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B - Verification and Calibration
AC Current Measurement Calibration (Agilent 66332A only)
Action
26.
Disconnect all loads from the dc source. Make sure the mode switch
on the rear panel is set to Normal.
27.
Press Shift Cal, scroll to CAL CURR MEAS AC, and press Enter.
28.
Wait for the dc source to compute the ac current calibration constant.
The display returns to Meter mode when the calculation is complete.
Saving the Calibration Constants
WARNING:
Storing calibration constants overwrites the existing ones in non-volatile memory. If you
are not sure you want to permanently store the new constants, omit this step. The dc
source calibration will then remain unchanged.
Action
Press Shift Cal, scroll to CAL SAVE, and press Enter.
29.
Press Shift Cal, select CAL OFF, and press Enter to exit Calibration
30.
mode. *RST and *RCL will also set the calibration state to OFF.
Calibration Error Messages
Errors that can occur during calibration are shown in the following table.
Error
401
CAL switch prevents calibration (This is a hardware disable, see the Service Manual.)
402
CAL password is incorrect
403
CAL not enabled
404
Computed readback cal constants are incorrect
405
Computed programming cal constants are incorrect
406
Incorrect sequence of calibration commands
62
Table B- 7. GPIB Calibration Error Messages
Meaning
Display
CAL:CURR:MEAS AC
Display
CAL:SAVE
CAL OFF
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