Motor-Diaphragm Dosing Pumps Types MEMDOS MR Operating
Contents
1. 7 4 Injection fitting assembly Injection fittings are used to mix the metered medi um into a main stream and simultaneously fulfil a non return function The injection fitting is usually installed in the main line from above Installation from below is only recommended in the case of media with a tendency to crystallize in order to ensure that air bubbles are not entrapped For this type of installation it is advisable to select a form in which the injection fitting can be sealed off when removed Injection fitting S from above 0 ccc O 13 Extractable injection fitting from down below 7 5 Electrical connection The electrical connection of the dosing pump must be made according to the local rules and may only be carried out by technical personnel Cable type und cable cross section of the supply lines must be selected according to the motor data The cable passage to the motor terminal box must be made professionally We recommend gland screw connections with traction relief The required protection class must be ensured by professional installation of the electrical connections Caution Dosing pumps with explosion proof motors must be installed and commissioned by specialists qualified to work with equipment destined for use in potentially explosive atmospheres The user is responsible for ensuring that the explosion proof motors are connected correctly Both the motor and the2. yO 0 10Vy0 0 620mV ee ff 12 B 4 5 12 lo ME 0 1 L y 0 10V y 0 20mA f T 4 20mA 0 620mV 0 10V 0010V Type WAN 1 ENT 5 Ld 18 19 20 21 22 23 7 8 911011 psqp ipa aD gt a J gt Loy Y y Position Optional PE Open N Close repeating Position T Position signaling repeating ne repeating 1KN signaling signaling 230v 1KN De 0 4 20mA P D 253 gt a O1 L Conductance 0 4 20mA 230 Final position D Repeating signal NadO _ 3SO193 9 03 15 7 6 Installation example 8 Stroke length adjustment Caution The stroke length must not be adjusted when the pump is at a standstill Proceed as follows to adjust the stroke length 1 Turn the screw securing the adjusting knob anticlockwise to the left to release it 2 Set the stroke length to the required value in accordance with the delivery characteristics chapter 5 3 Retighten the screw without changing the set stroke length 9 Start up 1 Before starting the dosing pump all works mentioned in Installation chapter 7 must be carried out Fill the pump with the oil supplied At the sam
3. 980 4b ar 2bar m 3bar 1000 T 4bar 900 800 700 600 500 400 300 200 100 Skala 10 Vh MR 75 1bar 100 90 5bar 80 10bar 70 60 50 40 30 20 10 lh MR 140 Scale 6 7 10 1bar 200 180 160 5bar 10bar 140 120 100 80 60 40 20 l h MR 290 10 1bar 400 350 5bar 300 10bar 250 200 150 100 50 l h MR 600 10 800 700 1bar 3bar 600 5bar 500 400 300 200 100 10 Technical changes are always reserved without notice 9 03 abed WALSAS 3002 HOLVW IeJeueB ees uoneue dx pue jdwex JepJo 404 dd d B uoisi8A PIEPUEIS y ejeoipui Sees 1onoedeo Bujesodo pue eyep jeoujeje 1 ulo Bures ui Jo OW o y JESCG AHp jeloeds Z punoma Ajleisadse 709 S 1noum jo ed L uonoeuuoo eroeds Z J SS 0S 0 c Jojoul o y 9L Nd SZ NG X rl OI p xa 3 uonoeuuoo peBue J 1uBn ie jooud uorsojdxe 3 SS 0S 00tr O L9 0 3 SS 0S 00v 8 Ajuo COV YN v E 9 d MA 84 0 Jo owW eseud eaiu L II 9 X3 3 AjSjes peseauour jooJd uorso dxe Uuono
4. main headings must also be observed for instance in conjunction with private use 1 2 Warnings used in this Operating Manual This Operating Manual contains warnings which may endanger persons the environment and the pump system if they are disregarded These warnings are identified by the hazard symbol AN safety mark in accordance with DIN 4844 W9 The following symbol is used in conjunction with electric power safety mark in accordance with DIN 4844 W8 The word Caution appears in conjunction with safety instructions which may endanger the machine and its operation if disregarded Markings which are affixed directly to the pump such as Direction of rotation arrow Markings for fluid connections must be observed without fail and must remain fully legible at all times 9 03 JEsct Note Draws attention to supplementary information to make the work easier and ensure troublefree operation 1 3 Qualification and training of personnel The personnel employed for operation maintenance inspection and installation must be suitably qualified forthis work The areas of responsibility competence and supervision of the personnel must be precisely defined by the owner Personnel who do not have the requisite know how must be duly trained and instructed If necessary this can also be undertaken by the manufacturer supplier on behalf of the pump s owner In addition the owner must also en
