8000 Zone2.pdf

8-channel Analog Output4–20mA with HART ®8202-HO-IS◆◆8 single ended output channelsintrinsically safe field circuitsHazardous areaZone 0/Div 1Safe areaor Zone 2/Div 2 hazardous area◆4–20mA for I/P converters◆open-circuit field wiring detection◆◆HART pass-throughHART variable and status reportingHHCChannel 1 of 8#RailbusMODULE SPECIFICATIONSee also System SpecificationPI4-20mAOUTPUTSNumber of channels ...........................................................8Nominal signal range (span) ...............................4 to 20mAFull signal range....................................................1 to 22mAVoltage to load...........................................13V min. @ 20mALoad resistance ..............................................0 to 650Ω max.Accuracy (@ 25°C).......................................................± 20µATemperature stability(–40°C to + 70°C) ................................± 0.006% of span per °CResolution ....................................................................12 bitsOpen circuit detection threshold ......................> 685Ω (typ.)(also detects loads greater than driveable range)Isolation(any channel to Railbus) ...................................................60V ac(between channels)..............................................................noneCONFIGURABLE PARAMETERSOutput initialisation state .............................predefined valueDrive on “fail-safe” ................ upscale /downscale /last valueChannel status................................................ active /inactiveHART variable and status reporting .............enable/disableSAFETYLocation of moduleField wiring protection..........................................[EEx ia] IICSafety description(each channel)..................V o = 24.6V, I o = 93mA, P o = 0.57WFM entity parameters ...................V OC ≤ 24.6V dc, I SC ≤ 93mA...........................................................C a ≤ 0.42µF, L a ≤ 4.2mHPOWER SUPPLIESIS Railbus (12V) current(all channels @ 22mA into 650Ω load)..............................630mAPower dissipation within module .....................4.1W (max.)MECHANICALModule Key Code .............................................................A4Module width ...............................................................42mmWeight ............................................................................265gRESPONSE TIMERailbus command to output change4-20mA mode .......................................................20ms (typ.)............................................................................80ms* (max.)HART mode.......................................................1s per channel*Time to reach 90% level for 4--20mA step into 650Ω loadFIELD TERMINALField wiring typeIntrinsically safe standardIntrinsically safeloop disconnectRecommendedField Terminal8621-FT-IS8622-FT-ISEUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283AMERICAS Tel: +1 603 926 0090 Fax: +1 603 926 1899ASIA PACIFIC Tel: +65 487 7887 Fax: +65 487 7997E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.comOct 2006