TheZDTAnalyzer/Alarmunitisaversatilemicroprocressorbasedoxygenanalyzerdesignedprimarilytomeettherequirementsofthemediumsizedboilerandfurnacemarket,utilizinghighqualityzirconiaoxygenprobes,forenergymanagement.ThelowtemperatureversionoftheZDTisdesignedtooperatewiththeModelZFG2lowtemperatureoxygenprobe.Theprobesensoriscontrolledat700 C.ThehightemperatureversionoftheZDTisdesignedtooperatewiththeModelZGP2oxygenprobe.Theprobesensoristemperaturecompensatedfrom600 to1400 C.IntheeventofprobethermocouplefailurethetemperatureoftheprocesscanbepresetintheZDT.Thestandardanalyzerhashigh/lowalarmrelaysandasinglelinearorlogarithmicisolatedretransmission.Displayfeaturesinclude%O2,celltemperature,heatercontroloutput,cellmV,alarmsetpoints,calibrationsequencediagnosticsandoutputsettings.TheanalyzerprovidesoxygenreadoutwithcomputationbasedontheprobemVsignal.ThemVoutputsignalisNernstianinformandfollowstheequation:P0E(mV)=0.0496T(log10 ) C(mV)