The Resistance Repeater D5072-087 accepts a resistance/RTD or transmitting potentiometer sensor, located in Hazardous Area, and repeats the resistance, with isolation, to Safe Area, suitable for applications requiring SIL 2 level in safety related systems for high risk industries.SIL 2 / SC 3Input from Zone 0/Div. 1Installation in Zone 2/Div. 22/3/4wire res./RTD or potentiometer inputBurnout Fault detectionFully programmable operating parametersHigh AccuracyThree port isolation, Input/Output/SupplyHigh Density, two channels per unitTechnical DataSupplyVoltage24 Vdc nom (18 to 30 Vdc), reverse polarity protectedCurrent Consumption37 mA @ 24 Vdc with 1 mA excitation current, typical.Power Dissipation0.9 W @ 24 Vdc with 1 mA excitation current, typical.InputType2-3 wire Resistance or 2 transmitting pot.Integration timefrom 50 ms to 500 ms.Input range0 to 4 kΩ.Measuring RTD current≤ 0.15 mA.OutputType2-3 wire resistanceTransfer characteristiclinear, scaled or custom.Response time10 to 90 % step: ≤ 10.0 ms (slow), ≤ 1.2 ms (fast).Output range0 to 400 Ω.Excitation current0.1 to 10 mA.FaultTypeBurnout / Internal fault. Output reflects fault condition via highscale (450 Ω) value forcing. Fault condition is also signaled via BUS and red LED on front panel.Input to out performanceRef. Conditions24 V supply, 23 ± 1 °C ambient temperature, slow integration mode, 3 wires configuration for RTD, input/output range 10 to 400 Ω.Calibration and linearity accuracy≤ 200 mΩ typical (Excitation Current ≥ 1 mA); ≤ 300 mΩ typical (0.5 mA ≤ Excitation Current Temp. influence± 20 mΩ/°C, typical (Excitation Current ≥ 1 mA).IsolationTest VoltageI.S. In/Out 2.5 kV; I.S. In/Supply 2.5 kV; I.S. In/I.S. In 500 V; Out/Supply 500 V; Out/Out 500 V.Environmental conditionsOperating temperaturetemperature limits –40 to +70 °CStorage temperaturetemperature limits –45 to +80 °C.Safety descriptionEquipmentAssociated apparatus and non-sparking electrical equipment.Safety parametersUo = 7.2 V, Io = 16 mA, Po = 27 mW, Ui = 12.8 V, Ci = 0 nF, Li = 0 nH at terminals 7-8-9, 10-11-12. Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C.MountingTypeDIN-Rail 35 mm, with or without Power Bus.Weightabout 135 gConnectionby polarized plug-in disconnect screw terminal blocks to accommodate terminations up to 2.5 mm² (13 AWG).DimensionsWidth 12.5 mm, Depth 123 mm, Height 120 mm.Status: ACTIVEChannels: 2Certifications:ATEX, IECEx, EMC, Ex, Maritime, Metrological, SIL certificates available (see documentation links).