Keysight Technologies P Series Programming Manual page 228

4 CALibration Subsystem
CALibration[1]|2[:ALL]?
This query is identical to CALibration[1]|2[:ALL], however, unlike the
NOTE
command, it provides a response to indicate whether the calibration has been
successful or not.
This query causes the power meter to perform a calibration sequence on the
specified channel. The query assumes that the power sensor is connected to the
POWER REF output. The calibration sequence consists of:
1 Zeroing the power meter (CALibration:ZERO:AUTO ONCE), and
2 Calibrating the power meter (CALibration:AUTO ONCE).
When the calibration sequence is completed, 0 or 1 is entered into the output
buffer to indicate if the sequence was successful. If the result is:
– 0, the calibration has passed
– 1, the calibration has failed
For the 8480 power sensors the reference calibration factor used during this
calibration can be derived from either an active sensor calibration table or the
value entered using CALibration:RCFactor. The actual value used is the one
which was most recently set. That is, a value entered using
CALibration:RCFactor is overridden if a sensor calibration table is subsequently
selected and enabled. Conversely, CALibration:RCFactor overrides any
reference calibration factor previously set from a sensor calibration table. To
determine the currently set reference calibration factor use
CALibration:RCFactor?.
The E-Series power sensors have their sensor calibration tables stored in EEPROM
which means that the reference calibration factor is automatically downloaded by
the power meter.
228 Keysight N8262A Programming Guide