5. pump must be grounded to prevent electrostatic discharges Electrical connection data other types upon request Voltage Current Volt A 400 230 1 50 2 60 50 Hz 400 230 60 Hz 440 254 60 Hz 400 230 50 Hz 400 230 60 Hz 440 254 60 Hz 1 25 2 20 1 25 2 20 2 00 3 50 1 75 3 05 1 70 310 14 Technical changes are always reserved without notice Circuit diagram of the drive motor Caution To avoid early wear of the gear drive adhere to the correct rotation direction of the motor by all means looking at the fan wheel counterclockwise 3 phase supply Ow2 Qu2 Ov2 MEN Qui vio 8 II L1 L2 L3 PE L1 L2 L3 Y connection A connection Special versions For other special versions please refer to the corresponding separate circuit diagrams 9 03 7 5 1 Circuit diagram for ATE servomotors Type AR 30W23 F001 230V and AR 30W23 F020 24V AM LT e HE HA cJ 162 317 0 1712 A3 nAn 14516 718 9 A lY Y y Position Optional PE Open N Close repeating Position signaling repeating Voltage free contacts 0 1k Q signaling max 250V 1A 230v 0 1k Q Type AR 30W23S F020 24V JESCG S
6. Dosing Pump Model designation Minidos A Memdos TM Memdos M Memdos ML Memdos E Memdos MR Memdos GMR Relevant EC regulations EC Low Voltage Directive 73 23 EEC EC Directive Relating to Machinery 89 392 EEC amended by 93 44 EEC Applied harmonized EN 292 1 and EN 292 2 Safety of Maschines standards especially prEN 809 Pumps and Pump Devices for Liquids Safety Requirements Date Signature of Manufacturer 2003 02 02 Z Z Ve TOT Information on the signer Mr Lucjan Gogolin Head of Technical Office This declaration is no assurance of characteristics in the sens of the product liability law The safety notes in the operating instructions must be observed 9 03 21 EC Declaration of Conformity We Lutz Jesco GmbH Am Bostelberge 19 D 30900 Wedemark hereby certify that the product described in the following complies with the relevant fundamental safety and sanitary requirements and the EC regulations mentioned below due to the concept and design of the version sold by us If the product is modified without our consent this declaration loses its validity Product description Explosion proofed Diaphragm Metering Pump Model designation Memdos E Memdos MR Relevant EC regulations EC Low Voltage Directive 73 23 EEC EC Directive Relating to Machinery 98 37 EC EC Directive for Equipment and protective systems intended for use in potentially explosive atmospheres 94 9 EC Applied harmoniz
7. JEscti Operating instructions Motor Diaphragm Dosing Pumps Types MEMDOS MR Dosing Liquids Conveying Gases Control Systems Operating instructions MEMDOS MR Lutz Jesco GmbH 2003 Address Lutz Jesco GmbH Am Bostelberge 19 D 30900 Wedemark PO Box 10 01 64 D 30891 Wedemark Tel 49 0 51 30 58 02 0 Fax 49 0 51 30 58 02 68 E Mail info jesco de Internet www jesco de 24h Hotline 49 0 51 30 580 280 Content 1 Safely 2 een bel 5 7 1 1 General u Lu u ae aa nennen 5 1 2 Warnings used int this Operating Manual sse 5 1 3 Qualification and training of personnel a 5 1 4 Hazards due to non compliance with safety instructions 5 1 5 Safe Operation uiid kn 5 1 6 Safety instructions for the owner operator sem 5 6 1 7 Safety instructions for inspection maintenance and installation work 6 1 8 Unauthorized modification and production of spare parts 6 1 9 Impermissible modes of operation ssssssssssss ee 6 1 10 Dosing of chemicals t Eat e ione eer Re iie ee bai Sae dee 6 7 TAT SCOPE of dellvety uu uuu hnic ea een 7 2 General purpose ooi een Eee ees REI en Heu ns ers EP ce Deoa r E E 7 3 e E E 8 4 Technical data erre S a a Aa a Esaa aaa ERa r Aann AN Snia 8 9 4 1 Technical data MEMDOS MR r rsssssss
8. agm Torque 10 90 6Nm 120 6Nm 150 10Nm 185 12Nm 9 After connecting the metering lines the pump is started as described in chapter 9 startup 10 If the diaphragm wear is excessively high try to find out the reason For this purpose please refer to chapter 13 Troubleshooting 18 Technical changes are always reserved without notice 11 Explosion proof dosing pumps 11 1 General The MEMDOS MR explosion proof dosing pump is a motor driven explosion proof diaphragm dosing pump of equipment category 2 group ll In combination with an explosion proof motor Ex Il 2 G E Exe II T3 or Ex II 2 G E Ex d de IIB IIC TA it is used to meter liquids in potentially explosive areas of zone The pump bears the Ex identification ExI 2 G c k T4 03 ATEX D086 Caution The pump must not be used to meter gaseous media or solids 11 2 Special conditions Compliance with the minimum requirements for the zone classification must be ensured when using the dosing pump in potentially explosive areas Both the pump itself and the motor must meet with the minimum requirements 11 3 Dosing of flammable media All metal parts in the intake and delivery piping must be grounded to prevent electrostatic discharges when dosing explosive liquids Stainless steel is recommended for the dosing head Dosing pumps with diaphragms measuring more than 90 mm in diameter are equipped with special conductive diaphragms to prevent static charg
