46 U1241B/U1242B User’s and Service Guide
5 Performance Tests and Calibration
Calibration Security
The calibration security code prevents accidental or unauthorized
adjustments to the multimeter. The multimeter is secured when the
multimeter is shipped from factory. Before performing any adjustment to
the multimeter, you are required to unsecure the multimeter by entering
the correct security code (see Unsecuring the Multimeter for Calibration).
The security code may contain up to 4 numeric characters.
Unsecuring the Multimeter for Calibration
Before performing adjustment to the multimeter, you are required to
unsecure the multimeter by entering the correct security code. The
security code is set to 1234 when the multimeter is shipped from the
factory. The security code is stored in non- volatile memory, and does not
change when power is off.
Unsecuring the Multimeter from the Front Panel
1 Turn the rotary switch to .
2 Press and simultaneously to enter the Calibration
Security Code entry mode. The primary display shows 5555 and the
secondary display shows SEU.
3 Press or to step each character in the code. Press
or to change the value of the selected character.
4 Press (Save) when done.
5 If the correct security code is entered, the secondary display will show
“PAS”. If an invalid code is entered, the multimeter will shows error
code “E02” on the secondary display for approximately 3 seconds and
return to the Calibration Security entry mode.
You can unsecure and change the security code from the multimeter front panel. If you
forget your security code, see Unsecuring the Multimeter Without the Security Code.
To Next Page
Loading...
Need help?
General
