To Reset The Calibration Security Code To Its Factory Default; Figure 1-7 Resetting The Calibration Security Code - Agilent Technologies U1270 Series Service Manual

1 Calibration Procedures
Unsecuring the Instrument for Calibration

To reset the calibration security code to its factory default

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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 (1234).
If you do not have a record (or have lost the record) of the security code,
first try the factory default code, "1234".
1 Before you begin, note down the last four digits of the
instrument's serial number (located at the bottom of the
rear panel).
2 Power- on the instrument and press the
keys simultaneously for more than 1 second.
The calibration security code entry is shown on the
display.
3 Press
(for U1273A/U1273AX) or
U1271A/U1272A) for more than 1 second.

Figure 1-7 Resetting the calibration security code

4 Set the code to the same as the last four digits of the
instrument's serial number.
• Press or
to the left.
Dual
• Press or
Exit
5 Press
to confirm the entry.
to move the cursor to the right or
to increment or decrement the digit.
Setup
and
(for
U1270 Series Service Guide