2Operation and Features
84 Keysight E364xA User’s and Service Guide
3 Save the change and exit the menu.
You will see the above message if the security code is correct, and the CAL
MODE message is displayed. To exit the calibration mode, turn the power off
and on.
Notice that if you enter the wrong secure code, INVALID is displayed and the
code entering mode is displayed for you to enter the correct code.
Remote interface operation
To unsecure the power supply, send the above command with the same code
used to secure. For example,
To secure against calibration
You can secure the power supply against calibration either from the front panel or
over the remote interface. The power supply is secured when shipped from the
factory.
Read the security code rules at “Calibration security” on page 82 before
attempting to secure the power supply.
UNSECURED
CAL:SEC:STAT {OFF|ON},<code> Secure or unsecure the power supply.
CAL:SEC:STAT OFF, ‘003640’ (E3640A model)
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