Instruction Manual
Contents
1. esseeeee 6 2 Start Up Priming for Pump Supplied with Multi Function Valve sse 6 3 Start Up Priming without Accessory Valve 6 4 Output Adjustment sse 6 5 Total P mp Outp t aee as Methods of External Triggering or Pacing AT BT Cr7 and P7 PU mps te teste e ott tunuedsrtula Calibration inni earr a ea Ea E te c eee 8 1 jPress re Cohtrol iren ede 8 2 Calibration Procedure On Site Volumetric Calibration in External Mode Spare Parts Replacement Routine Maintenance 9 1 Depressurizing the Discharge Line For Pumps Equipped with a 3 FV or a 4 FV Only 9 2 Liquifram Diaphragm Replacement 93 Cartridge Valves Seal Rings Value Balls and Injection Check Valve Spring Replacement sssssss Checking Pump for Proper Zero Position Stroke Knob 10 1 Type I Push on Knob eee 10 2 Type II Collet Knob eeeeeneneee Troubleshooting rete urere pter tene EPU Resistance Chartissa pinnana ieaiaia 1 0 Introduction LMI is the world s most versatile manufacturer of economical and efficient metering pumps This manual addresses the installation maintenance and troubleshooting procedures for manually and externally controlled pumps LMI has a worldwide network of stock2. Bleed Function Manually adjusted valve provides continuous bleed of entrapped vapors from Sodium Hypochlorite or Hydrogen Peroxide Flow 3 e LMI 4 FV Accessory Prevents syphoning 3 f when pumping into Recirculating suction side of Pump recirculating pump Vacuum AT Lae LMI Pump D LMI 4 FV Accessory rid Prevents over pumping and syphoning when pumping downhill into low or Tank no pressure Tank Injection Check Valve To Injection Point Typical 4 FV Installation D 3 Flow 4 5 Multi Function Valve Installation To install the multi function valve remove the yellow screw cap on the top of the pump head and screw in the valve so that it contacts the seal ring An additional 1 8 1 4 turn may be necessary to prevent leakage 1 4 O D tubing connects to the side of the valve and acts as a return line to the solution tank To ensure priming this tubing must NOT be submerged in the solution This return line tubing must be secured to ensure pumped solution will safely return to supply tank Discharge 1 4 Tubing A Connector X CxO _ 205 am 1 Inch 1 L 25 mm Bottom Tubing To To in Fitting Pump Solution Tank Push and hold while Head or Drum tightening co
3. Foot Valve E 2 0 in 50 mm Tilted Sideways WILL NOT PRIME for Sediment Accumulation INCORRECT CORRECT Proper Foot Valve Position Injection Check Valve and Discharge Tubing Installation The Injection Check Valve prevents backflow from a treated line Connect the Injection Check Valve to your DISCHARGE outlet line Any size NPTF fitting or pipe tee with a reducing bushing to 1 2 NPTF will accept the injection check valve Use Teflon tape or pipe dope to seal the pipe threads only When installing the Injection Check Valve be sure to position it so that the valve enters the bottom of your pipe in a vertical position Variations left and right within 80 are acceptable see illustration below After cutting an appropriate length of tubing connect tubing to the injection check valve then back to the discharge side of the pump head valve or discharge fitting top side making sure it does not crimp or come into contact with hot or sharp surfaces see Tubing Connections Section 4 3 Pipe Cross fer 2 Section WH VA 7 QUA 1 O A Y Wy X Z 77 AUN W Z Yj 7 Z 4 A e CORRECT a Use Teflon 40 Reducing Bushing _ Tape here on Tl Variation 1 to 1 2 NPT IR Pipe threads only LN Acceptable Customer Supplied ES giis SN Injection TI Do NOT use HN Injection Check Valve Teflon tape Check Valve On machined X j Threads A I 20 Flow Flow Typic
4. 2 Worn Seal Rings 3 Ruptured Liquifram 4 Incorrect stroke length 5 Tubing run on discharge may be too long 6 Clogged Foot Valve strainer Failure to Run 1 Pump not turned on or plugged in 2 EPU failure 3 Pulser failure Excessive Pump Output 1 Syphoning Pumping downhill without a multi function valve 2 Little or no pressure at injection point 3 Excessive strokes per minute 40 SOLUTION 1 Cut about 1 in 25 mm off tubing and then replace as before 2 Replace fitting if cracked Carefully hand tighten fittings DO NOT USE PIPE WRENCH Oncefitting comes into contact with seal ring tighten an additional 1 8 or 1 4 turn 3 Replace balls and seal rings see Section 8 3 Spare Parts SP 4 Consult your local distributor for alternate materials 1 Injection pressure cannot exceed pump s maximum pressure See pump data plate 2 Worn seal rings or cartridge valves may need replacement see Section 9 3 Spare Parts SP or RPM Pro Pac kit 3 Replace Liquifram see Section 9 2 4 Check zero on pump Re zero pump see Section 10 0 5 Longer tubing runs may create frictional losses sufficient to reduce pump s pressure rating Consult factory for more information 6 Remove Foot Valve strainer when pumping slurries or when solution particles cause strainer to clog 1 Turn on or plug in pump 2 Disassemble pump and meas