9. dosing pump can still dissipate its own heat sufficiently Exposure to direct sunlight must be avoided If the dosing pump is installed outside provide a roof to protect it against weather Mount the pump so that the suction and discharge valve are in vertical position To ensure thatthe pump stands firm fasten it with screws on an appropriate foundation The system piping must not exert any force on the connections and valves of the metering pump To avoid incorrect metering after the process is finished provide an electric and hydraulic interlocking system 7 3 Drain pipe Caution Drainage or leakage from the separating chamber mustbe routed with a certain downward slope to the containment tank By no means must the drain pipe be returned directly to the chemical through the tank cover because otherwise effervescent media might enter the pump gear The drain pipe may only be 9 03 Jesca routed to a collecting tank free of gases with a downward slope or to a collecting funnel also with a downward slope above which the pipe ends ata sufficient distance Leakage can be returned via the funnel through the tank cover Besides possible leakage can be seen at the funnel A Caution If a leakage monitor is installed in the explosion hazard area the electrical connection must be intrinsically safe The drive motor must be electrically interlocked to prevent additional medium escaping if a leak occurs
10. e time the safety instructions must be observed 2 The dosing pump is switched on by a control to be installed externally 3 The manual or electrical capacity adjustment must be set to maximum stroke to improve priming During first priming no backpressure should be applied For this purpose we recommend to install a relief valve on the discharge side of the dosing pump Explanation MEMDOS MR Electric agitator Chemical tank Relief valve Diaphragm shutoff valve Injection fitting Pulsation dampener Backpressure valve co 40 OQ Q N 4 A previously installed priming aid must be filled with chemical first If the pump is not priming remove the discharge valve and fill water or chemical if not dangerous into the dosing head Remount valve and start priming If a venting facility is available as separate unit open it and wait until liquid escapes Then close it again In the case of effervescent liquids allow the liquid to escape permanently approx 1 drop for 1 3 strokes When correct operation is achieved set to required output by means of the adjusting knob refer to chapter 8 or the electrical remote adjustment For approximation refer to the performance curves chapter 5 Depending on the installation and the chemicals used these values may differ and must be checked under operating conditions The manufacturer of the metering equipment is not responsible for damages due to excessive o
11. ed EN 292 1 and EN 292 2 Safety of Maschines standards especially EN 809 Pumps and Pump Devices for Liquids Safety Requirements EN 13463 1 Non electrical equipment for potentially explosive atmospheres Date Signature of Manufacturer 2003 07 01 Ml NM Information on the signer Mr Lucjan Gogolin Head of Technical Office This declaration is no assurance of characteristics in the sens of the product liability law The safety notes in the operating instructions must be observed 22 Technical changes are always reserved without notice 9 03
