4 Features and Functions
198 Keysight 34970A/34972A User’s Guide
Calibration Overview
This section gives a brief introduction to the calibration features of the instrument
and plug-in modules. For a more detailed discussion of the calibration
procedures, see chapter 4 in the 34970A/34972A Service Guide.
Calibration security
This feature allows you to enter a security code to prevent accidental or
unauthorized calibrations of the instrument. When you first receive your
instrument, it is secured. Before you can calibrate the instrument, you must
unsecure it by entering the correct security code.
– The security code is set to either “KT034970” or “KT034972”, depending on the
product number, when the instrument is shipped from the factory. The security
code is stored in non-volatile memory on the mainframe, 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.
If you forget your security code, you can disable the security feature by adding a
jumper inside the instrument. See the 34970A/34972A Service Guide for more
information.
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