5. a multi function valve and you feel it is needed in your application it can be purchased as an accessory Contact your local LMI stocking distributor 4 4 1 Three Function Valve 3 FV 1 Pressure Relief If the discharge line is over pressurized the valve opens sending solution back to the supply tank Line Depressurization Opening the relief knob provides line drain back to the supply tank Priming Aid Opening the relief knob assists in priming the pump by venting the discharge line to the atmosphere 4 4 2 Four Function Valve 4 FV 1 Pressure Relief If the discharge line is over pressurized the valve opens sending solution back to the supply tank Line Depressurization Opening the relief knob provides line drain back to the supply tank Anti Syphon Prevents syphoning when pumping solution downhill or into a vacuum Back Pressure Supplies approximately 25 psi back pressure to prevent overpumping when little or no system back pressure is present 4 4 3 Bleed Four Function Valve Bleed 4 FV 1 DO NOT submerge return line in solution M 1 Line Depressurization Opening the relief port provides line drain back to the supply tank Anti Syphon Prevents syphoning when pumping solution downhill or into a vacuum Back Pressure Supplies approximately 25 psi back pressure to prevent overpumping when little or no system back pressure is present
6. turn stroke knob counter clockwise Q toward zero or end of black or red band on dial LISTEN to the clicking as the pump is running The pump should operate quietly at the zero position no clicking Ifthe pump continues to click at zero or stops clicking before zero is reached the pump zero must be reset see Section 10 1 or 10 2 10 1 Type Push on Knob Re Zeroing and Stroke Knob Disassembly and Assembly Remove stroke knob from the pump by grasping the knob firmly and pulling it toward you Pry off the yellow cap Place the knob on a flat surface Using needle nose pliers squeeze the inner section together while lifting the outer section up Push the inner section back onto the D shaped stroke shaft With the pump running zero the pump by turning the inner section of the knob counter clockwise until the pump stops clicking 7 Position the outer section of the knob so that the pointer aligns with zero on the nameplate or end of the black or red band 8 Push down on the outer section a snap sound indicates parts are locked together 9 Replace the yellow cap over the outer section of the knob aligning the tabs on the cap with the slots inside the knob Stroke Knob Assembly Type Knob Pointer Knob Base 36 10 2 Type Il Collet Knob Re Zeroing and Stroke Knob Disassembly and Assembly Remove Yellow Cap Hold knob with soft jaw pliers Disconnect knob by loosening 5 16 8 mm collet n
7. Contact your local LMI distributor for further information A Tubing Connections Inlet and outlet tubing or pipe sizes must not be reduced Make certain that all tubing is SECURELY ATTACHED to fittings priorto start up see Section 4 3 Tubing Connections ALWAYS use LMI supplied tubing with your pump as the tubing is specifically designed for use with the pump fittings It is recommended that all tubing be shielded to prevent possible injury in case of rupture or accidental damage If tubing is exposed to sunlight black UV resistant tubing should be installed Check tubing frequently for cracks and replace as necessary A Fittings And Machine Threads All fittings should be hand tightened An additional 1 8 1 4 turn after the fitting contacts the seal ring may be necessary to provide a leak proof seal Excessive overtightening or use of a pipe wrench can cause damage to the fittings seals or pump head All LMI pumps have straight screw machine threads on the head and fittings and are sealed by the seal rings or O rings DO NOT use Teflon tape or pipe dope to seal threads Teflon Tape may only be used on the 1 2 NPT thread side of the Injection Check Valve as well as stainless steel liquid end connections Plumbing Always adhere to your local plumbing codes and requirements Be sure installation does not constitute a cross connection Check local plumbing codes for guidelines LMI is not responsible for imprope
8. Divide into this the number of strokes to determine the volume of solution pumped per stroke Example 500 ml in 100 strokes 5 0 ml per stroke Multiply this by your expected stroke rate per minute per hour or per day and compare with desired output requirements 8 Adjust Stroke Length Knob lower knob to your best estimate of required correction and repeat calibration procedure Spare Parts Replacement Routine Maintenance Depressurizing the Discharge Line For Pumps Equipped with a 3 FV or a 4 FV only A 30 ALWAYS wear protective clothing face shield safety glasses and gloves when performing any maintenance or replacement on your pump A A 2 Read steps 1 and 2 below before proceeding 1 Be sure the Injection Check Valve is properly installed and isoperating Ifa shutoffvalve has been installed downstream of the Injection Valve it should be closed Be sure your relief tubing is connected to your multi function valve and runs back to your solution drum or tank 1 4 turn the black knob on the valve The discharge line is now depressurized Keep valve open until solution drains back down the discharge tubing into solution drum or tank Then 1 4 turn knob to normal position 9 2 Liquifram Diaphragm Replacement ALWAYS wear protective clothing face shield safety glasses and gloves when working near or performing any maintenance or replacement on your pump See MSDS information from solution s
