Chapter 2 Service
About the HP 53181A Calibration Menu
2-30
Assembly-Level Service Guide
2
To Change to New the 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.
Summary of Contents for 53131A
Page 1: ...Assembly Level Service Guide HP 53131A 132A 181A 225 MHz Counter ...
Page 2: ......
Page 14: ...Contents xii Assembly Level Service Guide ...
Page 22: ...Preface xx Assembly Level Service Guide ...
Page 23: ...1 Performance Tests Verifying Specifications ...
Page 97: ...2 Service ...
Page 149: ...3 Replacing Assemblies Disassembly and Reassembly ...
Page 173: ...4 Retrofitting Options ...
Page 191: ...5 Replaceable Parts ...
Page 201: ...6 Backdating Manual Changes ...
Page 218: ...Chapter 6 Backdating Backdating Specifications 6 18 Assembly Level Service Guide 6 ...
Page 219: ...7 HP 53131A 132A Specifications ...
Page 235: ...8 HP 53181A Specifications ...
Page 246: ...Chapter 8 HP 53181A Specifications General Information 8 12 Assembly Level Service Guide 8 ...
Page 252: ......
Page 254: ... Manual Part Number 53131 90039 Printed in U S A MARCH 1999 ...