HP 53131A, Operating Manual

Page: 148 / 196

Chapter 2 Operating Your Universal Counter
Using the Calibration Menu
2-72 Operating Guide
2
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.
To View the Calibration Count
1 Press and hold Scale & Offset key, then cycle POWER key.
2 Press Scale & Offset key until CAL COUNT? is displayed.
3 Press any one of the entry keys (arrow, +/
−
, Enter) to have a scrolling
message appear, indicating what the calibration count is.
Your Counter was calibrated before it left the factory. When you receive
your Counter, read the calibration count to determine its initial value.
To Get Help With the Calibration Menu
1 Press and hold Scale & Offset key, then cycle POWER key.
2 Press Scale & Offset key until HELP: CAL? is displayed.
3 Press any one of the arrow keys until your help choice (that is,
HELP: CAL? , HELP: SECURE? , HELP: CODE? ) is displayed.
4 Press Enter key to display the help information.