OGM-Digital Manual

OGM-130A SERIES DIGITALFLOW METER OERATION MANUALCHANGSHA SUNNY INSTRUMENT CO.,LTDⅠFlow Meter Control Panel:Liquid Crystal Display:1.The measure unit:m3,USGA,GA,L,KG;2.Actual Values;3.The Total Data per Unit of Time and the Total.Three Keys:ON/CLEAN,SETUP,TOTALⅡDetails of Operation:1.Start:Press ON/CLEAN.It will be shutdown automatically1minute later without any operation.2.Erase Data:Press ON/CLEAN at normal display.3.Check Total:the data displayed after□TOTAL□is the total value and then press ON/CLEAN to return.4.Erase the total per unit of time:at normal display,press TOTAL to show total data,and then press the TOTAL again,appeared the twinkling data that is the total per unit of the time,press ON/CLEAN to erase.5.Modify correction factor:press SETUP into Correction Factor Change Mode,the units digit twinkling,press ON/CLEAN to“＋”,to press TOTAL to“－”change the digit,until reach the right number,same procedure for the tens,the percentile and the ter,quit correction factor mode automatically.Factor has already been adjusted before delivery.PLEASE DO NOT ADJUST THE FACTOR WITHOUT ANY PARTICULAR REASON.When errors occur for using in different medium,the factor can be adjusted.Adust1 on the factor,the flow meter error is about0.6%.When enhance the factor,the displayed value will be more than the actual flow of oil or vice versa.6.Change measurement unit:Press SETUP button fice times intoMeasurement Unit Change Mode,press ON/CLEAN or TOTAL until show the right ter,quit Measurement Unit Change Mode automatically.ⅢChange the battery:When the battery voltage drops,signal is flashing on the display,it must be replaced.Remove the protector cover,change the Lithium battery ER26500and screw the lid on again.1.Cover2.Battery plate3.Lithium BatteryⅣWorking PrincipleThe design of the oval gear flow meter is relatively simple;oval shaped gear-toothed rotors rotate within a chamber of specified geometry.As these rotors turn,they sweep out and trap a very precise volume of fluid between the outer oval shape of the gears and the inner chamber walls with none of the fluid actually passing through the gear teeth.ⅤTechnical SpecificationⅥ.InstallationThe meter can be installed in any orientation as long as the meter shafts are in a horizontal plane.(Refer to Fig.4for correct installation)The register assembly may be orientated to suit the individual installation.Note:Incorrect installation can cause premature wear of metercomponents.√√XFig 42.When setting up pipe work for meter installations a bypass line be included in the design.This provides the facility for a meter to be removed for maintenance without interrupting production.(See Fig.5)ModelOGM-25OGM-40OGM-50Size(Inch)1’’1½’’2’’Min.Flow Rate L/min 122530Max.Flow Rate L/min 120250300Accuracy(%)±0.5%±0.5%±0.5%Repeatability(%)≤0.03%≤0.03%≤0.03%Max.Viscosity CPS100010001000Max.Operating Pressure MPa 3.41.81.83.Do not over tighten meter connections.4.It is important that after initial installation you fill the line slowly,high speed air purge could cause damage to the rotors.5.Test the system for leaks.6.Check the strainer,after the first200liters check periodically,particularly if the flow rate decreases.Ⅶ.Meter Trouble ShootingTrouble Cause RemedyFluid will not flow through meter a)Foreign matter blockingrotorsb)Line strainer blockedc)Damaged rotorsd)Meter connections overtightenede)Fluid is too viscousa)Dismantle meter,cleanrotors(strainer must be fitted inline)b)Clean strainerc)Replace rotors(strainer must befitted in line)d)Re-adjust connectionse)See specifications for maximumviscosityReduced flow through the meter a)Strainer is partially blockedb)Fluid is too viscousa)Clean strainerb)See specifications for maximumviscosityMeter reading inaccurate a)Fluid flow rate is too high ortoo lowb)Fluid is too viscousc)Excess wear caused byincorrect installationa)See”specifications”for minimumand maximum flow ratesb)Bleed air from systemc)Check meter body androtors.Replace as required.Referto installation instructions.Fluid flows but no reading on meter a)Bevel gear is loose on shaftb)Rotor drive gear is damagedc)Transmission gearsdamagedd)Register gears damageda)Tighten grub screwsb)Replace rotorsc)Replace gearsd)Replace register assemblyFluid leaks into register a)seal won or damaged on thecover platea)Replace seal(Check sealcompatibility with fluid)Ⅹ.Reassembly1)clean all components before reassembly.2)Before reassembling check the condition of the rotors(Item4).Replace if necessary.3)Replace the rotor(with the gear)on the short shaft in the housing then place the2nd rotor onto the shaft so as the rotors are at90°to each other.(Refer Fig.3).Check rotor operation by turning either of the rotors.If the rotors are not in mesh correctly or do not move freely remove one of the rotors and replace it correctly at90°to the other rotor.Recheck the operation of the rotors.4)Inspect the gears(Item6)in the meter cap(Item5)for wear.(Replace if required,refer to spare parts on page4.5)Replace the o’ring(Item3)into groove in the meter cap,if the o’ring has grown or is damaged in any way replace it with a new part.6)Replace the meter cap making sure that the gear on the rotor meshing correctly with the gear in the meter cap(Item6).Insert the cap head screws(Item2)and tighten in a diagonal sequence1,4,2,5,3,7)Replace the cover plate inspect the o-ring(Item8),bevel gear(Item13),for war or damage.(Replace faulty components if necessary).8)Replacement of output shaft,bush and seal.Disassembly of output shafta.Remove the bevel gear.b.Remove the circlip and push out the output shaft assembly,including washer.c.Remove the seal.d.Carefully press out the output shaft bush(If required).Assembly of output shafta.Carefully press the new output shaft bush into place(Use Loctite Primer7471,as per instructions,followed by sealant Loctite680)b.Insert a new seal into the groove of the output shaft bush.c.Replace the output gear and washer and replace the circlip to lock the output gear shaft into place.d.Replace the bevel gear(Item11)and tighten the grub screw onto flat face of shaft.9)Place the o-ring(Item8)into the groove in the meter cap(Item5).(Replace the o-ring seal if required).10)Place the cover plate(Item9)onto the meter.Replace the cover plate screws and tighten the six cap head screws(Item12)firmly.11)Place the lower cover plate of the register into position.Replace the four screws and tighten.12)Position the register correctly on top of the lower register cover.Replace the four screws and tighten.13)Test the meter by turning the rotors with a finger or by applying low air pressure(No more than a good breath)to one end of the meter,before returning meter to the line.。