Calibration – Weidmuller PMX400TMP - Display instrument for control panel User Manual
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•Calibration
The PMX400/TMP is factory calibrated. Once calibrated the PMX400/
TMP will operate with any sensor type or range, and any output type
or range, without recalibration. Youshouldnothavetorecalibratethe
instrumentbeforeinstallation.
Equipmentrequirements
• A suitable millivolt source (accurate to μV or better)
• An accurate digital multimeter (accurate to 0.0 mV and ±0.1 μA)
• A Pt100 Rtd simulator (accurate to 0.0 ˚C)
TerminalConnectionsforcalibration
CalibrationStage
Signaltype
Terminal
milliVolt inputs
Millivolt source (+)
11
Millivolt source (–)
10
CJC Circuit
Millivolt source (+)
9
Millivolt source (–)
10
RTD Inputs
Rtd simulator B
10
Rtd Simulator Bsense
11
Rtd Simulator A
12
Analogue Current Output
mA output +
3
mA output –
4
Analogue Voltage Output
V output +
3
V output –
5
Summary
There are four stages to calibrating the PMX400/TMP
• Calibrate the millivolt inputs
• Calibrate the CJC input
• Calibrate the RTD input
• Calibrate the analogue outputs
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