Keysight U1211A Guía Del Usuario Y Servicios página 99

Resetting the security code to 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 (1234).
1 Record the last 4 digits of the clamp meter serial number.
2 Press Range/Auto for more than 1 second while rotating the rotary switch to
3 The annunciator primary display will indicate "5555" and the annunciator
4 Press Range/Auto for more than 1 second to enter the Set Default Security
5 The annunciator secondary display will indicate "SEri" and the annunciator
6 Press
7 Set the code, similar to the last 4 digits of the instrument serial number
8 Press Hold/Max Min to confirm the entry.
9 If the 4 digits entered are correct, the secondary display will indicate "PASS".
Now you can use 1234 as the security code. If you want to enter a new security
code, see
Ensure you record the new security code.
Keysight U1211A, U1212A, and U1213A User's and Service Guide
~A on the clamp meter to enter Calibration Security Code entry mode.
secondary display will indicate "SECU".
Code mode.
primary display will indicate "5555".
or to step each character in the code. Press
each character.
"Changing the instrument Calibration Security Code"
Performance Tests and Calibration 6
or to select
on page 98.
99