12. egulations of the local public utilities Separate regulations must be observed if the dosing pumps are operated in explosion hazard areas The explosion hazard must be defined classification of zones and appropriate equipment selected by the owner Further information can be found in section 7 1 Installation section 7 5 Electrical connection and section 11 Explosion proof dosing pumps 1 7 Safety instructions for inspection maintenance and installation work The owner must ensure that all maintenance inspection and installation work is undertaken by authorized and duly qualified skilled personnel who have also studied the Operating Manual in depth The pump must always have come to a complete stop before starting any work on the pump The procedure specified in the Operating Manual for shutting down the pump system must be observed without fail Pumps or units in contact with potentially harmful media must be decontaminated All safety mechanisms and guards must be refitted and reactivated as soon as the work is complete A Particular care must be taken when repairing dosing pumps which are used in explosion hazard areas Due to the risk of sparking care must be taken to prevent metal parts or tools knocking against one another The dosing pump should preferably be moved out of the explosion hazard area in order to be repaired The points set out in the section Installation and commissioning must be observed before sta
13. equent diaphragm ruptures Diaphragm was not screwed into diaphragm rod as far as stop Screw in new diaphragm as far as stop Injection nozzle blocked Clean injection nozzle fit larger one if necessary Pressure peaks because metering line is too long or too narrow Change line or install pulsation dampener Forincreased safety install relief valve see installation example Pump very noisy Roller bearing defective Replace roller bearing No or little oil in gearbox Refill oil as described in section maintenance Motor hums and doesn t start If the problem cannot be corrected on the basis of the above data return the pump to the factory or contact our Wrong connection Check electrical wiring Pressure too high Check process Technical Sales Service for further measures Repairs will be carried out immediately 20 Technical changes are always reserved without notice 9 03 JEscti 14 Certificate of conformity EC Declaration of Conformity We Lutz Jesco GmbH Am Bostelberge 19 D 30900 Wedemark hereby certify that the product described in the following complies with the relevant fundamental safety and sanitary requirements and the EC regulations mentioned below due to the concept and design of the version sold by us If the product is modified without our consent this declaration loses its validity Product description Diaphragm
14. euuoo poepeaiJu L 3 SS 0S 00v N Ot p IN en en Jeroeds 6 zep 1 euojeuJ uonoeuuoo pajueule UOJIA 9 jeloads Z uojed H G pe jeloeds Z LZSv L luo 007 HW SZ p H Jo epeuu s ees UJIA 3 SS 0S 00v V leeis IS S sonen jeq apus pe 31v 3 J ul SOH pepeo Buuds MA SS 0 JoJow eseud eaiu pe ue IN dd d uonoeuuoo uonoeuuoo 9A EA abueyosiq 9 Up jueugsnipe JEuojeuu ZIS EUIUJON eBueuosiq uonons 9AJ amp uonong je2uj9 3 ioedeo peeH I ioedeo duund xejdnq z duund xejduuis speay Bulsop Jo Jequinu j Jf D j d usoro 6 Type codes 11 9 03 7 Installation 7 1 General notes of instruction For the selection of a dosing pump when designing a plant as well as for the installation and operation the local rules must be observed This applies to the selection of suitable pump materials the handling of the chemicals and the electrical installation Before installing the pump in explosion hazard areas the dosing pump must be checked to ensure that it meets with the minimum requirements imposed by the applicable explosion protection regulations For this purpose the data on the rating plate of the dosing pump must be compared with the local requirements At the same time the technical data of the dosing pump see chapter 4 must be taken into consideration and the plant must be designed correspondingly e g pressure loss in lines depending on nominal diameter a
15. for the weight of the dosing pumps e g wagon During transportation without oil the dosing pump should be lying Otherwise it must be tightened to the transportation device Jesca 2 General purpose Motor driven diaphragm dosing pumps of series MEMDOS MR ZMR are used in industry in process engineering and in water and wastewater processing Standard versions are dosing pumps with the head located on the left hand side MR L Versions with the head on the right hand side can be supplied MR R MEMDOS ZMR pumps are tandem dosing pumps with two dosing heads of equal size or combinations of different dosing heads ZMR The power of the motor is the same for simplex and duplex dosing pumps because the diaphragms operate in a push pull arrangement If no control is required for constant metering the motor is connected directly to the terminal box In this case MEMDOS MR ZMR pumps are used Three phase and a c motors are available To change the dosing capacity either the stroke length can be adjusted from 0 to 100 or the speed of the three phase motor can be controlled by means of a separate frequency converter The MEMDOS MR ZMR is optionally available with electrical remote adjustment ATE allowing the dosing pump to be used as actuator in control loops The stroke length is adjusted via momentary contacts or controllers with relay output In the case of duplex pump MEMDOS ZMR each head may be f
