Weidmuller UTCAR - Universal glavanically isolated signal converter - Handbuch (Seite 22)

22
•Calibration
General
The UTC/AR is factory calibrated to a specific output range and format.
During calibration allow a few seconds for signals to stabilise before
accepting the value.
Note: The millivolt source must be connected directly to the input
terminals using copper wire. Remove the CJC board first.
Equipment requirements
• A suitable, stable millivolt source (accurate to 0.0 mV)
• An accurate digital multimeter (accurate to 0.0 mV and ±0.1 μA)
Terminalconnectionsforinputcalibration
CalibrationStage Signaltype Terminal
Input circuit
millivolt source + 2
millivolt source − 3
Inputcalibrationprocedure
Whenthe
displayshows
Action/Description ENT ï
Put the instrument in setup mode and scroll through the main menu
C Pn Press Å or ì
C Py Calibrate inputs? Start No
Connect the current source to the inputs (for connections see over page).
E=0 Set the millivolt source to 0.00 mV (and wait a few seconds) Calibrate Skip
E=8 Set the millivolt source to 8.00 mV (and wait a few seconds) Calibrate Skip
E=15 Set the millivolt source to 15.00 mV (and wait a few seconds) Calibrate Skip
E=30 Set the millivolt source to 30.00 mV (and wait a few seconds) Calibrate Skip
E=60 Set the millivolt source to 60.00 mV (and wait a few seconds) Calibrate Skip
AL=Y Continue with the setup sequence.
Note 1: To discard changes to calibration and setup you can remove the power at this point.
Note 2: If the display shows OPEn check that the input simulator is properly connected.