Weidmuller URTR - Universal glavanically isolated signal converter - Handbuch (Seite 20)

20
•Calibration
General
The URT/R is factory calibrated and you can select any input range
without recalibrating the unit. However, if you change the RTD type,
you must calibrate the inputs.
Allow the instrument 1 minutes of powered operation (to reach a
stable temperature) before calibration and, during calibration, allow a
few seconds for signals to stabilise before accepting the value.
Equipment requirements
• A suitable RTD simulator (accurate to 0.0 °C)
Inputcalibrationpoints
Calibrationpoint
Pt100 Ni120
Display Temperature(°C) Display Temperature(°C)
1 -200 -200.0 °C -80n -80.0 °C
2 700P 700.0 °C 320n 320.0 °C
3 -100 -100 °C -80n -80.0 °C
4 200P 200.0 °C 200n 200.0 °C
Terminalconnectionsforinputcalibration
CalibrationStage Signaltype Terminal
RTD Inputs
RTD Simulator A 2
RTD Simulator B 3
RTD Simulator Bsense 4