16. gear oil can be determined by reading the oil gauge the oil should cover half of the oil gauge 10 2 Maintenance of bearings The upper bearing of the pinion shaft is a sealed and permanently lubricated ball bearing The other rolling bearings in the gearbox and the plain bearings of the diaphragm rod are lubricated by the gear oil The oil also dissipates the heat generated All bearings must be examined for wear after 5000 hours of operation The service life of the rolling bearings depends on the loads to which they are subjected The bearings must be replaced after 5000 hours of operation if the dosing pump is operated at maximum load Jesca 10 3 Maintenance of ATE servomotor optional The ATE servomotor is lubricated for life before leaving the factory Nevertheless regular checks are recommended if the drive works under difficult operating conditions such as a high ambient temperature or continuous operation For relubrication of the ATE gear use molybdenum disulfite e g Molykote BR2plus and OKS400 10 3 1 Manual adjustment of the ATE drive Type AR30W In the case of an electrical failure of the ATE servomotor type AR30W it can be adjusted manually by means of a hand crank This part is available as accessory Part No 32 587 For manual adjustment proceed as follows 1 Switch off power supply to the ATE servomotor 2 Remove ATE cover 3 Switch on main drive motor 4 Insert hand crank in corresponding
17. ing Only the original diaphragm may be fitted when ordering replacement parts 9 03 Jesca 12 Spare parts Genuine spare parts from Lutz Jesco must be used Wear parts for the MEMDOS MR are available as a set of spare parts containing the following Pump diaphragm Valve balls Valve seats all valve seals Pump Type Dosing head seal material PP Hypalon PP Viton 1 4571 AF MR 140 210 PP Hypalon PP Viton 1 4571 AF PP Hypalon PP Viton 1 4571 AF MR 400 980 PP Hypalon PP Viton 1 4571 Hypalon 1 4571 Viton 13 Troubleshooting TYPE OF FAULT Pump notdelivering POSSIBLE CAUSE Valves leaking RECOMMENDEDACTION Clean and remove air from valves See also startup of pump Tighten screw connections Valves incorrectly installed Reassemble valves Ensure that the valve balls of suction and discharge valve are located above the valve seats Suction filter foot valve or suction pipe leaking or blocked Clean and seal suction line No stroke movement Return spring broken Replace spring Consider density of the chemical Suction lift too high Pump delivering too little or irregularly Valves blocked or leaking Clean and re seal valves Pump delivering too much Pressure on suction side too high pump siphoning Install backpressure valve in discharge line Fr
18. itted with a separate servomotor and adjusted independently Upon request also increased safety type or air tight servomotors can be supplied 3 Functional The gear contains a single stage worm wheel set resetting of the spring The stroke length is adjusted runing in an oil bath just as the roller bearings Dosing by limiting return travel of the poppet using a happens while the push rod is displaced by means manually adjustable eccentric as stop An of an eccentric The suction stroke is caused by the adjustment range from 0 to 100 is possible 4 Technical data 4 1 Technical data MEMDOS MR Simplex dosing pumps max pressure at max pressure strokes min diaphragm weight 115 115 140 140 210 210 290 290 400 400 600 600 980 980 max pressure 10 10 10 10 5 5 4 at max 135 135 160 160 240 240 290 290 440 440 640 640 990 990 pressure ml Hub 20 37 37 48 165 165 165 strokes min 101 70 101 101 47 70 101 diaphragm 90 120 150 185 185 185 weight 38 38 38 40 50 50 50 48 48 48 53 60 60 60 75 140 75 600 115 210 115 290 115 980 140 600 210 290 210 980 290 980 max pressurg bar at max l h pressure ml Hub strokes min diaphragme weight 4 2 Electrical motor data Elect motor Part Circuit Voltage Current Freque
