Signal amplifier D5274S

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I.S. SIL2 Temp. Trip Amplifier with Zero/Span TrimmersThe Temperature Converter & Trip Amplifier D5274 accepts a low level dc signal from millivolt/thermocouple or 2-3-4 wire resistance/RTD or 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. Front trimmers allow easy zero & span current adjustment. Cold junction compensation can be programmed as automatic, using an internal or external temperature sensor or fixed to a user customizable temperature value. D5274S offers two independent trip amplifiers via two SPDT output relays, whose thresholds are fully programmable. Extended power supply range guarantees functionality at 24 Vdc as well as 12 Vdc nominal voltage.SIL 2 / SC 3 (pending)Input 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 fault monitorAlarm output with user-settable trip pointsZero/span output current trimmersExtended power supply for 12/24 Vdc nominal voltageFully programmable operating parametersHigh Accuracy, µP controlled A/D converterThree port isolation, Input/Output/SupplyTechnical Specifications:Supply: 12/24 Vdc nominal (9 to 30 Vdc), reverse polarity protected. Current consumption: 45 mA @ 24 Vdc with 20 mA output and relays energized, typical. Power dissipation: 1.0 W @ 24 Vdc with 20 mA output on 250Ω load and relays energized, typical.Input: Millivolt/thermocouple, 2-3-4 wire resistance/RTD or 3 wire potentiometer. Input range: ±500 mV (mV), 0-5 kΩ (res), up to 10 kΩ (pot). Response time: 1 s.Output: Current 0/4 to 20 mA. Max load resistance: 300 Ω. Max output voltage: 30 V. Min output voltage: 15 V. Short circuit current: 24 mA, typical. Transfer characteristic: linear, direct or reverse on all input sensors. Two front trimmers for independent zero/span calibration.Alarm: Two voltage free SPDT relay contacts. Trip point range within rated limits of input sensor. Contact rating: 4 A 250 Vac 1000 VA, 4 A 250 Vdc 120 W (resistive load). Linear derating from 4 A (60 °C) down to 2 A (70 °C).Fault: Fault can be issued in case of input sensor burnout. Response time: 1 s. Fault signalling: common fault bus, alarm contacts, output current.Input performance: Ref. Conditions: 24 Vdc supply, 250 Ω load, 23 ± 1 °C Tamb. Linearity accuracy: ≤ ±25 μV (mV), ±0.25 Ω (res), ±0.05% (pot). Calibration accuracy: ≤ ±40 μV (mV), ±0.5 Ω (res). Temp. influence: ≤ ±10 μV (mV), ±0.2 Ω (res), ±0.02% (pot).Output performance: Ref. Conditions: 24 Vdc supply, 250 Ω load, 23 ± 1 °C Tamb. Linearity accuracy: ≤ ±10 μA. Calibration accuracy: ≤ ±10 μA. Temp. influence: ≤ ±1 μA.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: Associated apparatus and non-sparking electrical equipment. Safety parameters: Uo = 7 V, Io = 22 mA, Po = 38 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