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DWM2000DDWM 2000 Electromagnetic Flowmeter with LCD IndicatorOperatinginstructions2OperatingInstructionsDWM2000DContents1 Displaydatainoperatingmode…………………………………………………………………..3 2 FunctionsoftheLCDindicatorfortheDWM2000D………………………………………..4 2.1 Programmableparameters………………………………………………………………………..4 2.1.1Flowcalibration………………………………………………………………………4 2.1.2Currentoutputadjustment………………………………………………………….4 2.1.3Timeconstant………………………………………………………………………..4 2.2Electronicsmodulechecks……………………………………………………………………..5 2.3Programmingstructure(Softwaren°1.02)………………………………………………………5 2.3.1Userinterfacebuttons………………………………………………………………5 2.3.2Menunaviagation……………………………………………………………………6 2.3.3Summaryofprogrammingmenus…………………………………………………8 2.4 ParametersstoredintheEEPROM(menu2.4.3)…………………………………………….10 2.5Errormessagelist………………………………………………………………………………..11 OperatingInstructionsDWM2000D31Displaydatainoperatingmode4OperatingInstructionsDWM2000D2FunctionsoftheLCDindicatorfortheDWM2000D2.1Programmableparameters2.1.1FlowcalibrationTheGKcanbemodifiedinmenu2.1.3inordertoobtainthemaximumaccuracyatoperatingconditions.Afieldcalibrationrequiresanaccuratereferenceofvelocity.Themeterrecalibration(GKmodification)isalsorecommendedafteranexchangeofelectronicsmodule.Thevalueofthenewcalibrationconstant(GKnew)canbecalculatedasfollows:GKnew=GKoldxVaVmwith:Va=actualvelocityVm=measuredvelocity(referencevalue)2.1.2CurrentoutputadjustmentTheminimumvalue(i0%)andthemaximumvalue(i100%)ofthecurrentoutputatnormaloperatingconditionscanbeadjustedfrommenus2.2.2.and2.2.3.Theactualvaluesofthei0%andthei100%mustbemeasuredwithanaccuratemilliammeterina4...20mAloop.i0%mustbeintherange3....12mA.Thefactorysettingis4mA.i100%mustbeintherange12....21mA.Thefactorysettingis20mA.2.1.3TimeconstantThetimeconstantvaluecanbesetinmenu2.2.4.Thisvaluerepresentsthetimeneededtodetect63%ofasimulatedflowrateinstantaneouslyraisedfrom0to100%.Timeconstantrange:5,10,15,20,25,30,50m.OperatingInstructionsDWM2000D52.2ElectronicsmodulechecksVariousparametersfromtheelectronicsmodulecanbevieweddirectlyfortroubleshootingpurposes.TheDWM2000switchestoalarmmodewhenthecurrentoutputispermanentlybelow3mA.Inthiscasethecurrentoutputvalueindicatesthetypeoferrorthatoccurs:Obeytheinstructionsthatfollowtofindfaultsandthecorrectiveactionstobeundertaken.Calluptheerrormessages(menu1.2.2.)andnotethelastone.Refertotheerrormessagelist.Replacetheelectronicsmoduleincaseoffatalerror,deactivatethealarmmodeinmenu1.2.1.orthealarmcountinmenu1.2.4(incaseofminorerror).CAUTIONMakesurethattheinstrumentiscorrectlygrounded.Installtheinstrumentinthesequencegivenintheinstallationmanual.AbadmechanicalorelectricalconnectionwillcausetheDWM2000tooperateincorrectly.2.3Programmingstructure(Softwaren°1.02)2.3.1Userinterfacebuttons6OperatingInstructionsDWM2000D2.3.2MenunavigationGothroughthestepsgivenintheillustrationsthatfollowtogettotherequiredmenu.OperatingInstructionsDWM2000D78OperatingInstructionsDWM2000D2.3.3SummaryofprogrammingmenusFct.n°TextDescriptionandsettings1.0.0.TESTMainmenu1.0.0.1.1.0.CHECKALLSubmenu1.1.0.forcheckofelectroniccomponents1.1.1.MAG.FEQ.Frequencyofmagneticfield10Hz≤frequency≤14.5Hz,operatingmode1.1.2.FULLSCALEProgrammedfullscale1m/s≤fullscale≤8m/s1.1.3.UREFInternalvoltagereferenceURef.=2.5V1.1.4.AMPLITestvalueofamplifiercontrolloopValue≥40intestmode1.1.5.EEPCHECKSResultofdatacheckinEEPROM“XXX”:measuredvalue=testhasbeensuccessful“XXX+ALARM”:testhasfailedandalarmmodehasbeenactivated(currentoutputvalue4mA).1.1.6.EPCHECKSResultofdatacheckinEEPROMValue=223091.1.7.ZEROKEYResultofzerocalibrationpushbuttontest“OK”:testhasbeensuccessful;“ALARM”:Thetesthasfailedandalarmmodehasbeenactivated(currentoutput4mA).Thisisonlyatestanddoesnotresettheinstrumenttozero.RefertotheinstallationmanualtousetheZeroCalbuttonontheDWM2000electronicsblockcorrectly.1.2.0.DIAGNOSTICSubmenu1.2.0.Diagnostic1.2.1ALARMMODEDeactivationofthealarmmode(currentoutput4mA)causedbytestfailure(seemenu1.1.2.to1.1.7).“YES”:alarmmodeisenabled“NO”:alarmmodeisdisabled1.2.2.REGFAIL.Alltheerrormessagesthathaveoccurredsincethefirstpower-uparelisted.Maximumstoragecapacity:32messagesSeesection“2.5ErrorMessageList”forthemeaningoferrormessages.1.2.3.TESTMODEActivationofPRODUCT(factoryauto-diagnostictestmode)orCUSTOM(fieldauto-diagnosistestmode=lesssevere).Defaultsetting:CUSTOM(fieldtestmode)1.2.4.ALARMCOUNTResetofthealarmscounter2.0.0.SETUPPARAMETERMainmenu2.0.0.2.1.0.DATABASESubmenu2.1.0.Basedata2.1.1.FULLSCALENotavailable.2.1.3.GKVALUEPrimaryheadcalibrationconstant0.8≤GK≤1.300Seesection“1.1.1.Flowcalibration”onhowtorecalculateGK.2.1.4.CORRECTIONActivationofthelowflowlinearizationforvelocitybelow3m/s.Select“YES”or“NO”,defaultsetting:“YES”OperatingInstructionsDWM2000D9Fct.n°TextDescriptionandsettings2.2.0.CURRENTOUTSubmenu2.2.0.Currentoutput2.2.1.CURRENT?Notavailable2.2.2.I0%Calibrationofthecurrentoutputfori0%Measuretheexactvalueonamilliammeterandpressthe“+”or“-”keyinordertoobtainthewishedvaluefori0%3mA≤i0%≤12mA2.2.3.I100%Calibrationofthecurrentoutputfori100%Measuretheexactvalueonam