4-Digit Preset Counter Installation & Parts
Contents
1. 4 Digit Preset Counter Installation amp Parts CONTROLS ai LIQUID CONTROLS GROUP An IDEX Fluid amp Metering Business Installation M500 10 TABLE OF CONTENTS INTRODUCTION Application Data e edili 3 Preset Models renn 3 INSTALLATION Mounting u u e 4 Operation and Initial Start Up 4 Adjustments uuu eter keen he 5 iv le 5 Shutoff ec 6 Brake sila ii 7 PUCK oeae iaia 7 Thermal Insulation 7 Be Prepared MAINTENANCE Preset Counter Replacement 8 Environmental Protection rrenen 8 LubriCatlon nica a 8 MD 9 Notch RING uuu rino lionel illa lie 9 Seal 9 le EE 9 Lift Plates urere rte terri HE Con nre 10 Reset Keys dalia lilla 10 Emergency Stop Button i 10 BILL OF MATERIALS Illustrated Parts Breakdown 14 Bill of Materials 15 A WARNING Before using this product read and understand the instructions All work must be performed by qualified personnel trained in the proper application installation and maintenance of equipment and or systems in accordance with all applicable codes and ordinances When handling electronic components and boards always use proper Electrostatic Discharge ESD equipment and follow the proper pr2. no dwell period and a 10 1 ratio side frame This preset is normally specified on M 5 and M 7 meters measuring high viscosity liquids at low flow rates when the counter is in tenth units and the preset is in whole units D 4120 Two stage preset with 3 unit dwell and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters when the counter and preset are recording in whole units Also used on M 15 meters when the counter and preset are recording in dekaliters D 4140 Two stage preset with a 10 unit dwell and a 1 1 ratio side frame This preset is normally specified on M 15 meters when the counter and preset are recording in whole units Also used on M 5 and M 7 meters when the counter and preset are recording in one liter increments and on M 30 meters when the counter and preset are recording in dekaliters D 4160 Two stage preset with a 60 unit dwell and a 1 1 ratio side frame This preset is normally specified on larger meters M 60 MS 75 and MS 120 when registering in whole units D 4111 Two stage preset with 3 unit dwell and a 10 1 ratio side frame This preset is normally specified on M 7 delivery truck meters when the counter records tenth units and the preset is in whole units A special clutch assembly prevents non random delivery readings D 4131 Two stage preset with 10 unit dwell and a 10 1 ratio side frame This preset is normally specified on M 15 delivery truck meters when the counter re
3. ring and inserted ratchet assembly on the number wheel shaft 40282 Swing the side frame assembly back into position slide the shaft 40282 in place replace the bushing then the self locking nut 6099 and the body fit screw 40374 Caution When replacing the self locking nut 06099 DO NOT OVERTIGHTEN If this nut is overtightened it will collapse the side frames or bind the wheels MAINTENANCE Sear To remove the sear 1 Remove the shoulder bolt 42784 and self locking nut 07197 Disconnect the sear spring 40329 and the latch spring 40324 This will release the sear so it can be lifted off the base plate for replacement To reassamble replace the sear 40375 and reinstall the shoulder bolt 42784 and self locking nut 07197 Reconnect the sear spring 40329 and the latch spring 40324 and check sear for freedom of movement If the sear does not move freely check the shoulder bolt 42784 and or preset base plate for burrs Remove any burrs by gently filing Caution should be taken not to alter the parts contour Latch To remove the latch 1 2 Disconnect the trigger spring 40371 Remove the shoulder bolt 40330 and the internal washer 04644 and the nut 04373 This will release the latch so it can be lifted off the base plate 41708 To reassamble replace the latch 40356 shoulder bolt 40330 washer 04644 and the nut 04373 Reconnect the trigger spring 40371 C
