Calibration – Weidmuller UPIT - Analog to frequency converter Benutzerhandbuch
Seite 23
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23
•Calibration
General
The UPI/T is factory calibrated. Once calibrated it will operate with any
input format.
Allow the instrument 1 minutes of powered operation (to reach a
stable temperature) before calibration.
During calibration allow a few seconds for signals to stabilise before
accepting the value.
Equipment requirements
• A suitable current or voltage source
• An accurate digital multimeter (accurate to 0.0 mV and ±0.1 μA)
Terminalconnectionsforinputcalibration
CalibrationStage
Signaltype
Terminal
Current (mA) inputs
Millivolt source +
2
Millivolt source −
3
Voltage (V) inputs
Voltage source +
4
Voltage source −
3
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