9. LMI Pump LMI Pump Rear Mount Front Mount Solution Tank 2 0 in 50 mm Space for Sediment i Accumulation Fou 4 2 3 Suction Lift Tank Mount The pump may be mounted on a molded tank provided there is a recess to keep the pump stationary LMI 10 gallon tank part no 27421 35 gallon tank part no 27400 and 50 gallon tank part no 26350 have molded recesses for pump mounting Pressure Line m Tee e Injection Check Valve LMI Pump ie ue LMI 50 Gallon Solution Tank Ceramic Weight Foot Valve 2 0 in 50 mm 2 0 in 50 mm Space for Space for Sediment Sediment Accumulation Accumulation 4 2 4 Suction Lift Shelf Mount The pump may be mounted on a shelf customer supplied maintaining a suction lift of less than 5 ft 1 5 m An LMI mounting kit part number 10461 is available for securing the pump to a shelf Flow Flow Injection Check Valve Anti Syphon x Pressure Relief LMI Pump Valve Optional Accessory Solution Drum 2 0 in 50 mm gt Space for Sediment Accumulation N 4 3 Tubing Connections A Useonly LMI tubing B DO NOT USE CLEAR VINYL TUBING ON THE DISCHARGE SIDE OF THE PUMP The pressure cre
10. NPN Transistor White l Base goes high to trigger pump 7 2 Black 3 PNP Transistor White 1 Base goes low AE to trigger pump 2 Black PO iem Opto P ON E 2 Isolator L J Blak Switch or transistors must be capable of switching 5F DC at 2 milliamperes Mini mum time in low impedance state ON is 50 milliseconds Minimum time in high imped 1 ance state OFF is 100 milliseconds 4 OO OO or Pacing A7 B7 C7 and P7 Pumps DPC 40 yos lo ff E 5 zl Higher Frequency Pulses 220 240V cj 72 VERFEREENENNENT 50 60Hz Lower Frequency Pulses 4 20 milliamp DC MICROPACE 4 20 milliamp DC A D CONVERTER MICROPACE Higher Frequency Pulses 4 DIGIT DIVIDER EILIEEEEREHEHHIEIII MP 400 m Lower Frequency Pulses MICROPACE 4 DIGIT MULTIPLIER MP 500M 26006 Pulse Transmitter co Programmable Ivider Programmable a be f el il Divider OS o RFP Flowmeter M Ur TY t FC Flowmeter Contactor KS HI H x 27 28 8 0 Calibration Once installation is complete and the approximate output has been determined the pump should be calibrated to adjust speed and stroke for your actual desired output Calibration cylinders may be purchased from your local LMI distributor ref publication 1798 1 5 Be sure the pump is primed and discharge tubing and Injection Check Valve are installed as they would be in normal ser
11. _____ instruction Manual Electronic Metering Pumps before installing or servicing any metering Carefully read and understand all precautions l For file reference please record the following data Model No Serial No Installation Date Installation Location When ordering replacement parts for your LMI Metering Pump or Accessory please include complete Model Number and Serial Number of your unit 8 Post Office Square Acton MA 01720 USA TEL 978 263 9800 FAX 978 264 9172 www lmipumps com E e Replaces same of Rev M 8 00 ERE 1615 N 6 01 Contents 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 INtrOdUCTION sieve Ae Hen e at ial f ed t a 1 1 Spare Parts oed ore p eie tis Unpackirng rnit e e ep mire rete e ege un Pre Installation Instructions emn InstallatiOn ior deterret rp ERE Re Rep EE 4 1 Pump Location and Installation eesseeeees 4 2 Pump MOUNN iisisti iniinis aeiiae 4 3 Tubing Connections Aesan air e ae a a oat 4 4 Multi Function Valves 4 5 Multi Function Valve Installation eesseeeses 4 6 Foot Valve Suction Tubing Installation 4 7 Injection Check Valve Installation eeeeeess Liquid End Parts List eerte teres Start Up and Adjustment seeeneenes 6 1 Output Adjustment Controls
12. al Injection Check Valve Installations 5 0 Liquid End Parts List Flapper valve Injection check valve body Injection check valve spring Check valve ball Seal ring Cartridge valve Cartridge valve o ring Cartridge valve washer Valve seat Clamp ring Ferrule Clamp sleeve Tubing adapter Coupling nut Discharge tubing Valve housing Multi function valve High viscosity spring Liquifram 20 Pump head 2 Pump head screw 22 Suction tubing 23 Foot valve seat 24 Foot valve screen 25 High viscosity valve seat 26 H V tubing clamp 27 H V suction tubing 28 H V Tubing x 1 2 NPT connector 29 Injection check valve assembly 30 Discharge valve assembly 31 Suction valve assembly 32 Pump head assembly 33 Foot valve assembly 34 Injection Seat PTFE 35 Ceramic Weight 36 Return Line 37 Cap ASM Black Knob 38 Cap ASM Yellow Knob 39 Multi Function Valve Body 40 Nut Multi Function Valve 41 Screw Multi Function Valve 42 Return Line Coupling Nut 43 Adjustment Screw B 4 FV 44 Cap B 4 FV 45 Plug B 4 FV 46 Gasket B 4 FV 47 Small O Ring B 4 FV Large O Ring B 4 FV wo 00 10tA 4 UC b2 OMDADMNABHBWNK SO 9 Ba o6 2 4 fj 0 95 40 Bo e 47 NOT ORS ORS OR P NeLuoeD IN GOK 6 lt c G0 8 B MOKAO SS P K 7 oe Ba Sor or Sor ps em 26 y W4 NOTE This illustration is a visual representation ofall LE components Liquid ends will not include all par
