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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).
If you do not have a record (or have lost the record) or the security code, first try
NOTE
the factory default code, 1234, through the front panel. There is always the
possibility that the security code has never been changed at all.
1 Record the last 4 digits of the instrument serial number.
2 Turn the rotary switch to the
3 Press
4 The secondary display will indicate "CSC:I 5555" as a cue for you to enter the
5 Without entering the security code, press
6 Press
7 Press
8 If the number entered is the correct last 4 digits of the serial number, the
Now the security code has been reset to the factory default, 1234. If you wish to
change the security code, refer to the section
Code"
Please refer to
Keysight U1253B User's and Service Guide
and
entry mode.
security code. However, since you do not have the security code, proceed to
the next step.
enter Set Default Security Code mode. The secondary display will indicate
"SCD:I 5555".
or
to start and choose which digit to edit, and press
edit the value. Set these to be the same as the last 4 digits of the instrument
serial number.
(Save) to confirm the entry.
upper left corner of the secondary display will momentarily show "PASS".
on page 183. Make sure you record the new security code.
Figure 6-6
Performance Tests and Calibration
position.
simultaneously to enter the Calibration Security Code
on page 186.
for more than 1 second to
"Changing Calibration Security
6
or
to
185
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