Keysight Technologies U1253B - Page 186

6 Performance Tests and Calibration
186 Keysight U1253B User’s and Service Guide
Figure 6-6 Resetting security code to factory default
Press
to select digit
Press
to edit selected digit
or
or
Without entering code,
Last 4 digit of
Last 4 digit of
serial number
serial number
Press Save when done
To exit without resetting the code
press View > 1 second
press View > 1 second
is correct
is incorrect
Error message appears for 3 sec.
The word “PASS” appears
for 3 seconds