Keysight Technologies RP7931A Guide D'utilisation Et D'entretien page 194

5 SCPI Programming Reference
CALibrate:VOLTage[:LEVel] <value>
Calibrates the local voltage programming and measurement. The value selects the range to calibrate.
Parameter
The maximum voltage of the output range.
Calibrates the voltage of the 20 V range: CAL:VOLT 20
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Typical Return
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Keysight RP7900 Series Operating and Service Guide