HP 53131A Operating Guide

Chapter 2 Operating Your Universal Counter
Using the Calibration Menu
2-68 Operating Guide
2
• view the calibration count, which indicates the number of times that
the Counter has been calibrated (CAL COUNT?). The calibration
count increments up to a maximum of 32,767 after which it wraps
around to 1. A calibration count of 0 indicates that the Counter is
completely uncalibrated. (The calibration count is unaffected by
interpolator calibration.)
• get Help (HELP:) with any of the following:
– how to calibrate (CAL?),
– how to secure (SECURE?), and
– how to change the code (CODE?)
NOTE A good precaution is to use an HP-IB program (see the programming
example titled “To Read and Store Calibration Data” in Chapter 3 of the
Programming Guide) to read and store the calibration factors prior to
initiating any calibration.
To View the Calibration Menu and Security Status
The Calibration menu is accessed by holding the Scale & Offset key and
cycling the POWER key. The first item in the Calibration menu is a
message indicating the calibration security status:
CAL SECURE or
CAL UNSECURE .
To Unsecure for Calibration
1 Press and hold Scale & Offset key, then cycle POWER key.
CAL SECURE is displayed.
If
CAL UNSECURE is displayed, then the Counter is already unsecured
for calibration, and the remaining steps are not applicable.
2 Press Scale & Offset key until
CODE: is displayed.
3 Press the appropriate arrow keys to enter the security code, then press
Enter key.
CAL UNSECURE is displayed.

HP 53131A Specifications

General

Brand	HP
Model	53131A
Category	Cash Counter
Language	English