13. applications requiring infrequent stroking 6 2 Start Up Priming for Pump Supplied with Multi Function Valve A Read this entire section completely before proceeding When all precautionary steps have been taken the pump is mounted and the tubing is securely attached you may now start priming the pump 1 Plug in or switch the pump on 2 While the pumpis running set the speed knob at 80 and the stroke knob at 100 Jf the pump is equipped with pressure control turn fully clock wise 3 1 4 turn open the relief side black knob of the multi function valve 3A Bleed 4FV only With screwdriver rotate bleed adjustment screw counter clockwise 2 full turns When solution begins to flow through translucent bleed return tubing the pump is primed Stop pump 4 The suction tubing should begin to fill with solution from the tank 5 A small amount of solution will begin to discharge out the return line of the multi function valve Once this happens 1 4 turn or release the knob and SHUT THE PUMP OFF If pump is not equipped with an on off switch disconnect the power cord 6 The pump is now primed 6A Bleed 4FV only 8 Start pump and let pump inject solution into the discharge line b Close the bleed adjustment screw by rotating it clockwise Q with a screwdriver Now adjust the pump stroke length and or speed frequency to a range approximately 25 higher than you would normally want for
14. ated by the pump can rupture vinyl tubing C Before installation all tubing must be cut with a clean square end D Valveand head connections from the factory are capped or plugged to retain pre prime water Remove and discard these caps or plugs before connecting tubing A DO NOT USE PLIERS OR PIPE WRENCH ON COUPLING NUTS OR FITTINGS Tubing Connection Tubing Connection 1 4 O D 250 Tubing 3 8 O D 375 Tubing S 1 4 OD Tubing 3 8 OD di Tubing F i Coupling orce tubing Nut M Coupling Nut completely __ over entire Clamp Ferrule nozzle into Ring groove Push and hold tubing down 17 while tightening oce 25 mm Bottom Tubing coupling nut e d in Fitting oe m Push and hold MOONE Fitting Nan tubing down while tightening Qk coupling nut E Tubing Connection Pipe Thread Connection 1 2 O D 5 Tubing 1 4 or 1 2 NPT Da 1 2 OD Tubing a Coupling Nut NPT Pipe I Connection CON Clamp Ring E d ERE Apply Teflon completely over tape here Nozzle P entire nozzle Push and hold Customer gd Fitting tubing down pipe connections while tightening coupling nut 4 4 Multi Function Valves Your pump may be equipped with one of the following multi function valves 3 FV 4 FV Bleed 4 FV or standard discharge valve If your pump is not equipped with
15. ing representatives and authorized repair centers to give you prompt and efficient service Please review this manual carefully Pay particular attention to warnings and precautions Always follow good safety procedures including the use of proper clothing eye and face protection This manual is for Series A B C E J5 and P pumps 1 1 Spare Parts LMI recommends replacing the elastomeric components of the pump on an annual basis RPM Pro Pacs and spare part kits are available from your local LMI Master Stocking Distributor Example Your pump consists of two main components 1 The Drive Assembly and 2 The Liquid Handling Assembly E Tn CI A151 3925S Drive Liquid Handling Assembly lj i D 2 0 Unpacking Check List Your carton will contain many or all of the following items Please notify the carrier immediately if there are any signs of damage to the pump or its parts Please refer to the enclosed Instruction Supplement for an illustration and electrical diagram of your complete pump Metering Pump Foot Valve Tubing Depending on the model your carton may contain 0 1 2 or 3 rolls of tubing Your carton may contain a roll of clear Ceramic Foot Valve Weight vinyl tubing this is for connection to the SUCTION SIDE OF THE PUMP HEAD ONLY Instruction Supplemen RE Injecti
16. ing solution Turn the pump on to flush the head assembly Once the pump has been flushed lift the Foot Valve out and continue to pump to let air into the pump head until pump is purged of water or neutralizing solution Once the pump has been flushed lift the Foot Valve out and continue to let air into the pump head until pump is purged of water or neutralizing solution If the liquid cannot be pumped due to Liquifram rupture with protective clothing gloves and face shield carefully disconnect the tubing and four screws to remove the head Immerse the head in water or other neutralizing solution Spare part replacement kits include specific instructions for valve replacement Please follow the instructions included with the replacement kit IMPORTANT Before disassembling the check valves note the orientation of the valve 3 Carefully disconnect one tubing connection and fitting at a time then remove and replace the worn valve If necessary carefully loosen stuck valves by prying side to side using a small screwdriver through the center hole of the valve 4 Install new check valves in each location 34 A IMPORTANT Note correct orientation of each check valve Install the new spring in the Injection Check Valve Depressurize and drain pipeline or isolate L C V point using valves so that L C F can safely be disassembled 10 0 Checking Pump for Proper Zero Position Stroke Knob With pump running