4. 10 gallons Presets provide valve control through a mechanical linkage Presets are available in a choice of models to meet requirements for single stage or two stage operation dwell flow periods and units of measure The preset counter is available geared in either a 1 1 or 10 1 ratio The 1 1 ratio is used when the right hand wheel of the counter and the right hand wheel of the preset rotate in unison with both wheels indicating the same unit of measure When the right hand wheel of the counter and preset record whole units the preset capacity is 9 999 The 10 1 ratio is used when the right hand wheel of the counter is to indicate tenths and the right hand wheel of the preset is to indicate whole units the right hand wheel of the counter turns ten revolutions for each revolution of the right hand wheel of the preset The preset is available in a two stage model to prevent hydraulic shock in the piping system and meter by gradually reducing and then stopping flow For installations where hydraulic shock is not a potential problem single stage presets are available OPERATING NOTE Hydraulic Shock Prevention Hydraulic shock occurs when a volume mass of liquid is moving through a pipeline at some flow rate and a valve is suddenly closed When the flow is so decreased or stopped the entire mass of the liquid in the piping system acts as a battering ram causing a shock effect within the meter The greater the mass length of line an
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6. off at dwell never reaching full flow On those occasions where mass velocity etc are of such magnitude as to preclude the elimination of hydraulic shock by use of a two stage valve some sort of shock absorbing device is required If the dwell flow rate is as slow as possible but the valve does not reach dwell before final shut off then a preset with a longer dwell period should be used If proper adjustment of the preset valve linkage does not result in elimination of hydraulic shock the viscosity of the product may not be as originally specified requiring change of the valve dashpot washer The Preset Trip Ring provides two available notch segments for controlling single stage valves and four available notch segments for controlling two stage valves Should one segment become worn so that it is no longer effective the trip ring can be repositioned to make use of another available notch segment The choice of tapped holes and accompanying slots permit trip ring installation for greatest ease in connecting the ball joint of the linkage arm to the trip ring ADJUSTMENTS Shutoff Adjustment Preset Counters assembled with meters are adjusted in the factory for proper shut off timing Due to meter For Consistent Shut Off system variations i e rate of flow and or viscosity it The same flow rate and viscosity must be maintained is sometimes necessary to make shutoff adjustments When metering products where variation in vi
7. on Pages 9 11 Worn trigger Replace worn component Fulcrum adjustment disturbed Adjust fulcrum Problem STOPPING BEFORE ZERO PROBABLE CAUSE AND SOLUTION Improper notch ring adjustment Adjust the notch ring Improper valve adjustment Refer to the valve service manual 13 ILLUSTRATED PARTS BREAKDOWN L eoeds epis jeeuM G6S9r L 4aysem BuudS jaoym 8zcor ppv LLLVC IPPON 8 LELYO IPPON FLZGrF pue eLzgr SON Hed mojaq Buns ur uoduosep ees saljlquassy JeoD pue awe epis au jo yed eje JEU S0zGr ZOZGH 90ZGF GOZGH HOZGH s1eob ay c pue p pue sabed uonduosep japow ees pz p pue 9Z0L Z460r 98Z0p sleeum Joquunu y L jdeoxe sjese4g Jepouu je 40J pesn eje sued swes ay 052 82052 suavs mos 235 W est Age CUVE SECH LL WO d3 YISW Aamasse Savas TLIS7 14 BILL OF MATERIALS z JepiiS I uAA SHUN z Jepiis uopng dois Kouefjeu3 p uopng 1eS eJd Spo N 1eseJgd YM S LA uA JOQUUNN rL op ON A quiesse oeu eaf 1 1 104 Y99 LS 9 yz e99 uolulg Duude doe Kouefueu3 Duude uoje oseg 9M 1eg eJd yeys Join Buiusng eAuq Je sibay peys eAuq 1 9 unoo jeuueu seqqny med yeys uoiuld eje d eseg 106611 IMEd 99UM PUN Bury du L s Buuds quio Jaddn yeys quio p Buuds med sg Buudg ume Ae uld JOAId JESS Ijgwp yun 09 eau
8. spring 40538 To reassemble replace the key return spring 40538 and emergency stop button 45224 and secure with the E Ring 06815 Follow step 4 of the Reset Keys instructions Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references TROUBLESHOOTING Problem STOPPING AT RANDOM PROBABLE CAUSE AND SOLUTION Worn sear Replace sear Worn trip ring Remove trip ring and select new Notch set Reposition the ball joint on the trip ring Reinstall the trip ring Burr on notch ring Remove burr or replace notch ring Right hand comb finger bent Adjust right hand comb finger so it clears the right hand wheel by 1 32 when the remaining wheels are any number other than zero Comb fingers are bent or damaged Adjust sensing fingers so that fingers are touching the wheel at the same moment Problem PRESET WON T LATCH IN FULL FLOW PROBABLE CAUSE AND SOLUTION Worn sear Replace sear Worn trip ring Replace trip ring Worn sear and latch Replace sear and latch Fulcrum adjustment moved Adjust fulcrum Valve linkage out of adjustment Adjust linkage Problem PRODUCT DELIVERED REGISTERS MORE THAN THE PRESET AMOUNT PROBABLE CAUSE AND SOLUTION Right hand wheel of the counter is running 10 times faster than the right hand wheel of the preset Wrong mode preset is being used Change to a 1 1 ration preset with needed dwell Problem PRODUCT DELIVERED REGISTERS
