2Service
110 Keysight 53210A/53220A/53230A Assembly Level Service Guide
The Calibration menu allows you to:
– (Secure Code) - View/change the calibration security status of the counter
(Locked/Unlocked), or change/edit the secure password.
– (Lock Cal) - Secures against calibration by entering the displayed security code
while the counter is unlocked.
– (Unlock Cal) - Unlocks the counter for a new calibration by entering the correct
security code while the counter is locked.
– (Perform Cal) - Initiates the counter’s calibration routines, which allow you to:
– (Cal Step) - Select the type of calibration (frequency or voltage):
(Osc) - Input the RF frequency for Channel 1 or Channel 2 frequency
calibration.
(Positive Voltage) - Calibrate, with an operator applied positive reference
voltage, the internal DACs.
(Negative Voltage) - Calibrate, with an operator applied negative
reference voltage, the internal DACs.
(uWave) - Input the calibration frequencies for the 6 GHz or 15 GHz
microwave channel (Options 106 or 115).
(Perform Cal Step) - Initiate the selected calibration step.
– (Measure Temp) - Reads and displays the current temperature and also the
temperature of the instrument during the last Auto-Cal.
– (Auto Cal) - Performs an automatic calibration of the internal circuits of the
counter. Does not require any external inputs. Same as the IEEE-488.2
command *CAL?.
The Auto-Cal command is a subset of the routines executed in Self-Test (*TST).
It is recommended that a counter Self-Test be performed before running any of
the calibration routines. If the Self-Test passes, the calibration(s) may continue.
If the counter fails the Self-Test, calibration should not be attempted until the
counter is repaired and passes Self-Test. Refer to “Troubleshooting the Counter”
on page 160.
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