17. ion The pump is mounted at the base of the storage tank This installation is the most trouble free and is recommended for very low outputs solutions that gasify and high viscosity solutions Since the suction tubing is filled with solution priming is accomplished quickly and the chance of losing prime is reduced When pumping downhill or into low or no pressure system a back pressure anti syphon device should be installed to prevent overpumping or syphoning Although popular for all solutions LMI recommends flooded suction installations for all high viscosity fluid applications Tee Dee Injection Check Valve LE LMI 35 Gallon Solution Tank d U ih NCORRECT CORRECT Avoid this type of false flooded suction e Injection E Check Vent E Valve M Polymer Polyelectrolyte LMI Pump Drum S Pump e Barrel Cradle CORRECT 4 2 2 Suction Lift Wall Bracket Mount The pump may be mounted using an LMI Wall Mount Bracket Assembly part no 34643 directly above the solution tank A pump mounted in this manner allows for easy changing of solution tanks or drums g 3 LJ TT p Pressure Injection n Line Check Valve
18. l L Series C78 C13 C14 C73 C74 C77 C93 C94 E73 E74 All M Series Liquifram on M Series pumps only must be bottomed completely turned all the way in Do Not Use Straight Edge 6 Grasp the outer edge of the Liquifram and adjust by screwing it in or out so that the center of the Liquifram is flush with the outside of the spacer edge see illustration below STRAIGHT EDGE LMI LIQUIFRAM LMI SPACER NW GAP NO GAP Z ma INCORRECT CORRECT INCORRECT Liquifram is flush with spacer and straight edge 7 Once the Liquifram is properly positioned remount the pump head to the spacer using the four 4 screws Tighten in a criss cross pattern After one week of operation recheck the screws and tighten if necessary 33 9 3 Cartridge Valves Seal Rings Valve Balls and Injection Check Valve Spring Replacement and gloves when working on orperforming any maintenanceor replacement on your pump See MSDS information from solution supplier for additional precautions ALWAYS wear protective clothing face shield safety glasses 1 Refer to the LMI Metering Pump Price List for the proper Spare Parts Kit or RPM Pro Pac kit number or contact your local LMI stocking distributor 2 Carefully depressurize and disconnect the discharge line see Section 9 1 in this manual Place the Foot Valve into a container of water or other neutraliz
19. mp While running set the stroke knob to zero and turn the pump off See Section 10 0 for proper zero 3 With the unit off unscrew the Liquifram by carefully grasping the outer edge and turning it counter clockwise Discard old Liquifram Remove the Liquifram disk if so equipped located behind the Liquifram and check that the size code matches the size code on the replacement Liquifram see illustration 4 Reinstall the disk so the alignment pin on the disk if present seats in the recessed hole in the EPU A Becarefulnottoscratch the Teflon face ofthenewLiquifram For Series B C amp E For Series A J amp P Size Code Marking Liquifram Size Code Marking Liquifram Size Code ng on Back Liquifram Disk ecessed NOTE nee Size code markings for pumps j WQQ gg 4 supplied with 6 0 Liquiframs Spacer diaphragms should be referenced to the 6 0 Black Adapter not the 3 0 Spacer 5 Start the pump and turn the stroke knob to the setting indicated on the following Stroke Setting Chart which matches the pump series number located on the pump dataplate With the pump stroking running screw on the new Liquifram clockwise Q until the center begins to buckle inwards Stop the pump 32 Liquifram Stroke Setting Chart Series Stroke Knob Setting All A B J P Z Series C10 C11 C12 C70 C71 C72 C76 C90 C91 C92 E70 E71 E72 Al
20. nnector Multi Function Valve Tubing Connection 4 6 Foot Valve Suction Tubing Installation The Foot Valve acts as a check valve to keep the pump primed in suction lift applications The foot valve is designed to be submersed in the solution tank or drum and must sit in a vertical position at the bottom Position approximately 2 inches 50 mm off the bottom if the tank or drum contains sediment equipped with foot valves Flooded suction is recommended A 1 2 NPT connector is included for flooded suction installations Pump models equipped with high viscosity liquid ends are not The ceramic weight when installed positions the foot valve in a vertical position 1 Attach the foot valve to one end of the suction tubing see Tubing Connections Section 4 3 2 Slidethe ceramic weight over the tubing end until it contacts the top of the foot valve coupling nut 3 Place foot valve and tubing into the solution tank Check that the foot valve is vertical and approximately 2 inches 50 mm from the bottom ofthe tank or drum see illustration Connect the other end ofthe tubing to the suction side ofthe pump head bottom side see Tubing Connections Section 4 3 LMI LMI nme Pump zi a Pump RICE RICE OX Use Ceramic Weight Foot Valve I Must Remain i Vertical P4