9. y weie peer xeH Ajquaesse ones 69D 1 01 40 ao Z 9 8 eec UOIUId Ajquiassy YET g Alquassy 4104 Bury Buiureje Ajquaesse ones 226 1 01 401 4199 09 9 L ESD Jop uopnduoseg yog 1epinous z INN wer Uld 3940019 z Buuds seas uopnduosoeg uoneasnil Jed Burs 3 Jeureyoy JeuseM ld YI uopnduoseg LIQUID CONTROLS GROUP IDEAL SOLUTIONS INTEGRATED SYSTEMS LIQUID CONTROLS EUROPE LIQUID CONTROLS SPONSLER LIQUID CONTROLS LIQUID CONTROLS INDIA FAURE HERMAN TOPTECH SYSTEMS LIQUID CONTROLS 105 Albrecht Drive Lake Bluff IL 60044 847 295 1050 LIQUID CONTROLS EUROPE SAMPI Via Amerigo Vespucci 1 55011 Altopascio Lucca Italy 39 0583 24751 LIQUID CONTROLS INDIA 808 VCCI Complex GIDC Makarpura Vadodara 390 101 Gujarat India 91 265 2631855 LIQUID CONTROLS SPONSLER 105 Albrecht Drive Lake Bluff IL 60044 847 295 1050 105 Albrecht Drive Lake Bluff IL 60044 2242 1 800 458 5262 847 295 1050 Fax 847 295 1057 www lcmeter com CORKEN SAMPI IREX LIQUID CONTROLS GROUP TOPTECH SYSTEMS 1124 Florida Central Parkway Longwood FL 32750 407 332 1774 Nateus Business Park Nieuwe Weg 1 Haven 1053 B 2070 Zwijndrecht Antwerp Belguim 32 0 3 250 60 60 FAURE HERMAN Route de Bonnetable B P 20154 72406 La Fert Bernard Cedex France 33 0 2 43 60 28 60 6961 Brookhollow West Drive Houston TX 77040 713 623 0808 2004 Li
10. LESS THAN THE PRESET AMOUNT PROBABLE CAUSE AND SOLUTION The units wheel is over running on transfer Improper springs used on forks Replace the fork springs and ensure the correct number of washers are being used 11 TROUBLESHOOTING Problem THE REGISTER ROLLS BACK PROBABLE CAUSE AND SOLUTION The brake is not holding Adjust the brake Problem THE NEXT DIGIT TO THE LEFT TRANSFERS WHILE RESETTING THE RIGHT HAND DIGIT PROBABLE CAUSE AND SOLUTION The lift brake is damaged Replace the lift brake Problem THE RESET KEYS STICK PROBABLE CAUSE AND SOLUTION Dirt or ice may be jamming the movement of the key or the shaft may be bent Clean and lubricate components or replace damaged parts Problem THE EMERGENCY BUTTON STICKS PROBABLE CAUSE AND SOLUTION Bent or damaged movement Replace the damaged parts Problem THE PIPES RATTLE PROBABLE CAUSE AND SOLUTION Hydraulic shock Two stage valve closing is required Low flow position must be at a low flow rate Adjust linkage to obtain both the two stage closure and the low flow rate Problem STOPPING IN DWELL PERIOD PROBABLE CAUSE AND SOLUTION mproper preset adjustment Refer to Preset Counter shutoff Adjustment on Page 7 Improper valve adjustment Refer to the valve service manual Wrong trip ring notch selection Refer to Linkage Adjustment on Page 6 Notch ring set for single stage Remove and reverse Valve latched in dwel
11. aft slide the replacement shaft out following through with the original shaft catching the lift plate as you go Make sure that the spacer 45217 is not lost or omitted Reconnect the lift plate spring 40981 and replace the E Rings 02188 Replace the three forks one at a time Next replace the fork springs 40532 and the loading washer on the fork on the right hand side of the preset ONLY Then replace the 3 for grommets 45230 and reconnect the 5 comb springs 40296 Reposition the comb 40294 and replace the upper comb shaft 40295 securing with the two E Rings 02188 Reset Keys To replace preset keys 1 Remove the front two body fit screws 40374 This will allow the entire key base assembly 45220 to slide out of the preset unit Remove the E Rings 02188 and 07268 Release the pawl springs 41019 and remove the cotter pins 06239 This will permit removal of the preset buttons 45223 To reassemble slide new or repaired preset button 45223 into position and replace the cotter pins 06239 and pawl springs 41019 Next replace the E Rings 02188 and 07268 Slide the entire key base assembly 45220 into the housing and replace the two body fit screws 40374 Emergency Stop Button Part of the Key Base Assembly To replace emergency stop button 1 2 Follow step 1 under Reset Keys Remove the E Ring 06815 which will release the emergency stop button 45224 and the key return
