
Chapter 2 Service
The Agilent 53210A/53220A/53230A Calibration Procedures
138 Assembly-Level Service Guide
2Press Auto Cal.
• Display stops updating until auto-calibration is completed (several
seconds).
• If the calibration is successful, the screen displays “Auto Calibration
succeeded”.
– Cal Count is not updated, but the calibration constants ARE
updated.
• If any one of the calibration routines fails, the screen displays “Auto
Calibration failed”.
NOTE When the auto-calibration completes, a pass/fail message will be
displayed. If the calibration failed, then the current calibration
constants remain unchanged.
3 If the auto-calibration fails (“Auto-calibration failed”), first verify
any inputs connected to the counter are turned OFF. Then, refer
to the troubleshooting procedures starting on page 150 .
4 To check for error messages, refer to the “
Summary of Remote
Auto-Calibration
” below for information on how to read the
error message(s) from a remote computer.
NOTE If you do not have a remote computer available (requires a LAN,
USB or GPIB interface) or are not proficient at programming,
contact the nearest Agilent Service Center for information and
help on sending the counter to Agilent for repair and/or
calibration.
5 If you are able to read the error message(s), consult “Error
Messages” starting on page 163 for what to do after receiving a
specific calibration error message.
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