21. on Check Instruction Supplement Valve goce ecu J A MULTI FUNCTION Valve and Tubing Your carton may or may not contain a3 FV 4 FV or bleed 4 FV accessory 3 0 Pre Installation Instructions The following precautions should be taken when working with LMI metering pumps Please read this section carefully prior to installation Precautions A Protective Clothing ALWAYS wear protective clothing face shield safety glasses and gloves when working on or near your metering pump Additional precautions should be taken depending on the solution being pumped Refer to MSDS precautions from your solution supplier A Water Pre Prime All LMI pumps are pre primed with water when shipped from the factory Ifyour solution is not compatible with water disassemble the Pump Head Assembly Thoroughly dry the pump head valves seal rings balls and Liquifram diaphragm Reassemble head assembly tightening screws inacrisscross pattern Refill the pump head with the solution to be pumped before priming the pump This will aid in priming Solution Compatibility Determine if the materials of construction included in the liquid handling portion of your pump are adequate for the solution chemical to be pumped LMI pumps are tested by NSF for use on muriatic acid and sodium hypochlorite Always refer to the solution supplier and the LMI Chemical Resistance Chart for compatibility of your specific LMI metering pump
22. ool down completely before checking resistance EPU checked within 10 hours of operation can increase coil resistance reading as much as 20 NOTES 1 Pumps with serial numbers LOWER than 960113429 2 Pumps with serial numbers HIGHER than 960113429 E 8 Post Office Square Acton MA 01720 USA 5 TEL 978 263 9800 pe FAX 978 264 9172 MILTON ROY http www Imipumps com 2001 LMI Milton Roy All Rights Reserved Liquifram Liquitron Micropace and Pro Pac are trade Printed in USA marks of Liquid Metronics Incorporated Teflon is a Specifications subject to change without notice registered trademark of E du Pont de Nemours amp Co Inc
23. r installations Back Pressure Anti Syphon Valve If you are pumping downhill or into low or no system pressure a back pressure anti syphon device such as LMI s Four Function Valve should be installed to prevent overpumping or syphoning Contact your LMI distributor for furthur information Electrical Connections a To reduce the risk of electrical shock the metering pump must be plugged into a grounded outlet with ratings conforming to the data on the pump control panel The pump must be connected to a good ground DO NOT USE ADAPTERS All wiring must conform to local electrical codes LMI Pump n di To Gn E LM TES INCORRECT CORRECT 4 0 Installation 4 1 Pump Location and Installation Locate pump in an area convenient to solution tank and electrical supply The pump should be accessible for routine maintenance and should not be subjected to ambient temperatures above 122 F 50 C Ifthe pump will be exposed to direct sunlight LMI black UV resistant tubing should be installed 4 2 Pump Mounting The pump can be mounted in one of two ways A FLOODED SUCTION ideal installation or B SUCTION LIFT when suction lift is less than 5 feet 1 5 m for solutions having a specific gravity of water For denser solutions consult distributor Your LMI metering pump must be mounted so that the suction and discharge valves are vertical NEVER position pump head and fittings horizontally 4 2 1 Flooded Suct
24. s charge side of the pump head Remove the ball and pour water or solution Into the port until the head is filled Replace valve then follow start up priming steps 6 4 Output Adjustment Once the pump has been primed an appropriate output adjustment MUST be made Pump output should be calculated and adjustments made accordingly 6 5 Total Pump Output Calculate the total output of the pump as follows PUMP OUTPUT MAX PUMP OUTPUT x SPEED x STROKE Example A151 392SI Use MAX Output from dataplate on bottom center of pump control panel 24 GPD 24 gallons per day If the pump is set at 6096 speed and 7096 stroke length the approximate pump output is 24 0 x 0 60 x 0 70 10 08 GPD gallons per day Divide by 24 hours in one day to calculate in gallons per hour Lf pump ts not equipped with speed adjustment calculate by Max Pump Output x Stroke only 25 7 0 Methods of Externally Triggering E RS TO ADS s LMI V0 TURN wire uns MILTON ROY 80 RUNNING in o0 2 bo STROKE EMPIY 120V mes or A 220 240 V 3 50 60 Hz HN om Optional Low Level Sensor cvz t Part No 29190 Method of Triggering LMI Pump e Through 4 Pin Connector Remote PIN Start Stop 1 Switch Closure o o 1 Stop Open Switch closing d triggers pump 2 Start Closed E 2
