Agilent Technologies U1231A Service Guide

Calibration Procedures 1
Unsecuring the Instrument for Calibration
U1231A/U1232A/U1233A Service Guide 13
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 multimeter and press the and
keys simultaneously for more that 1 second to enter the
calibration security code entry mode.
2SECU is shown on the display briefly, followed by the
calibration security code.
Figure 1-2 SECU display
Figure 1-3 Calibration security code display
NOTE
• If you forget your security code, see “To reset the calibration security
code to its factory default” on page 16.
• The auto power-off (APO) feature will be disabled after you unsecure
the instrument.
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Agilent Technologies U1231A Specifications

General

Brand	Agilent Technologies
Model	U1231A
Category	Multimeter
Language	English