3 Front-Panel Overview
52 Keysight 34970A/34972A Service Guide
To Unsecure for Calibration
You can unsecure the instrument either from the front panel or over the remote
interface. The instrument is secured when shipped from the factory and the
security code is set to “HP034970” or “AT034972”, depending on the product
number.
– Once you enter a security code, that code must be used for both front-panel
and remote operation. For example if you secure the instrument from the front
panel, you must use that same code to unsecure it from the remote interface.
– Press to enter the Utility menu.
When you first enter the Utility menu, the calibration entries toggle between CAL
SECURED and UNSECURE CAL. To unsecure the instrument, select
UNSECURE CAL and press . After entering the correct security code, press
again. When you return to the menu, you will see new choices CAL
UNSECURED and SECURE CAL.
If you enter the wrong secure code, NO MATCH is displayed and a new choice,
EXIT, is shown.
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