RIA15数显仪回路供电

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1、TI01043K/09/EN/03.13ProductsSolutionsServices71226714TechnicalInformationRIA15Loop-powered4to20mAprocessdisplayunitwithoptionalHART®communicationCompactprocessdisplayunitwithverylowvoltagedropforuniversalusetodisplay4to20mA/HART®signalsApplicationYou

2、rbenefits•Displayof4to20mAmeasuredvaluesoroptionallyupto•Noexternalpowersupplyrequiredfourofasensor'sHART®processvariablesinallindustries•Voltagedrop≤1V(HART®≤1.9V)•UseasprimaryorsecondaryHART®master•5-digitmeasuredvaluedisplaywith17mm(0.67in)digit•P

3、anel-mounthousingorfieldhousingaslocaldisplayheightwithdimensionandbargraph;backgroundlighting•Scalabledisplayvaluecanbeactivated•Minimalinstallationdepth•Easy3-keyoperationforconfiguringthedevice•InternationalapprovalsATEX,IECEx,FM,CSA•SILinterferen

4、cefreenessacc.toEN61508•GLmarineapprovalRIA15FunctionandsystemdesignMeasuringprincipleTheRIA15processdisplayunitisintegratedinthe4to20mAorHART®loopandtransmitsthemeasuringsignalorHART®processvariablesindigitalform.Theprocessdisplayunitdoesnotrequirea

5、nexternalpowersupply.Itispowereddirectlyfromthecurrentloop.ThedevicemeetstherequirementsoftheHART®CommunicationProtocolSpecificationsandcanbeusedwithdeviceswithHART®Revision≥5.0.TheLCdisplayiseasytoreadeveninbrightsunlightandenables5-digit,scalableme

6、asuredvaluedisplay.Inadditiontomeasuredvaluedisplay,theassociatedvaluedimensionandabargraphcanbeeasilyconfiguredwithsimple3-keyoperation.Thedevicecanalsobeoperatedwithbacklightingwherenecessary.Insuchcasespayattentiontothehighervoltagedrop.Measurings

7、ystemZone0,1,2Zone1,2Zone1,2A0018915-EN1RIA15asfieldandpaneldisplayInputVoltagedropStandarddevicewith4to20mAcommunication≤1.0VDevicewithHART®communication≤1.9VDisplaylightingadditionally2.9VHART®inputimpedanceRx=40kΩCx=2.3nFMeasuredvariableTheinputv

8、ariableiseitherthe4to20mAcurrentsignalortheHART®signal.HART®signalsarenotaffected.Measuringrange4to20mA(scalable,reversepolarityprotection)Max.inputcurrent200mA2RIA15PowersupplyTerminalassignmentNOTICESELV/Class2device‣Thedevicemayonlybepoweredbyapow