Performance Tests and Calibration 6
U1253B User’s and Service Guide 153
Changing Calibration Security Code
From front panel
1 After unsecuring the instrument, press for more
than 1 second to enter Calibration Security Code setting
mode.
2 The existing code will be shown on the secondary display,
for example, “CSC:C 1234”, where the character “C”
signifies “change”.
3 Press or to start and choose which digit to edit,
and press or to edit the value. (To exit without
changing the code, press for more than 1 second.)
4 Press (Save) to save the new security code.
5 If the new calibration security code has been successfully
stored, the upper left corner of the secondary display will
momentarily show the word “PASS”.
Please refer to Figure 6- 5 on page 154.