19. ive force Plast parts especially PVC parts can be screwed and unscrewed more easily if the thread is lubricated with silicone grease before Note For this purpose the compatibility with the chemical to be metered must be checked 7 1 1 Installation of MEMDOS MR with ATE servomotor The ATE servomotor is connected to the pump and adjusted in the factory For installation a sufficient mounting space of at least 150 mm must be provided for later maintenance works The electrical connection of the ATE drive must correspond to the local rules and may only be carried out by technical personnel The circuit diagrams chapter 7 5 1 show the two basically realizable possibilities of connection Cable type and cable cross section must be chosen according to the motor data The cable passage to the motor terminal box must be made professionally We recommend gland screw connections with traction relief The required protection class must be ensured by professional installation of the electrical connections Caution Please take into account that the ATE drive can only be controlled with the main motor running i e the ATE drive must be locked electrically Otherwise the adjusting eccentric wears out frequently or is destroyed 9 03 7 2 Installation location Caution Ambient temperatures exceeding 40 C are not permitted Radiant heat of apparatus and heat exchangers must be shielded so that the
20. ncy Prot class Type No V consumption A Hz ISO cl IP AF 80 4A 11 78629 AY 230 400 2 6 1 55 50 55 AF 80 4B 11 78903 AY 230 400 3 5 2 0 50 55 AF 80 4B 11 78982 AY 230 400 3 5 2 0 50 55 Motor fitted with cold conductor thermometer probe 8 Technical changes are always reserved without notice 9 03 4 3 Technical data ATE drives Types AR 30W23 and AR 30W23S Design Jesca AR 30W S Reversible a c motor with self locking reduction gear Use for controllers with switching output 3 point control for controllers with continous output 2 10V or 4 20mA Auxiliary voltage Control 230V 15 50 60 Hz 24V 20 50 60 Hz 2 10V or 4 20mA Power consumption 2W 7W Regulating time bevel 360s 270 0 100 Position repeating signaling for remote display Potentiometer 0 5 W 0 1000 Q 0 100 0 620mV 0 100 Limit switch Internal limit switches for limiting angle of rotation Signaling offinal position via terminals 16 and 17 Internal limit switches for limiting angle of rotation Protection class IP 55 EN 60529 Ambienttemperature 20 60 C Options 2nd potentiometer 0 1000 20 5 W Limit switches 2 off Types WAN 1 and WAN 1 S Design max 250V 1A Reversible a c motor with self locking reduction gear Use for controllers
21. nd length Note The designer and the user are responsible to make sure that the whole plant including the dosing pump is constructed so that neither plant equipment nor buildings are damaged serverely in the case of chemical leakage due to the failure of wear parts e g diaphragm rupture or burst tubing If the chemical plant represents a potential source of danger the installation must be carried out so that no unreasonably high consequential damages occur even if the dosing pump fails Therefore we recommend to install leakage probes and containment tanks Dosing pumps are produced according to highest quality standards and have a long service life Nevertheless some parts are subject to wear e g diaphragm valve seats valve balls To ensure long operating life visual checks are required regularly Operating and maintenance personnel must be able to access the pump easily Periodic maintenance protects the dosing pump against shutdowns 12 Technical changes are always reserved without notice To increase the dosing accuracy and to ensure the functional reliability we recommend to use additional fittings These include backpressure valves relief valves leakage probes low level indicators and especially pulsation dampers to prevent pressure surges as shown in the installation examples chapter 7 6 Always use appropriate tools for the installation of plastic connecting parts To avoid damage never apply excess
22. opening as shown below and turn into desired direction Caution The final positions must not be crossed 5 After manual adjustment remount the cover Insert hand crack and turn 17 10 4 Replacing the diaphragm In the case of a rupture the diaphragm can be replaced as follows 1 The chemical contained in the metering line is drained so that the metering lines become pressureless Please observe the aforementioned safety instructions for this purpose 2 Theflow rate ofthe metering pumpis setto zero while the motoris running Thus the diaphragm is moved to its front end position 3 The head is removed using an appropriate tool 4 Graspedatthe edge the diaphragm can now be turned out counterclockwise 5 Before installing the new diaphragm the diaphragm flange section must be cleaned of the chemical Otherwise the diaphragm might be attacked from the rear side 6 Thenewdiaphragmis turned in clockwise until it sits close grease screw thread 7 The stroke adjustment is now set to maximum while the motor is running 8 Now the head is remounted by tightening it carefully with the screws Screws must be tightened crosswise e g top left bottom right top right bottom left The diaphragm is not properly sealed if the tightening torque is too low If it is too high the dosing head will be damaged Required tightening torque for dosing head screws Diaphr
