Signal amplifier D5273S

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I.S. SIL2 Temperature Converter & Trip AmplifierThe Temperature Converter & Trip Amplifier D5273 accepts a low level dc signal from millivolt, thermocouple or 2-3-4 wire RTD or transmitting potentiometer sensors, located in Hazardous Area, and converts, with isolation, the signal to drive a Safe Area load, suitable for applications requiring SIL 2 level in safety related systems for high risk industries. Output signal can be direct or reverse. Modbus RTU RS-485 output is available on Bus connector. Cold junction compensation can be programmed as Internal: provided by an internal PT1000 sensor; Fixed: to a user-customizable temperature value; External remote: ext. RTD placed away, on a support terminal board; External local: ext. RTD placed close to the module terminal block. D5273S offers two independent trip amplifiers via two SPDT output relays.SIL 2 / SC 3Input from Zone 0/Div. 1Installation in Zone 2/Div. 2mV, TC, 2/3/4wire res./RTD or potentiometer inputTwo independent Trip Amplifiers (SPDT relay contacts)Inversion/scaling/custom outputSelectable CJC: internal PT1000, external RTD or fixedBurnout/internal/cjc/in sensor fault monitorAlarm output with user-settable trip pointsModbus RTU RS-485 for monitor & configurationFully programmable operating parametersHigh Accuracy, µP controlled A/D converterThree port isolation, Input/Output/SupplyTechnical Specifications:Supply: 24 Vdc nom (18 to 30 Vdc), reverse polarity protected. Current Consumption: 72 mA @ 24 Vdc with 20 mA output and relays energized, typical. Power Dissipation: 1.7 W @ 24 Vdc with 20 mA output and relays energized, typical.Input: Millivolt, thermocouple, 2-3-4 wire RTD or 3 wire transmitting potentiometer. Integration time: 50 ms to 500 ms. Input range: -500 to +500 mV for TC/mV, 0-4 kΩ for resistance.Output: 0/4 to 20 mA, on max. 300 Ω load, current limited @ 24 mA. Transfer characteristic: linear, direct or reverse on all input sensors.Alarm: Trip point range: within rated limits of input sensor. Output: two voltage free SPDT relay contacts. Contact rating: 4 A 250 Vac 1000 VA, 4 A 250 Vdc 120 W (resistive load).Modbus interface: Modbus RTU RS-485 up to 115.2 kbps for monitor/configuration/control.Input performance: Ref. Conditions: 24 V supply, 250 Ω load, 23 ± 1 °C ambient temperature, slow integration speed, 4 wires configuration for RTD. Calibration and linearity accuracy: refer to Instruction Manual. Temp. influence: ≤ ± 2 µV on mV/Tc, ± 20 mΩ on RTD (≤ 300 Ω @ 0°C) or ± 200 mΩ on RTD (> 300 Ω @ 0°C), ± 0.02 % on pot. for a 1 °C change. Ref. junction compensation accuracy: ≤ ±3 °C (internal CJC), ≤ ±1.5 °C (external local CJC), according to RTD (external remote CJC).Output performance: Ref. Conditions: 24 V supply, 250 Ω load, 23 ± 1 °C ambient temperature, slow integration speed, 4 wires configuration for RTD. Calibration accuracy: ≤ ± 10 µA. Linearity accuracy: ≤ ± 10 µA. Temp. influence: ≤ ± 2 µA/°C.Isolation: Test Voltage: I.S. In/Out 2.5 kV; I.S. In/Supply 2.5 kV; I.S. In/Alarms 2.5 kV; Out/Supply 500V; Out/Alarms 1.5 kV; Alarms/Supply 1.5 kV; Alarms/Alarms 1.5 kV.Environmental conditions: Operating temperature: –40 to +70 °C. Storage temperature: –45 to +80 °C.Safety description: Equipment: Associated apparatus and non-sparking electrical equipment. Safety parameters: Uo = 7.2 V, Io = 23 mA, Po = 40 mW at terminals 13-14-15-16. Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C.Mounting: DIN-Rail 35 mm, with or without Power Bus. Weight: about 195 g. Connection: by polarized plug-in disconnect screw terminal blocks to accommodate terminations up to 2.5 mm² (13 AWG). Dimensions: Width 22.5 mm, Depth 123 mm, Height 120 mm.Channels: 1Status: ACTIVE