34410A/11A/L4411A Service Guide 55
Quick Start 2
To Secure for Calibration
This feature allows you to enter a security code to prevent accidental or
unauthorized adjustments of the instrument. When you first receive your
instrument, it is secured. Before you can adjust the instrument, you must
unsecure it by entering the correct security code.
The security code is set to AT34410 (AT34411 for the Agilent 34411A)
when the instrument is shipped from the factory. The security code is
stored in non–volatile memory, and does not change when power has been
off, after a Factory Reset (*RST command), or after an Instrument Preset
(SYSTem:PRESet command).
The security code may contain up to 12 alphanumeric characters. The first
character must be a letter, but the remaining characters can be letters,
numbers, or an underscore ( _ ). You do not have to use all 12 characters
but the first character must always be a letter.
1 Press .
2 Select CALIBRATION from UTILITY MENU.
3 Select SECURE from CALIBRATION.
4 The currently set security code is shown. Use or to select each
character in the code. Change the characters by pressing or to
cycle through all the possible display characters. The full alphabet is
available as well as the digits 0 through 9. The first character must be
a letter.
5 Press when done.
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