***LA-2传感器-美国原装-传感器美国Omega深圳市鑫博恒业科技有限公司***供应***LA-2传感器-美国原装传感器美国Omega***LA-2传感器-美国原装传感器美国Omega***LA-2过程测量和控制仪器»信号调节器和***»***LA-SERIES直流输入现场可配置限报***la-1（行程单、双刀双掷，5A）***la-2（单/双行，2个单刀双掷，5A）直流电压和电流的现场可配置输入范围独有的“动态死区”防止虚***旅行在一个预先设定的直流输入电平提供继电器触点闭合可编程的高或低设定值故障/闭锁操作可选的120/240VAC输入功率产品描述***LA-1singlesetpointand***LA-2dualsetpointlimitalarmsofferflexible,wide-rangingDCinputcapability.Voltagespansfrom10mVto200Vandcurrentspansfrom1mAto100mAcanbefieldconfigured.Bipolarinputsarealsoaccepted.Bothmodelsofferconfigurablelatching,failsafeandHI/LOoperation.The***LA-1and***LA-2alsoinclude0.25%to50%adjustabledeadbandsandable120/240Vacinputpower.Models***LA-1and***LA-2areequippedwithadualfunctiondiagnosticLED.ThegreencenterLEDindicateslinepowerandinputsignalstatus.ActivelinepowerisindicatedbyanilluminatedLED.IfthecenterLEDisoff,checklinepowerandthewiringconnection.Iftheinputsignalisabove100%fullscale,theLEDwillflashatapproximately8Hz.Below0%,theflashrateisapproximately4Hz.Thesinglesetpoint***LA-1andthedualsetpoint***LA-2providethefollowingrelayoutputs:***LA-1SingleTrip(DPDT,5A);***LA-2Single/DualTrip(2SPDT,5A).Setpointsaretopaccessedmulti-turnpotentiometers.Thefieldconfigurable***LA-1and***LA-2limitalarmsetpointscanbeconfiguredforHI,LO,latchingorfailsafetripoperation.Non-latchingHIandLOsetpointsh***erespectiveHIandLOdeadbands.Inatrippedcondition,thesetpointisexceededandtheappropriateredLEDwillilluminate.ThetripwillresetonlywhentheprocessfallsbelowtheHIdeadbandorrisesabovetheLOdeadband.Toresetalatchedsetpointthesignalmustbeinthesaferegionandthelinepowerturnedoffforatleast5seconds.Forproperdeadbandoperation,aHIsetpointmustalwaysbesetaboveaLOsetpoint.Infailsafeoperation,therelayisenergizedwhentheprocessisbelowtheHIsetpointorabovetheLOsetpoint(oppositefornonfailsafe).Inthefailsafemode,therelaysgotothetrippedconditionwhenthepowerfails.Theinputmustremainbeyondthesetpointfor100milliseconds,uninterrupted,toqualifyasavalidtripcondition.Likewise,theinputmustfalloutsidethedeadbandandremaintherefor100millisecondstoreturnthealarmtoanuntrippedcondition.Thiseffectivelyresultsina“dynamicdeadband”-basedontime-inadditiontothenormaldeadband.Specificati***INPUTVoltageInput(UnipolarorBipolar):Range:10mV,20mV,50mV,100mV,200mV,500mV,1V,2V,5V,10V,20V,50V,100V,200V(dip-switchable)Impedance:gt;100kΩOvervoltage:400VmaxCurrentInput(UnipolarorBipolar):Range:1mA,2mA,5mA,10mA,20mA,50mA,100mA(dip-switchable)Impedance:20ΩtypicalOvercurrent:200mAmaxOvervoltage:60VdcCommonMode(InputtoGround):1000VdcmaxLEDIndicati***:InputRange(Green):gt;100%Input:8Hzflashlt;0%Input:4HzflashSetpoint(Red):Tripped:SolidredSafe:OffLimitDifferential(Deadband):gt;50mV/5mA:0.25%to50%ofspanlt;50mV/5mA:1%to50%ofspanResp***eTime:DynamicDeadband:Relaystatuswillchangewhenpropersetpoint/processconditionexistsuninterruptedfor100msecNormalMode(AnalogFiltering):lt;250msec,(10to90%)Setpoint:Effectivity:Setpointsareadjustableover100%oftheedinputspanRepeatability(C***tantTemp):gt;50mV/5mA:0.1%offullscalelt;50mV/5mA:0.2%offullscaleStability:LineVoltage:&plu***n;0.01%/%maxTemperature:&plu***n;0.05%offullscale/°CmaxCommonModeRejection:DCto60Hz:120dBIsolation:1000Vdcbetweencontacts,inputandpowerESDSusceptibility:MeetsIEC801-2,Level2(4KV)Humidity:Operating:15to95%RH@45°C(113°F)Soak:90%RHfor24hours@65°C(149°F)TemperatureRange:Operating:0to60°C(32to140°F)Storage:-15to70°C(5to158°F)Power:120/240Vac&plu***n;10%,50to60Hzable,2Wtypical,5WmaxRelayContacts:***LA-1:DPDT(2FormC)***LA-2:1SPDT(1FormC)persetpointCurrentRating(Resistive):120Vac:5A;240Vac:2A;28Vdc:5A(externalrelaycontactprotectionisrequiredforusewithinductiveloads)Material:Silver-CadmiumOxideElectricalLife:105operati***atratedloadMechanicalLife:107operati***LatchResetTime:5secondsWeight:***LA-1:209g(0.46lb)***LA-2:282g(0.62lb)产品编号产品描述***LA-1SinglesetpointDCinputfieldconfigurablelimitalarm***LA-2DualsetpointDCinputfieldconfigurablelimitalarmAccessoriesSKT-DR-11P11-pinsocket,DINrailmountSKT-***-11P11-pinsocket,surfacemount***-RAIL-235mmDINrail,2m(6.6')length***RSRetainingspring(secureslimitalarmmoduleintoDINrailorsurfacemountsocket)***LA-1信号调节器美国omega***LA-2信号调节器美国omega***LA-TC信号调节器美国omega***LA-2***LA-2传感器-美国原装***LA-2传感器-美国原装传感器美国Omega相关产品)