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Unsecuring the Instrument for Calibration
N O T E
To unsecure the instrument from the front panel
U1271A/U1272A Service Guide
Before you can adjust the instrument, you must unsecure it
by entering the correct security code.
The default security code is set to 1234.
If you forget your security code, see
to its factory default"
on page 21.
1 Power- on the multimeter and press the
keys simultaneously for more that 1 second to enter the
calibration security code entry mode.
2
is shown in the secondary display while the
security code is shown in the primary display.
Figure 1-4 SECUr display
3 Press
or
to the left.
4 Press
Dual
or
Exit
Setup
5 Press
when you are done.
If the correct security code is entered,
the secondary display briefly, after which the instrument
will enter the adjustment mode.
Calibration Procedures
Unsecuring the Instrument for Calibration
"To reset the calibration security code
to move the cursor to the right or
to increment or decrement the digit.
1
and
is shown in
19
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