2

Chapter 2 Service

About the HP 53131A/132A Calibration Menu

 

The HP 53131A/132A Calibration Menu Tree

 

Turn power off, press and hold Scale & Offset key, then press POWER

NOTE

 

key to access this menu. This menu does not exist in early versions

 

(firmware revisions 3317, 3335, and 3402) of the HP 53131A/132A.

 

In the early versions of the Counter, the CAL: menu item resides

 

in the Utility menu, and there is no calibration security

 

capability. See Chapter 6, “Backdating,” in this guide for correct

 

calibration procedures.

 

 

POWER

 

Scale &

 

Offset

 

On / Stby

 

 

 

 

 

 

CAL SECURE

CAL UNSECURE

 

1

CAL: OFFS1?

 

 

CAL: OFFS2?

 

 

CAL: GAIN1?

 

 

CAL: GAIN2?

 

 

CAL: TI QUIK?

 

 

CAL: TI FINE?

 

2

CAL: TIMEBAS?

 

 

 

 

CODE: 0

CAL COUNT?

HELP: CAL?

HELP: SECURE?

HELP: CODE?

1This menu item appears and calibration is permitted only if calibration is unsecure. Enter in the correct code to change calibration to secure.

2Timebase can be automatically calibrated only if the timebase option is installed.

2-8

Assembly-Level Service Guide