Technical data

1 Calibration Procedures
Unsecuring the Instrument for Calibration
38 U1270 Series Service Guide
Unsecuring the Instrument for Calibration
Before you can adjust the instrument, you must unsecure it
by entering the correct security code.
The default security code is set to 1234.
To unsecure the instrument from the front panel
1 Power- on the instrument and press the and
keys simultaneously for more than 1 second.
The calibration security code entry is shown on the
display.
Figure 1-5 Unsecuring the instrument
2 Key in the default security code if you are unsecuring
your instrument for the first time.
• Press or to move the cursor to the right or
to the left.
• Press or to increment or decrement the digit.
3 Press when you are done.
NOTE
If you forget your security code, see “To reset the calibration security code
to its factory default” on page 40.
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