12. carefully remove the entire unit form the housing 41709 Loosen the hex nut 4373 to allow sufficient movement of the fulcrum 41759 Turn the preset on its side and move the fulcrum to set 1 64 4 mm gap between trigger 40297 and latch 40356 After gap is set tighten the hex nut 4373 and reexamine the gap If the gap is accurate reassemble the base plate to housing and the register stack to the counter mounting flange of meter If the gap is not accurate repeat the steps above Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references MAINTENANCE Replacing the Preset Counter To replace the preset counter 1 Disconnect the valve linkage 1 from the operating lever 2 Remove the four screws 3 which secure both preset counter 4 and direct reading counter 5 to the meter Lift both counters off meter and remove the trip ring 6 With the counter assembly turned upside down remove the four cap screws 7 which secure the cover to the preset counter Lift the preset counter internals out of the preset cover 4 Install the new preset unit The longer shaft 3 should extend through the preset Make sure the slotted shaft in the gear plate is engaged properly with the preset drive shaft 40310 If engagement is not complete rotate the gear plate drive shaft at the bottom of the preset to aid in seating Secure the preset to its cover with the four s
13. close completely when the preset volume has been completely metered A single stage preset counter is also available 2 Publication Updates and Translations The most current English versions of all Liquid Controls publications are available on our web site www lcmeter com It is the responsibility of the local distributor to provide the most current version of LC manuals instructions and specification sheets in the required language of the country or the language of the end user to which the products are shipping If there are questions about the language of any LC manuals instructions or specification sheets please contact your local distributor Suggested Dwell Settings M 5 MS 5 3 10 U S Gallons M 7 MS 7 3 10 U S Gallons M 15 M 25 MS 15 10 30 U S Gallons e M 30 MS 30 10 30 U S Gallons M 60 30 60 U S Gallons MS 75 30 60 U S Gallons MS 120 60 100 U S Gallons These are suggested dwell settings They may vary with system conditions i e length of line viscosity of product etc Application Data APPLICATION DATA The LC Preset Counter provides a means of automatically delivering a precise predetermined quantity of product by controlling the operation of a mechanically linked hydraulically balanced valve For maximum life the preset should be operated at or under a maximum of 120 rpm of the right hand wheel Example 1200 gpm in whole gallons 120 gpm in 1
14. cords tenth units and the preset is in whole units A special clutch assembly prevents non random delivery readings MOUNTING OPERATION AND START UP Mounting Instructions To mount the 4 digit preset to the meter O Oni n n 1 To mount the Preset Counter it is necessary to remove 10000 OL 000 el the housing 1 This is done by removing the four corner screws 2 and lifting the housing off the base plate 2 The Preset Counter housing 1 is then mounted to the mechanical register 3 with four hex head screws 04378 To replace the preset base plate 41708 with the attached internals turn the assembly upside down and gently insert it in the housing Make sure the slotted shaft 4 of the gear plate is engaged properly with the preset drive shaft 40310 If engagement is not complete rotate the gear plate drive shaft at the bottom of the preset to aid in seating Replace the four screws of the seal wire and screws assembly 40633 3 Position the trip ring on the base plate taking care that movement of the sear 40375 and latch 40356 assemblies are not hampered 4 To place the entire assembly head on the mounting flange of the meter turn right side up and position on the counter end cover making sure that the preset counter drive shaft meshes with the slot in the adjuster assembly Check trip ring for freedom of movement and secure using the four bolts provided with the meter assembly Operation and In
