Service 2
Keysight 53210A/53220A/53230A Assembly Level Service Guide 149
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 160.
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.
5 If you are able to read the error message(s), consult “Error Messages” on
page 174 for what to do after receiving a specific calibration error message.
Summary of auto-calibration procedure:
– Procedure: From the front-panel, the following key strokes initiate the
auto-calibration:
– [Utility] / (Cal AutoCal) / (Auto Cal)
Summary of remote auto-calibration:
– Send command *CAL?. (Note use of the “*”)
– Wait 10 seconds.
– Retrieve query result:
– 0 indicates the auto-calibration PASSED.
– Any value other than 0 indicates auto-calibration FAILED.
– If the retrieved value is non-zero, read error queue: SYSTem:ERRor?
– Read errors until no more errors.
When the auto-calibration completes, a pass/fail message will be displayed.
If the calibration failed, then the current calibration constants remain
unchanged.
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 Keysight
Service Center for information and help on sending the counter to Keysight for
repair and/or calibration.
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