Service 2
Keysight 53210A/53220A/53230A Assembly Level Service Guide 147
– Connect calibration source to channel 2 (53210A) or channel 3 (53220A or
53230A) at 300 MHz, -21 dBm for Option 115.
– Send command to calibrate: “CALibration:LEVel3? 300E6, -21”.
–Use “CALibration:LEVel2? 300E6, -21” for 53210A.
– Retrieve query result:
– 0 indicates the calibration PASSED.
– Any value other than 0 indicates calibration FAILED.
– If non-zero value, read error que: SYSTem:ERRor?
– Read errors until no more errors.
– Repeat as necessary for all values in Table 2-3.
– Consult the “Error Messages” starting on page 174 for what to do after
receiving a specific calibration error message.
This concludes the Option 115 calibration procedure.
Internal auto-calibration
No external inputs are required for running auto-calibration. Auto-calibration runs
a select series of internal calibration routines using internal standards and stores
appropriate calibration constants for use in subsequent measurements. This
operation fine-tunes the current calibration based on the internal temperature of
the counter. If the auto-calibration completes normally, the existing constants are
replaced by the new values obtained. If any one of the internal routines fails, all
existing constants remain the same.
It is not necessary to unsecure the counter for auto-calibration. Auto-Cal does not
increase the Cal Count. Auto-Cal is also a subset of Self-Test, so every time you
perform a counter Self-Test you also perform an Auto-Cal.
It is not necessary to disconnect signal input cabling when performing
auto-calibration, but all input signals should be turned OFF.
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