User`s guide

B - Verification and Calibration
62
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
26.
Press Shift Cal, scroll to CAL SAVE, and press Enter.
CAL:SAVE
27.
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
Calibration Error Messages
Errors that can occur during calibration are shown in the following table.
Table B-6. GPIB Calibration Error Messages
Error Meaning
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
Changing the Calibration Password
The factory default password is 0. You can change the password when the dc source is in calibration
mode (which requires you to enter the existing password). Proceed as follows:
Action Display
1.
Begin by pressing Shift Cal and scrolling to the CAL ON command.
CAL ON 0.0
2.
Enter the existing password from Entry keypad and press Enter
3.
Press Shift Cal and scroll to the CAL PASS command.
CAL:PASS 0
4. Enter the new password from the keypad. You can use any number with up
to six digits and an optional decimal point. If you want the calibration
function to operate without requiring any password, change the password to
0 (zero).
NOTE: If you want the calibration function to operate without requiring any password, change
the password to 0 (zero).