User`s guide

Verification and Calibration - B
145
AC Current Measurement Calibration (Agilent Model 66311B Only)
Action Display
26. Disconnect all loads from the dc source but leave the sense
jumpers in place.
27. Hold the calibration switch on the back of the unit in the “ON”
position until after the ac calibration completes (in step 29).
28.
Press Shift Cal and scroll to CAL CURR MEAS AC, and press
Enter.
CAL:CURR:MEAS AC
29. Wait for the dc source to compute the ac current calibration
constant. The display returns to Meter mode when the calculation
is complete. Release the calibration switch on the back of the unit.
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 Display
30.
Press Shift Cal, scroll to CAL SAVE, and press Enter.
CAL:SAVE
31.
Press Shift Cal, select CAL OFF, and press Enter to exit Calibration mode.
*RST and *RCL will also set the calibration state to OFF.
CAL OFF
32. If you changed that language settingfrom Compatibility to SCPI in step #1,
change the language setting back to Compatibility.
Restore the Language Setting
NOTE: Perform this procedure only if you changed the programming language from COMP to
SCPI in the beginning of the calibration procedure.
Action Normal Result
33. Access the Address menu and scroll to the LANG: command. LANG: SCPI
34. Change the language from SCPI to COMPatibility, and press Enter. LANG: COMP