电磁流量计英文版说明书(LS)

Measurementisnotaffectedbythevariationofflowdensity,viscosity,temperature,pressureandconductivity.Highaccuracymeasurementisguaranteedaccordingtothelinearmeasurementprinciple.Noobstacleinthepipe,nopressure-lossandlowerrequirementforstraightpipeline.DN6toDN2000coversawiderangeofpipesize.Avarietyoflinersandelectrodesareavailabletosatisfydifferentflowcharacteristic.Programmablelowfrequencysquarewavefieldexcitation,improvingmeasurementstabilityandreducingpowerconsumption.Implementing16bitsMCU,providinghighintegrationandaccuracy;Full-digitalprocessing,highnoiseresistanceandreliablemeasurement;Flowmeasurementrangeupto1500:1.HighdefinitionLCDdisplaywithbacklight.RS485orRS232interfacesupportsdigitalcommunication.Intelligentemptypipedetectionandelectrodesresistancemeasurementdiagnosingemptypipeandelectrodescontaminationaccurately.SMDcomponentandsurfacemounttechnology(SMT)areimplementedtoimprovethereliability.1.2MainApplicationselectromagneticflowmetercanbeusedtomeasurethevolumeflowofconductivefluidinaclosedpipeline.Itiswidelyappliedintheflowmeasurementandcontrolinthefieldsofchemicalandpetroleumindustry,metallurgyindustry,waterandwastewater,agricultureandirrigation,papermaking,foodandbeverageindustryandpharmaceuticalindustry.1.3AmbientConditionsAmbienttemperature:sensor:-25℃to+60℃;converter:-25℃to+60℃.Relativehumidity:5%to90%;1.4WorkingConditionsMaximumfluidtemperature:Compacttype:60℃Remotetype:Teflon150℃Neoprene80℃;120℃Polyurethane70℃Fluidconductivity:≥5S/cm2.WORKINGPRINCIPLES2.1MeasuringPrinciplesThemeasuringprincipleofelectromagneticflowmeterisbasedontheelectromagneticinductionlawofFarady.Thesensorismainlycomposedofmeasuringtubewithisolatelining,apairofelectrodesinstalledbypenetrationofthemeasuringtubewall,apairofcoilsandironcoretoproduceworkingmagneticfield.Whentheconductivefluidflowsthroughthemeasuringtubeofthesensor,thevoltagesignalindirectproportiontotheaverageflowvelocityofthefluid:compact-typeandremote-type.Therearesevenkindsofelectrodematerialsandfourkindsofliningmaterialsavailableforsensor.4.TECHNICALSPECIFICATION4.1TheflowmeteriscomplianttoStandard“JB/T9248-1999ElectromagneticFlowMeter”.4.2Maximumflowspeed:15m/s4.3DNsize:3,6,10,15,20,25,32,40,50,65,80,100,150,200,250,300,350,400,450,500,600,700,800,900,1000,1200,1400,1600,1800,20004.4Accuracy:0.5%,0.2%4.5NominalPressure:4.0MPa(DN0-150)1.6MPa(DN200-600)1.0MPa(DN700-1200)0.6MPa(DN400-2000)Orotherspecifiedbyorder4.6MaterialsElectrodeFormsandMaterials:Electrodedesignhasfourforms:standardform,scraperform,detachableformandgroundingelectrode.ElectrodematerialisselectablefromstainlesssteelcontainingMo,stainlesssteelcoatedwithcarbonizedtungsten,HastelloyB,HastelloyC,Titanium,Tantalumandplatinum-iridiumalloy.Flangematerial:carbonsteelGroundingring:stainlesssteelInletprotectionring:carbonsteel,stainlesssteel4.7EnclosureIP65:IP68:onlyavailableforremote-typesensorwithneopreneorpolyurethaneliner,notincludingflameproofmodel.4.8FlameproofStandardDN15-DN600compact-type:mdIIBT4DN15-DN1600remote-type:sensorandconverterbothinstalledindangerousarea:mdIIBT4.DN15-DN1600remote-type:sensorinstalledindangerousareaandconverterinstalledinsafearea:mdIIBT44.9ConnectionCableSpecialcableisneededtoconnectthesensorandtheconverterforremote-typeflowmeter.Thecablelengthshouldnotexceed100meters.A10-metercableissuppliedfreeofchargeandPowersupply:AC85-265V,45-63Hz,≤20W;DC11-40VConverterdisplayandoperation:fourkeysareavailabletosetallparameters.ExternalhandheldorPCcanbeusedtodotheconfiguration.HighresolutionLCDdisplaywithbacklight,emptypipedetectionandself-diagnosticfunctionareequippedintheconverter.Digitalcommunication:RS485,RS232,MODBUS,REMOTEOutputSignals:-Currentoutput:fully-isolated,4-20mA/0-10mAloadresistance:0-10mA:0-1.5KΩ;4-20mA:0-750Ω.-Frequencyoutput:bidirectionalflowoutput.Frequencyoutputisproportionaltotheflowpercentageofthefullrange.Theconverterprovidesfullyisolatedtransistoropencollectorfrequencyoutputrangedfrom1to5000Hz.TheexternalDCpowersupplyshouldnotexceed35Vandmaximumcollectorcurrentis250mA.-Pulseoutput:bidirectionalflowoutput.Theconvertercanoutputupto5000cp/spulseseries,whichisdedicatedtoexternaltotalization.Pulsefactorisde