VXi VT1422A 사용자 설명서

For each channel (each must be tested separately), enable internal shunt 
calibration by sending the OUTP:SHUNt ON,(@<channel>) command. 
Note: this turns off the shunt on the previous channel. 
Send the MEAS:VOLT:UNStrained? (@<channel>) query to the 
VT1422A. The expected return value is ~0.211 V on each channel.

Calibration is performed via the VT1422A CAL:REMote? command. The 
VT1422A will automatically calibrate the specified VT1529A/B using the 
Remote Calibration signal from the VT1422A. This signal is calibrated via 
the Adjustment Procedure described in Chapter 3 of the VT1415A and 
VT1419A Service Manual.

No other calibration procedure is needed.