15. crews 7 Install the trip ring 6 Note the Off Set in the ring should be toward the base seating trip ring 8 To replace the register stack on meter turn the assembly right side up and position on the counter end cover making sure that the preset counter drive shaft meshes with the slot in the adjuster assembly Check the trip ring for freedom of movement and secure using the four bolts provided with the meter assembly Environmental Protection If a meter is exposed to a difficult environment the unit should be covered Be sure to cover the register stack before washing to prevent seepage into the preset and counter housings After wash down carefully dry the register stack to prevent possible damage To prevent dust collection inside the housing insert a hose for low pressure instrument air purge Lubrication No field lubrication is necessary Occasionally it may be necessary to replace certain parts of the preset All of these repairs require removal of the four screws 04584 and the seal wire and screws assembly 40633 This will release the base plate with attached internals Carefully remove this entire assembly from the housing 41709 Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references Caution Excessive lubrication will attract foreign contaminants in difficult environments and shorten life of the device Trigger To replace the trigg
16. d or velocity the greater the hydraulic shock Since the preset batching valve is usually located downstream of the meter the meter case packing gland and meter internal members receive the full impact of such hydraulic shock which can cause ruptures leaks or other damage To overcome this hazard a hydraulically balanced slow closing valve should be used in conjunction with a two stage preset adjusted for sufficient dwell to decelerate the liquid flow gradually Preset Models The preset models available provide dwell periods suitable to meet all conditions The models available with a description of each are listed below Non random indicates that the numbers of the preset counter will stop on a digit at the end of a delivery and not at a place between digits D 4150 Two stage preset with 30 unit dwell period and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters when the counter and preset record pounds Also specified on M 30 and M 60 meters when counter and preset record whole units and on M 15 meters when the counter and preset record in one liter increments M 60 and larger size meters when counter and preset record in dekaliters D 4180 Single stage preset no dwell period and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters measuring high viscosity liquids at low flow rates with the counter and preset in pounds or whole units D 4170 Single stage preset
17. er 1 4 5 Remove the E Rings 02188 from the upper comb shaft 40295 and slide the shaft out Disconnect the trigger spring 40371 from the trigger 40297 To reassamble insert the new trigger 40297 Slide the upper comb shaft 40295 into position and replace the E Rings 02188 Make sure the slot in the trigger straddles the fulcrum shaft Reconnect the trigger spring 40371 Check the trigger fulcrum adjustment Page 7 Notch Ring To replace the notch ring 40539 1 Remove the front body fit screw 40374 and the locknut 06099 This will release the side frame 45210 allowing itto swing like a gate permitting removal of the bushing 40285 from the shaft 40282 Slide the shaft 40282 out only far enough to clear the numbers wheel 40287 Remove the numbers wheel 40287 with the inserted ratchet assembly 43064 and attached the notch ring 40539 Remove the notch ring screw 40974 and spread the notch ring enough to remove it from the numbers wheel Occasionally a burr in the notch ring is all that is wrong Remove the burr by gently filing it off Do not mar the surface of the notch ring To reassemble replace the notch ring on the numbers wheel and replace the notch ring screw 40974 Be sure to reinstall the notch ring in exactly the same position it was in Reversing it will give a single trigger when two stage shut off is required Replace the numbers wheel with the attached notch
18. heck the trigger fulcrum adjustment Page 7 Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references MAINTENANCE Lift Plates In order to replace the lift plates a spare lower comb bridge shaft 40368 will be required To replace the lift plates 1 10 Remove one of the E Rings 02188 from the upper comb shaft 40295 This will permit sliding the shaft out Lay the comb 40294 still attached to the springs back across the guide plate 45209 To remove the forks the number wheels must be rotated so the forks are in the full forward position Remove the fork springs 40532 and disconnect the 5 comb springs 40296 Remove the 3 E Rings 02188 from the lower comb bridge shaft 40368 and slide the shaft with spacer 45217 out just far enough to release one side of the first lift plate 46228 Slide the spare lower comb shaft 40368 into this side Do not catch the lift plate Finish sliding the first lower comb shaft out following through with the spare shaft releasing the lift plates 46228 and 46229 as you go This will release the lift plates while holding the 3 detents 40278 and the spacers in position To remove the lift plates disconnect the lift plate springs 40981 and 40329 from the side frame and lift plates Remove the lift plates from the base plate To reassemble replace the lift plate 40388 Now with the original lower comb bridge sh
