Service
2
Keysight 53210A/53220A/53230A Assembly Level Service Guide
117
To change to a new security code
1
Unlock the counter by using the procedure described in the previous section
titled “To Unlock The Counter For Calibration”.
2
Enter a new security code and then press the
Lock Cal
softkey.
– The data entry area and
Secure Code
areas change to all dash ( -- ) characters
when the code is accepted.
– The
Cal Count
is incremented and the
Lock Cal
softkey changes to the
Unlock Cal
softkey.
CAUTION
IMPORTANT! Be sure to write down the new calibration security code you
enter before you lock the counter. Once the counter is locked, there is no
way on the counter to tell what the code is. However, there is a procedure
that can be used to reset the secure code to null so that a new code can be
entered. Refer to
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