NOTE

Chapter 1 Before You Start ...

Programming Guide Contents

Differences Between Prior and Current Revisions of the HP 53131A/132A

If you have an HP 53131A containing one of the prior firmware revisions (3317, 3335, or 3402), read the subsection below titled “HP 53131A Containing Firmware Revisions (3317, 3335, or 3402) ” to get an overview of the differences between the earlier firmware revisions and current firmware revision.

If you have an HP 53132A with a serial number prefix below 3646, read the subsection titled “HP 53132A Time Interval Delay Arming ” on page 1-5.

Note that throughout the guide, differences between the earlier and current firmware revisions are noted where applicable.

HP 53131A Containing Firmware Revisions (3317, 3335, or 3402)

There are four main areas that differ:

Calibrations

Measurements

Statistics

HP-IB Commands

Calibrations

If your Counter contains other than the current firmware revision, the following calibration features are different:

The calibration functions are in the Utility menu instead of the Calibration menu, which is accessed by pressing and holding the front-panel Utility key and then cycling POWER key.

Calibrations are not protected by a security code.

A calibration count does not exist to aid in monitoring the number of calibrations performed.

A more accurate Time Interval calibration (FINE TI) is not available.

See the section titled “Using the Calibration Menu” in Chapter 2 of the HP 53131A/132A Operating Guidefor details.

Programming Guide

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HP 132A manual HP 53131A Containing Firmware Revisions 3317, 3335, or, Calibrations, Programming Guide Contents