To Initiate The Calibration Routines - HP 53132A Assembly And Service Manual

Chapter 2 Service
About the HP 53181A Calibration Menu

To Initiate the Calibration Routines

1 Press and hold Scale & Offset key, then cycle POWER key.
2 Unsecure for calibration by performing the preceding procedure.
3 Press Scale & Offset key until CAL: OFFS1? is displayed.
4 Press any one of the arrow keys until your calibration choice
(that is, CAL: GAIN 1? , or CAL: TIMEBAS? ) is displayed.
Note that the timebase choice (CAL: TIMEBAS?) only appears when the
Timebase Option is installed.
5 Press Enter key.
A scrolling message is displayed.
6 Follow the instructions in the scrolling message, and press Enter
key to start the calibration.
The Counter momentarily displays CALIBRATING , and then displays the
calibration test name and pass/fail status (for example, OFFS 1 PASS ).
When the calibration completes, a pass/fail message will be displayed.
If the calibration failed, then the calibration factors remain unchanged.
To Secure Against Calibration
1 Press and hold Scale & Offset key, then cycle POWER key.
CAL UNSECURE is displayed. If CAL SECURE is displayed, then the
Counter is already secured against 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 SECURE is displayed.
Assembly-Level Service Guide 2-29