25. the process d Slowly rotate bleed adjustment screw counter clockwise until just a small amount of solution begins to trickle 23 down inside the bleed return tubing A small amount of solution pumped back to the tank with each stroke of the pump will allow gas and air to escape without air or gas locking in the pump head 7 Proceed to output adjustment Section 6 4 Lf the pump does not self prime remove the multi function valve on the discharge side of the pump head Remove the check valve and pour water or solution into the port until the head is filled Replace valve then follow start up priming steps 6 3 Start Up Priming without Multi Function Valve A Read this entire section completely before proceeding When all precautionary steps have been taken the pump is mounted and the tubing is securely attached you may now prime the pump 1 Plug in or switch on the pump 2 While the pump is running set the speed knob at 80 and the stroke knob at 100 Ifthe pump is equipped with pressure control turn fully clock wise Q 3 Thesuctiontubing should begin to fill with solution from the tank 4 Once the solution begins to exit the pump head on the discharge side SHUT THE PUMP OFF If pump is not equipped with an on off switch disconnect the power cord 5 The pump is now primed 24 6 Proceed to output adjustment Section 6 4 Jf the pump does not self prime remove the fitting on the di
26. tical Use LMI tubing straightener supplied with pump see Section 4 6 6 Do not overtighten fittings This causes seal rings to distort and not seat properly which causes pump to leak back or lose prime 7 Suction tubing should be as vertical as possible AVOID FALSE FLOODED SUCTION see Section 4 2 1 8 Shut off valves in pressurized line Disconnect tubing at injection check valve see Priming Section 6 0 When pump is primed reconnect discharge tubing 1 Refill container with solution and reprime see Section 6 0 2 Foot Valve must be vertical see Foot Valve Installation Section 4 6 3 Maximum suction liftis 5ft 1 5 m Pumps with High Viscosity Liquid Handling Assemblies require flooded suction 4 Suction tubing must be vertical Use LMI tubing straightener supplied with pump see Section 4 6 5 DONOTOVERTIGHTEN FITTINGS This causes seal rings to distort and not seat properly which caused pump to leak back or lose prime 6 Suction tubing should be as vertical as possible AVOID FALSE FLOODED SUCTION see Section 4 2 1 7 Check for pinholes cracks Replace if necessary 39 Troubleshooting continued PROBLEM POSSIBLE CAUSE Leakage at tubing 1 Worn tubing ends 2 Loose or cracked fitting 3 Worn seal rings 4 Solution attacking Liquid Handling Assembly material Low Output or Failure 1 Pump s maximum pressure rating to Pump Against is exceeded by injection pressure Pressure
27. ts shown 6 0 Start up and Adjustment a The pump ts normally self priming if suction lift is 5 ft 1 5m or less and the steps below are followed b Pumps are shipped from the factory with water in the pump head to aid in priming 6 1 X Output Adjustment Controls Manual series pump controls are not equipped with pressure con trol 1 Pressure Control Adjustment if equipped Pressure control provides the adjustment of the pump s pressure capability and power consumption reducing heat pipe shock and pulsation while increasing pump life See Section 7 0 after priming for proper adjustment settings 2 Speed Adjustment Upper Knob if equipped Speed control provides adjustment of the percent of maximum strokes per minute Turning this knob clockwise increases stroke frequency speed 3 Stroke Adjustment Lower Knob Stroke control provides adjustment of the percent maximum of solution discharged during each pump actuation Turning this knob clockwise Q increases solution displacement A7 and P7 Only When operating the pump in external mode the speed control knob should be turned fully counter clockwise 434 and A37 Only Pump comes equipped with a range selector switch which provides high or low speed adjustment The high setting provides speed adjustments between amp and 100 strokes per minute The low setting provides accurate speed adjustments be tween 4 and 12 5 strokes per minute for
28. upplier for additional precautions LMI metering pumps are designed for trouble free operation yet routine maintenance ofelastomeric parts is essential for optimum performance This involves replacing the Liquifram cartridge valves or seal rings valve balls multi function valve cap assemblies andthe injection check valve spring LMI recommends replacing these parts at least once a year however frequency will depend on your particular application When replacing the Liquifram and the cartridge valves or seal rings valve balls the injection check valve spring should also be replaced see next Section 9 3 A Spare Parts Kit SP or RPM Pro Pac kit containing these parts may be obtained from your local distributor Replacing the Liquifram 1 Carefully depressurize drain and disconnect the discharge line see Section 8 1 in this manual Place the Foot Valve into a container of water or other neutralizing solution Turn the pump on to flush the head assembly Once the pump head has been flushed lift the Foot Valve out of the solution and continue to pump air into the pump head until the pump head is purged of water or neutralizing solution Lf the liquid cannot be pumped due to Liquifram rupture using protective clothing gloves and face shield carefully disconnect the suction and discharge tubing Remove the Jour screws to the head and immerse the head in water or other neutralizing solution 2 Start the pu
