Calibration and Troubleshooting 
 
7-18  M370430-01  Rev B 
Isolated Voltage Programming of Voltage Calibration 
Important: For maximum accuracy at a specific APG level, follow the 
calibration procedure again but use the intended operating voltage level in step 
3. 
To calibrate the isolated voltage programming of voltage: 
1.  Disconnect the load and connect the voltmeter to the output. 
2.  Connect the input voltage source to the Isolated connector 
(J3.3 and J3.6). 
3.  Set the Voltage APG level to 4 V. The SCPI command is: 
SYST:COMM:APR:LEV   4 
4.  Set the input source voltage to 4.000 V. 
5.  Set the input source as Voltage Isolated for Voltage. The 
SCPI command is: 
SYST:REM:SOUR AVOL 
6.  Turn the main output to On by pressing the OUTPUT 
ENABLE Main button on the front panel or send the 
command: 
:OUTP  ON 
The OUTPUT ENABLE Main button will illuminate. 
7.  Enter the interactive calibration mode by sending the SCPI 
command: 
CAL :OUTP:ANAL:ISOL 
8.  Press on the terminal keys - or + to reduce or increase the 
main output voltage value. Adjust the main output voltage to 
100%. 
9.  Press any key other than the + or - keys to exit from 
interactive calibration mode.