Calibration Security - Agilent Technologies 34405A User's And Service Manual

4 Performance Tests and Calibration

Calibration Security

The calibration security code prevents accidental or unauthorized
adjustments to the instrument. When you first receive your instrument, it
is secured. Before you can adjust the instrument, you must unsecure it by
entering the correct security code (see
Calibration"
The security code is set to AT34405 when the instrument is shipped from
the factory. The security code is stored in non- volatile memory, and does
not change when power is turned off or after a Factory Reset (*RST
command) or after an Instrument Preset (SYSTem:PRESet command).
You can unsecure the instrument from the front panel, but you cannot enter a new security
N O T E
code or change the security code from the front panel. The security code can only be
changed from the remote interface after the instrument has been unsecured. Refer to the
CAL:SEC:CODE command in the 34405A Programmer's Reference Help File for more details.
The security code may contain up to 12 alphanumeric characters. The first
character must be a letter. The remaining characters can be letters or
numbers. You do not have to use all 12 characters.
82
on page 83).
"Unsecuring the Instrument for
34405A User's and Service Guide