23. r low flow rates resulting from faulty pump settings or incorrect and insufficient installation of peripheral fittings 16 Technical changes are always reserved without notice 9 03 9 1 Start up of MEMDOS MR with ATE servomotor Switch on the main drive motor of the metering pump With an electrical interlocking system only then can the ATE drive be adjusted To check the direction of rotation send short control pulses to the ATE servomotor If the direction of rotation is wrong the supply lines terminals 2 and 3 in the case of direct controls are reversed The ATE servomotor must be moved to the final positions in order to check the limit stop mechanism of the integrated limit switches When leaving the factory the angle of rotation is 270 If required the angle of rotation and thus the maximum flow rate can be restricted To achieve this the upper trigger cam is shifted by the required value 10 Maintenance 10 1 Lubrication The diaphragm dosing pump MEMDOS MR requires little maintenance The gear of the pump is lubricated with gear oil of viscosity class ISO VG 460 according to DIN 51519 corresponds to SAE 140 according to DIN 51512 The enclosed first filling must be renewed after approximately 500 operating hours Further oil changes should be carried out every 5 000 operating hours The filling capacity is about 0 75 for simplex gears and about 0 9 for duplex gears The actually required quantity of
24. rs optional 17 10 3 1 Manual adjustment of the ATE drive Type AR 30 W 17 10 4 Replacing the diaphragm eene nennen 18 11 Explosion proof dosing pumps J l U 18 11 1 Generdl u ken lesen 18 11 2 Special Conditions ee nt 18 11 3 Dosing of flammable media mnn 18 12 Spare parts oio nino iaai ara iaaa AME EIRARRRERANERR ER RV BAR GEO LER RE STE e eR DPA eR 19 13 Tr nubleshoo ig uuu uuu a ARAE AA 20 14 Certificate of conformity U u u uuu 21 22 Hypalon and Viton are registered trademarks of DuPont Dow Elastomers Teflon is a registered trademark ofthe DuPont Company Hastelloy is a registered trademark of Haynes International Inc 4 Technical changes are always reserved without notice 1 Safety 1 1 General This Operating Manual contains basic information to be noted during installation operation and maintenance It is therefore essential that the Manual be read by the fitter before installing and commissioning the pump system as well as by the relevant operating personnel owner of the pump System It must remain accessible at the pump System for reference at all times In addition to the general safety instructions set out under this main heading Safety the special safety precautions set out under the other
25. rting the pump system 6 Technical changes are always reserved without notice 1 8 Unauthorized modification and production of spare parts The machine may only be modified or converted in consultation with the manufacturer Genuine spare parts and accessories authorized by the manufacturer ensure greater safety Liability for damage or loss may be extinguished if other parts are used 1 9 Impermissible modes of operation The operational safety of the pump supplied can only be guaranteed when it is used in conformity with its intended use as specified in our contract documents especially the letter confirming the order The limit values specified in these documents must never be exceeded 1 10 Dosing of chemicals A When working on dosing installations the local safety rules must be observed e g wear personal protective clothes Before working on the dosing pump and plant disconnect it from the mains supply and protect it against reconnection Before the power supply is switched on again the dosing lines must be connected so that any chemical left in the dosing head cannot spurt out The dosing head of the pump as well as connections and lines of the plant may be under pressure Working on the dosing plant requires special safety precautions and may only be carried out by instructed technical personnel Before startup all screwed connections must be checked for correct tightness and if necessary must be tigh
