSTRUCTION: Head PP PVDF SS Gasket FKM EPDM Valve Balls Ceramic SS Spring Loaded Yes No Accessories Other Data

58 58

59 DIGITAL DOSING Diaphragm Metering Pumps Submittal Data For Approval Certified/FINAL DMS COMPANY: PHONE: CONTACT: TITLE: FAX: PROJECT NAME/DESCRIPTION: ORDER NUMBER: Service Conditions CONCENTRATION: by wt. by volume FLUID: FLOW RATE: DISCHARGE PRESSURE: MIN. MAX. SUCTION PRESSURE: MIN. MAX. SPECIFIC GRAVITY: VISCOSITY (CPS): PRODUCT TEMPERATURE: AMBIENT TEMPERATURE: Control Options MANUAL ANALOG PULSE RATE PER PULSE: TIMER BATCH RATE PER PULSE: DURATION LEVEL CONTROL ALARM RELAY BUS SYSTEM REFER TO FACTORY Pump Data 1. SIZE/MODEL: PRODUCT NUMBER: 2. MAX. FLOW RATE: 3. MAX. PRESSURE: 4. MATERIALS OF CONSTRUCTION: Head PP PVDF SS Gasket FKM EPDM Valve Balls Ceramic SS Spring Loaded Yes No Accessories Other Data

60 60

61 DIGITAL DOSING Diaphragm Metering Pumps Submittal Data For Approval Certified/FINAL DMM COMPANY: PHONE: CONTACT: TITLE: FAX: PROJECT NAME/DESCRIPTION: ORDER NUMBER: Service Conditions CONCENTRATION: by wt. by volume FLUID: FLOW RATE: DISCHARGE PRESSURE: MIN. MAX. SUCTION PRESSURE: MIN. MAX. SPECIFIC GRAVITY: VISCOSITY (CPS): PRODUCT TEMPERATURE: AMBIENT TEMPERATURE: Control Options MANUAL ANALOG PULSE RATE PER PULSE: TIMER BATCH RATE PER PULSE: DURATION LEVEL CONTROL ALARM RELAY BUS SYSTEM REFER TO FACTORY Pump Data 1. SIZE/MODEL: PRODUCT NUMBER: 2. MAX. FLOW RATE: 3. MAX. PRESSURE: 4. MATERIALS OF CONSTRUCTION: Head PP PVDF SS Gasket FKM EPDM Valve Balls Ceramic SS Spring Loaded Yes No Accessories Other Data