GMA41/GMA44控制器lEasymountingonDIN-raillState-of-the-artmicroprocessortechnologylFlexible,forallmeasuringtaskslFor1to4tran***itterslCanalsobeconfiguredatalaterstageFixedsystemsgaswarningforDIN-railmounting：TheGMA41,onechannelgaswarningsystem,andthe4-channeldeviceGMA44togetherwiththeefficientandrobusttran***ittersofGfGoffersafeandreliablegaswarningsystems.Alarmthresholds：Bothsystemsh***ethreealarmlevels.Everyalarmcanbeadjustedseparately.Falsealarmsareeliminatedwiththeadjustablealarmdelay.Thethresholdvaluescanbefreelyadjustedwithinthedetectionrange.Theycanalsobeadjustedatalaterstagewiththecontrolkeystoadapttochangingrequirements.Everythresholdvaluecanbeselectedtobelatching/non-latchingandresettable/non-resettable.Alarmrelaying：Everycontrollerprovides4voltage-freerelaysforthethreealarmsandthefaultwarning.Therelaysmaybeusedtocontrolexternalalarmdeviceslikelampsorhorns.Theyevencanintroducespecificcountermeasurestopreventorlimitdangersfromgasesorvapours.AdditionalFeatures：TheGMA41andGMA44storeminimumandpeakvaluesandthereforeafteranalarm,thegasdangercanexactlybedetermined.Withthehelpofthekey-operatedswitch,allconnectedGMA'scanbeswitchedtoacollectivealarm.TheGMA(variantB)offersanintegratedBus-system.TheBus-systemtransfersalarmsandmalfuncti***foracollectivealarmandestablishestheconnectionofthepowersupplyforallGMA´s.SeveralGMA´scansimplybeconnectedwithoutanyadditionalwiringrequired.ECversi***areintegratedwithatransformerfor230Vvoltagesupply.TheGMAECwithhighvoltagecaneffectivelyoperatealltran***itterswithelectrochemicalsensors.TheECBversiontakesthemultipletechnologyfromtheintegratedtransformerwiththebussystemtocreateadynamicsensorthatstillsuppliesa230Vvoltage.GMA41/44：Gasesdependingontran***itter:combustible/explosive,toxicgasesandvapors,oxygenDetectionrangedependingonrequirements:%LEL,Vol%,ppm,mg/m3Ambienttemperature-20..+50ºC(-4to+122ºF)Powersupply24VDC,230V(GMA41EC/44EC)Powerc***umptionMax.4W,normal2WInputsignal0,2..1mA/4..20mAOutputsignalLinearsignal4..20mA(GMA41)Dimensi***106x90x58mm(WxHxD)(4.24x3.6x2.32inches)CalibrationAutomaticzeroing,calibrationwithdataloggingAlarms3Alarmthresholds,freelyadjustablewithinthedetectionrangeAlarmfuncti***Exceeding/fallingshort,latching/non-latching,resettable/non-resettable,hysteresisadjustable,delay-time0..2minutes,alarmthresholdscompletelyadjustable,alarmallocationbyGMA44Relayoutputs4voltage-freerelaysforalarmandfault,normallyclosedcontact(NC),normallyopencontact(NO),change-overcontacts.Load:1000VA,5ADisplay3-digitLEDdisplayforlinearmeasurementvalues,Service1LEDgreen-operationalstatus1LEDyellow-fault3LEDsred-alarmdisplayofmaximum/minimumvaluesFunctionkeys4differentkeysforallfuncti***,likealarmthresholds,calibration,functiontestandrelaytestFunctiontestPFGNo.41300500ModelsGMA41/GMA44Powersupply24VGMA41B/GMA44BBussystem,powersupply24VGMA41EC/GMA44ECPowersupply230V,foroperationofelectrochemicalsensorwith0,2..1mAsignaloutputGMA41ECB/GMA44ECBPowersupply230V,foroperationofelectrochemicalsensorwith0,2..1mAsignaloutput,bussystemKey-operatedswitchGMA41/GMA44SW(24V)GMA41/GMA44SW(230V)PowerSupplyModulePS12(12W)PS30(30W)PS50(50W)