User`s guide

56 53220A/53230A User’s Guide
2 53220A/53230A Software Installation and Interface Configuration
Firmware and Driver Updates
Firmware and driver updates (when available) for the 53220A/53230A are
available via the Web. This section contains information for locating and
downloading the updates to your computer, and then installing the updates in
the instrument.
Disabling Calibration Security
Before firmware updates can be installed, the counter’s calibration security
feature must be disabled. This done using the command:
CALibration:SECurity:STATe {OFF|ON}, <code>
CALibration:SECurity:STATe? (query form)
To unsecure the instrument, you must provide the security code in addition to
setting the state to OFF. The security code is set to AT53220A (Agilent
53220A) or AT53230A (Agilent 53230A) when the instrument is shipped from
the factory. Note, however, the security code may have been changed once the
counter has been in use.
After the firmware update is complete, the counter can be re-secured by set-
ting the state to ON and providing the security code. The calibration count is
unaffected when changing the security state or by a firmware update.
The calibration count can be read with the command:
CALibration:COUNt?
NOTE
If the Interactive IO window is used to send the self-test (*TST?) command to the
53220A/53230A, the “timeout” period may have to be increased to allow the
results to be returned. This is done using the ‘Options’ tab on the Interactive IO
window. The 53220A/53230A self-test takes approximately seven seconds to
complete.