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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 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.
If you forget your security code, you can disable the security feature by
adding a jumper inside the instrument. See the 34970A Service Guide
for more information.
• The security code is set to “HP034970” 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.
4
Chapter 4 Features and Functions
Calibration Overview
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