Calibration and Troubleshooting

Non-isolated Current Monitoring Calibration

Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 8.

To calibrate the non-isolated current monitoring:

1.Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.

2.Connect the voltmeter to the non-isolated current monitoring output lines (J1.12 - J1.7).

3.Set the Current APG level to 4 V. Send the SCPI command:

SYST:COMM:APR:LEV:CURR 4

4.Set the input source as Local.

5.The SCPI command is:

SYST:REM:SOUR:CURR LOC

6. Set the main output voltage to 100% by sending the command SOUR:VOLT <ModelVolt> or use the rotary adjust/Enter control.

7.Turn the main output 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.

 

8.

Enter interactive calibration mode by sending SCPI command:

 

 

CAL:MON:CURR

 

9.

Press on the terminal keys – or + to reduce or increase the monitoring

 

 

value. Adjust the monitoring value displayed on the voltmeter that

6

 

was set up in Step 1 to read as close as possible to 4.000 V.

10.

Press any key other than the + or – keys to exit from interactive

 

calibration mode.

M370078-01

6-11

Page 209
Image 209
Xantrex Technology XG 850 Non-isolated Current Monitoring Calibration, To calibrate the non-isolated current monitoring