Instruction manual

Chapter 2 Service
About the Agilent 53131A/132A Calibration Menu
Assembly-Level Service Guide 2-13
2
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.
To Change to a New Security Code
1 Press and hold Scale & Offset key, then cycle POWER key.
2 Unsecure for calibration by the using the procedure described in the section
titled “To Unsecure for Calibration.”
3 Press Scale & Offset key until CODE: is displayed.
4 Press the appropriate arrow keys to enter the new or customized security code,
then press Enter key.
A scrolling message will appear, indicating what the new code is. For example, the
Counter displays the NEW CODE IS 5 if you entered “5” as the new code.