29. ure the resistance of the EPU across the EPU wires Resistance reading should be in accordance to the EPU Resistance Chart see Section 12 0 Also check EPU leads to ground Consult supplier or factory 3 The pulser should be replaced if EPU checks out OK Consult supplier or factory 1 Move injection point to a pressurized location or install an LMI 4 FV see Section 4 4 2 If pressure at injection point is less than 25 psi 1 7 Bar an LMI 4 FV should be installed see Section 4 4 3 Replace pulser or resistor Consult factory 41 42 43 12 0 EPU Resistance Chart Pump Series Voltage Coil Resistance Ohms 20 C 68 A14 A15 A16 A34 A74 A75 A76 A94 A95 A96 J02 J03 J04 J05 JO6 115 VAC 76 87 J13 J15 J16 230 VAC 307 353 PW4 PW5 PW6 P04 P05 POG Pos P14 P15 P16 P18 P74 P75 P76 P78 see Note 1 A17 A37 A77 A97 A18 A78 115 VAC 152 176 P02 P03 230 VAC 583 671 P12 P13 see Note 2 A17 A37 A77 A97 A18 A78 115 VAC 76 87 P02 POS 230 VAC 291 335 P12 P13 J54D J55D J56D 12 VDC 1 1 1 3 D10 D11 D12 D13 D14 115 VAC 25 7 29 6 D70 D71 D72 D73 D74 230 VAC 97 112 E70 E71 E72 E73 E74 115 VAC 22 8 26 2 230 VAC 91 105 B11 B12 B13 B14 115 VAC 43 49 B71 B72 B73 B74 230 VAC 167 193 C10 C11 C12 C13 C14 115 VAC 22 8 26 2 C70 C71 C72 C73 C74 230 VAC 91 105 C76 C77 C78 115 VAC 14 4 16 6 230 VAC 57 7 66 3 Let pump c
30. urn Pressure Control Potentiometer clockwise Q halfway between the stall point and maximum setting This is the optimum pressure control setting for your application Increase setting if back pressure is increased Adjusting pressure control decreases pressure rating of pump Bar Pressure Control psi 6 System 4 80 5 J 5 cee 4 SPN Excess 60 Pr re 3 PPPA AQ 2 de L 1 20 Adjust pressure control to reduce heat shock and pulsations and to prolong pump life 29 8 2 Calibration Procedure On Site Volumetric Calibration in External Mode 9 0 9 1 Since pump output is governed by an external device such as Flowmeter Pulser Liquitron Controller or 4 20 mA DC signal from an instrument with an LMI Analog to Digital Converter only the output per stroke may be calibrated With pump primed and discharge tubing connected to the injection point as it would be in normal service place Foot Valve Assembly in a graduated container with a volume of 1000 ml or more Switch pump to Internal mode with Speed Knob set at 100 until air is exhausted from suction line and pump head Adjust Pressure Control if desired See Section 8 1 Switch pump OFF and note solution level in graduated container Refill graduate to a starting point Switch pump ON and count the number of strokes for exactly one minute then switch pump OFF Note volume pumped during the calibration period of one minute
31. ut There is no need to remove nut Remove knob by pulling towards you With pump running zero the pump using a screw driver to turn the stroke shaft counter clockwise until the pump just stops clicking Pump is now zeroed Position knob at zero or the end ofthe low range band and tighten 5 16 8 mm collet nut Replace yellow cap 11 0 Troubleshooting PROBLEM Pump Will Not Prime Pump Loses Prime 38 POSSIBLE CAUSE Pump not turned on or plugged in Output dials not set properly Foot Valve not in vertical position on bottom of tank Pump suction lift too high Suction tubing is curved or coiled in tank Fittings are over tightened Air trap in suction valve tubing Too much pressure at discharge Pumps without multi function valve Solution container ran dry Foot Valve is notin a vertical position on the bottom of the tank Pump suction lift is too high Suction tubing is curved or coiled in tank Fittings are over tightened Air trap in suction valve tubing Air leak on suction side SOLUTION 1 Turn on pump plug in pump 2 Always prime pump with speed at 80 and stroke at 100 3 Foot Valve must be vertical see Foot Valve Installation Section 4 6 4 Maximum suction liftis 5 ft 1 5 m Pumps with High Viscosity Liquid Handling Assemblies require flooded suction 5 Suction tubing must be ver
32. vice i e including factors such as injection pressure fluid viscosity and suction lift Place the Foot Valve in a graduated container with a volume of 1000 ml or more Pluginandswitch pump to Internal Mode Pump until all the air is exhausted from the suction line and head Turn the pump off Refill graduated container to a level starting point Jf pump is equipped with pressure control see Section 8 amp 1 be Jore proceeding Using a stopwatch or timer turn the pump on for a measured amount of time 50 pump strokes minimum The longer the time period the more confident you can be of the results Be sure to count the number of strokes during the calibration period when making comparisons Turn the pump off Note the time elapsed in relation to volume displaced in the graduate Now calculate the output in the time unit you choose minutes hours days etc If the output is too low or too great adjust speed and or stroke estimating required correction and repeat steps 1 7 8 1 Tee x J Pressure Line H Injection Check Valve l LMI 7 Pump s Y c _ Graduate Suction LL lt 1000 ml Min Lift Foot L Valve Pressure Control Adjust Pressure Control While unit is running turn Pressure Control Potentiometer slowly counter clockwise until unit just begins to stall From this stall point now t
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