19. itial Start Up SINGLE STAGE OPERATION By pressing the four black buttons located on the front of the preset the operator selects the quantity to be delivered Each button controls the number on the wheel above it There is no need to set the numbers in sequence Any number can be set first second third or fourth TWO STAGE OPERATION Preset operation is basically the same during single stage or two stage closure The quantity desired is set by the operator and the valve is opened to the full flow TOSTOP position At a predetermined dwell period the preset v allows the valve to close partially slowing the flow to approximately 10 20 of full flow When the desired quantity has been delivered the preset releases the valve allowing it to close completing the delivery k Move 2 locknuts amp bracket inward to decrease dwell speed outward to increase dwell speed In Out e a a Linkage Adjustment Available Single Stag amp Noteh Segment es Two Va EN gt Two Stage Ss Notch Segment Zero with Linkage Adjustments Linkage adjustments can be used to zero the preset with the counter as long as it does not create hydraulic shock If hydraulic shock occurs adjustment of the right hand wheel will be required Page 6 Trip Rings and Ball Joint Extensions The Trip Ring is used only as shown in the parts list with M 5 and M 7 meters With all larger size meters M 15 etc a Ball J
20. l flow when wide open Adjust the linkage 12 TROUBLESHOOTING Problem THE TANK OVERFILLED PROBABLE CAUSE AND SOLUTION The valve did not close Refer to the valve service manual The tank was not empty Make sure the tank is empty Make sure it is large enough to hold the preset amount Ensure the correct amount was set on the preset The preset valve was within or smaller than the dwell period for two stage presets Ensure to set the preset quantity larger than the dwell Single stage model used with two stage trip ring notch set Adjust the notch ring for single stage closure Presets with switch operated valve The switch did not close properly Disconnect power and open the switch case to determine if the cam is operating properly Comb did not engage notch ring Check for proper comb adjustment Check for bind in comb pivot preventing engagement of the notch ring High temperature product being used with a net preset Change to gross or fill lesser quantity Problem RUNNING PAST ZERO AND STOPPING PROBABLE CAUSE AND SOLUTION Improper valve adjustment Refer to the valve service manual Improper preset adjustment Refer to Preset Counter Shutoff Adjustment on Page 7 Wrong trip ring notch position Refer to Linkage Adjustment on Page 6 Wrong linkage adjustment Refer to Linkage Adjustment on Page 6 Interference by dirt ice insulation etc with a trip ring or linkage Refer to Maintenance
21. ocedures Make sure that all necessary safety precautions have been taken Provide for proper ventilation temperature control fire prevention evacuation and fire management Provide easy access to the appropriate fire extinguishers for your product Consult with your local fire department state and local codes to ensure adequate preparation Read this manual as well as all the literature provided in your owner s packet Save these instructions for future reference Failure to follow the instructions set forth in this publication could result in property damage personal injury or death from fire and or explosion or other hazards that may be associated with this type of equipment Introduction The LC 4 digit Preset Counter is a mechanical control device used to accurately and automatically batch liquids In addition to being mechanically linked to a hydraulically balanced preset valve optional pneumatic or electrical switches can be mounted on the preset for controlling pump start circuits or actuating other control circuits i e open close solenoid valves The LC preset is a 4 digit retrograding counter capable of presetting from 1 to 9 999 units also 10 to 99 990 units in increments of 10 or 1 to 999 9 via front panel mounted push buttons The two stage preset counter signals the two stage preset valve to close partially at a fixed number of units of measure short of final closure It then signals the valve to
