Agilent Technologies U3606A - Changing the Calibration Security Code; Resetting the Security Code to the Factory Default

Calibration Procedures 6
Calibration Security
U3606A User’s and Service Guide 179
Changing the calibration security code
The security code can only be changed from the remote interface after the
instrument has been unsecured.
Send the CALibration:SECurity:CODE <new_code> command from the
remote interface after the instrument has been unsecured.
See the CALIbration subsystem in the U3606A Programmer’s Reference
for more information on the CALibration:SECurity:CODE <new_code>
command.
Resetting the security code to the factory default
If you have forgotten the correct security code, you may follow the steps
below to change the security code back to the factory default (ATU3606A).
To unsecure the instrument without the correct security code, follow the
steps below.
& CAL:SEC:CODE OFF,
ATU3606A
This command unsecures the instrument for
calibration. The default security code is
ATU3606A. The security code can only be
changed when the instrument is unsecured.
& CAL:SEC:CODE ABC1234
This command changes the security code to
“ABC1234”.
& CAL:SEC:CODE ON, ABC1234
This command secures the instrument from
accidental or unauthorized adjustments.
NOTE
If you do not have a record (or have lost the record) or the security code,
first try the factory default code — “3606”, from the front panel or
“ATU3606A”, from the remote interface — before you use the procedure
below.