D5273S
SIL 2 Temperature Signal Converter, Multifunction, Trip Amplifiers
Description
The 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 automatic, using an internal temperature sensor or fixed to a user-customizable temperaturevalue. D5273S offers two independent trip amplifiers via two SPDT output relays.
Features
• SIL 2 / SC 3• Input from Zone 0/Div. 1
• Installation in Zone 2/Div. 2
• mV, TC, 2/3/4wire res./RTD or potentiometer input
• Two independent Trip Amplifiers (SPDT relay contacts)
• Inversion/scaling/custom output
• Selectable CJC: internal PT1000, external RTD or fixed
• Fastest integration time: 50 ms
• Burnout/internal/cjc/in sensor fault monitor
• Alarm output with user-settable trip points
• Modbus RTU RS-485 for monitor & configuration
• Fully programmable operating parameters
• High Accuracy, μP controlled A/D converter
• Three port isolation, Input/Output/Supply
