To Reset The Calibration Security Code To Its Factory Default - Keysight U1242C Service Manual

1 Calibration Procedures

To reset the calibration security code to its factory default

If you have forgotten the correct calibration security code, you may follow the
steps below to reset the calibration security code to the factory default code,
If you do not have a record (or have lost the record) of the security code, first try
NOTE
the factory default code,
1 Note down the last four digits of the multimeter's serial number (located at the
2 Press both
3 Press
4 Enter the last four digits of the multimeter's serial number.
5 Press
See
40
.
bottom of the rear panel) before you begin.
Log
Hold
normal operation mode to enter unsecured mode.
View
for more than 1 second to enter the Default Security Code
Shift
Esc
(dSC) mode.
MaxMin
– Press or
Hz
respectively.
Vsense
– Press or
Log
to confirm your entry.
Hold
– If the four digits entered are correct, the display will show
The calibration security code is now set to its factory default code,
– If the incorrect security code is entered, an error code will appear briefly,
after which the multimeter will prompt you for the security code again.
– To enter a new security code, see
on page 38. Ensure that you record down the new security code.
Figure 1-7 for the multimeter's display.
.
View
and together for more than 1 second during
Shift
Esc
Auto
to move the cursor to the left or right
Range
to increment or decrement the digit respectively.
"To change the calibration security code"
Keysight U1241C/U1242C Service Guide
will be displayed.
briefly.
.