26. ssssa 8 4 2 Electrical motor data eene nennen nennen 8 4 3 Technical data ATE drIV6s u dod node ee ala 9 5 Performance CUfVes oorr aan sasa CORR ARR ERE SEEN EX NERA 10 6 Type COMES u uuu u RHODE ceu n de hide eie 11 T dnstallatiODi qas m u ua A ERKRENRRRRORRRRARRRRARRRRRRAARKRRRRAREM RR 12 16 7 1 General notes of instruction 11 u 12 7 1 1 Installation of MEMDOS MR with ATE servomotor 12 7 2 Installation location u te ene nnd edes xn a 13 7 3 Drain pipe nee hen he ee arena 13 7 4 Injection fitting assembly nn 13 14 7 9 Electrical Connection en 14 15 7 5 1 Circuit diagram ATE servomotors a 15 7 6 Installation example 16 8 Siirokel engthadjustment L LIU a 16 9 Start up ERR RR RE RR ERR RR RR RR RERRE GRE ERE RR ETE ENERER EN deetenseneverneeneavinesvanen 16 17 9 1 Start up of MEMDOS MR with ATE servomotor 17 10 MAINT MANGE u uuu RRRRRERERERNPERRURREENRRSKARRERUEERRRRERAR RRRRRRRRRRRARE ERR RAKREER SERERE ERRES 17 18 10 1 Eubrication urn anne ehe ree he n emnt eher 17 10 2 Maintenance of bearings asas 17 10 3 Maintenance of ATE servomoto
27. sure that the relevant personnel are fully familiar with and have understood the contents of the Operating Manual 1 4 Hazards due to non compliance with the safety instructions Failure to comply with the safety instructions may endanger not only persons but also the environment and the pump system Non compliance with the safety instructions can lead to the loss of all entitlement to damages The following hazards in particular may arise Failure of major pump system functions Failure of specified methods for maintenance and repair Danger to persons due to electrical mechanical and chemical effects Danger to the environment due to leakage of hazardous substances 1 5 Safe operation The safety instructions contained in this Operating Manual must be observed The owner is responsible for ensuring compliance with local safety regulations 1 6 Safety instructions for the owner operator If hot or cold machine parts are a source of danger precautions must be taken by the customer to prevent contact Guards on moving parts must not be removed when the machine is in operation Leakages e g at the shaft seal of hazardous substances e g explosive toxic hot substances must be discharged in such a way as to exclude all danger to persons and the environment Statutory regulations must be observed Danger due to electric power must be excluded for further details refer to the VDE regulations and the r
28. tened up using appropriate tools If connections at the dosing head are unscrewed during operation for venting or other reasons leaking chemical must be removed professionally This is the only way to avoid the danger of physical injury and corrosion atthe dosing pump Leaking chemical might also destroy the diaphragm at its mounting points 9 03 When changing the chemical check whether the materials used for the dosing pump and the other plant parts are chemically resistant If there is the danger of a chemical reaction between different media a thorough cleaning first is mandatory To operate the pump mount the fan shell in order to ensure sufficient cooling of the motor A Adjustment works in the interior of the ATE drive optional must be carried out carefully Connections and internal limit switches might be alive Additional limit switches might be alive even with the auxiliary voltage switched off ATE drive A After installation works at the ATE servomotor or before startup remount the cover 1 11 Scope of delivery Note Please unpack the dosing pump and ordered accessories carefully in order not to miss small parts Immediately compare the scope of delivery to the delivery note If there are any discrepancies try to find out the reason For the transportation of the dosing pumps no special fittings are required It is however advisable to choose a transportation method which is appropriate
29. with switching output 3 point control for controllers with continuous output 0 4 20mA Auxiliary voltage Control 230V 10 50 60 Hz Othervoltages uponrequest 230V 10 50 60Hz 0 4 20mA Power consumption approx 11 5 W Regulating time bevel 360s 270 0 100 Position repeating signaling for remote display Potentiometer 0 5 W 0 1000 Q 0 100 0 4 20mA as an option only Limit switch Internal limit switches for limiting the angle of rotation Signaling ofthe final position via terminals 4 and 5 Protection class IP 54 according to DIN 40050 Ambienttemperature max 60 C Options 2nd potentiometer 0 1000 20 5 W Limit switches 2 off max 250V 1A 5 Performance curves run with water suction lift approx 0 5 m l h MR 50 70 1bar 5bar 60 10bar 50 40 30 20 10 Scale Ih MR 115 E 140 10bar 120 100 80 60 40 20 Scale l h MR 210 350 1bar 300 5bar 250 10bar 200 150 100 50 Scale l h MR 400 600 1bar 500 3bar 5bar 400 300 200 100 Scale l h MR
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