22. oint Extension is supplied attached to the Trip Ring to permit connection of the ball joint of the linkage arm When ordering replacement parts please specify needed parts accordingly ADJUSTMENTS Linkage Adjustment There are two main reasons for making linkage adjustments 1 Field modification of flow direction through the meter 2 To overcome hydraulic shock Hydraulic shock occurs when a volume mass of liquid is moving through a pipe line and a valve is suddenly closed When the flow is abruptly stopped the entire mass of liquid in the piping system acts as a battering ram causing a shock effect within the meter The greater the mass length of line and or velocity the greater the hydraulic shock Since the valve of the meter is usually located at the meter outlet the meter packing gland and the meter internal components receive the full impact of such hydraulic shock To prevent this hazard a two stage slow closure valve should be used with the meter If the linkage adjustment is not properly set hydraulic shock can occur To adjust the linkage on standard left to right flow meter for a lower flow shorten linkage turning the nuts in a clockwise direction will shorten the stroke of the valve reducing the flow rate in dwell If the linkage is too short the full open notch position may not be reached and the result would be a shut off at dwell rather than at zero If the linkage is too long the valve may shut
23. quid Controls Pub No 48990B 2 10 CORKEN 3805 Northwest 36th St Oklahoma City OK 73112 405 946 5576 ISO 9001 di DNV ISO 14001 ba DNV CERTIFICATED FIRM CERTIFICATED FIRM Certificate No 08732 Certificate No 05049
24. s is done by removing the register stack from the counter mounting flange of the meter 2 Liftthe entire register stack off the meter and turn upside down 3 Remove the four screws holding the preset base plate 41708 with attached internals and carefully remove the entire unit from the housing 41709 4 If the first gear 45208 is loose moves without lag the brake should be tightened Turn the screw 40526 clockwise until the nut 04761 is snug but not tight against the bracket 40525 5 If the gear 45208 is too tight and sticks when being rotated then the brake must be loosened Thermal Insulation When insulation of the outside of the meter is required to maintain the temperature of a liquid make sure that the valve linkage movement is not impeded During application of insulation continually move the valve handle to be sure movement is not hampered in any way ADJUSTMENTS Fulcrum Adjustment Prior to any fulcrum adjustment the gap between the trigger 40297 and latch 40356 should be inspected To inspect the trigger and latch 1 Remove the four screws connecting the register stack to the counter mounting flange of the meter Lift the entire register stack off the meter and turn upside down Inspect the gap between the trigger and latch The gap should be 1 64 4 mm To adjust the fulcrum 1 Remove the four screws holding the preset base plate 41708 with the attached internals and
25. scosity and Before any shutoff adjustments are made at least two or flow rates exist a two stage preset should be specified 2 test runs should be completed On all presets make test runs using a value large enough to permit the meter to reach its normal flow rate If after making at least two 2 test runs an error in alignment is indicated correct the error as follows 1 Note the position of the zero on the right hand wheel in relation to the zeros on the other wheels Determine whether the zero is stopping too early or too late and how much misalignment occurs Remove the eight 8 screws A Remove the bezel B Press preset button C of units preset wheel D until screw E appears in opening Loosen screw E in adjustable ring F and index the numbers wheel D relative to this ring oa EF N To correct an early shut off as illustrated holding ring F in place move the numbers wheel D down enough to correct misalignment To correct a late shut off as illustrated holding ring F in place move the numbers wheel D up enough to correct misalignment T Reverse the steps for reassembly Direct Reading Counter Preset Counter Correct Brake Adjustment A brake is used on 1 1 preset to prevent rotation on the counter wheel when setting a number on the right hand wheel of the preset To adjust the brake 1 Remove the register stack preset counter etc from the meter Thi
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