1
Calibration Procedures
38
Keysight U1281A/U1282A Service Guide
Unsecuring the Multimeter for Calibration
Before you can adjust the multimeter, you must unsecure it by entering the
correct security code.
The default security code is set to
.
To unsecure the multimeter
1
Press
and
together for more than 1 second during normal
operation mode to enter unsecured mode.
The calibration security code entry is shown on the display.
Figure 1-4
Calibration security code entry display
2
Key in your security code.
– Press or on
to move the cursor to the left or to the right.
– Press
or
to increment or decrement the digit.
NOTE
If you forget your security code, see
“To reset the calibration security code to its
Hz
Save
Esc
Shift
Hold
Vsense
Содержание U1281A
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