Keysight N1911A Programming Manual page 217

Syntax
Query Example
CAL1:ALL?
Error Messages
– If the calibration was not carried out successfully the error –231, "Data
– If zeroing was not carried out successfully the error –231, "Data Questionable;
– If there is no sensor connected, the error –241, "Hardware Missing" occurs.
N1911A/1912A P-Series Power Meters Programming Guide
CAL
1
2
Questionable; CAL ERROR" occurs. If you are using an N1912A the error
message specifies which channel failed calibration.
ZERO ERROR" occurs. If you are using an N1912A the error message specifies
which channel failed calibration.
?
:ALL
This command causes the power meter to
perform a calibration sequence on Channel A
and return a result.
CALibration Subsystem 4
217