Xantrex XTR 33-25, Operating Manual

Page: 215 / 286

Calibration and Troubleshooting
M370046-01 6-17
6
Isolated Current Monitoring Calibration
To calibrate the 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 Isolated monitoring output lines (J3.10
and J3.6).
3. Set the current APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source to local for voltage analog programming. the
SCPI command is:
SYST:REM:SOUR:CURR LOC
5. Set the main output voltage to 100% by sending the command:
SOUR:VOLT <ModelVolt>
or use the rotary knob/Enter button.
6. Turn the main output to On by pressing the OUTPUT ON/OFF button
on the front panel or send the command:
:OUTP ON
The OUTPUT ON/OFF button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:MON:CURR:ISOL
8. Press the terminal keys – or + to reduce or increase the monitoring
value. Adjust the monitoring value displayed on the voltmeter that
was set up in Step 1 to read as close as possible to 4.000 V.
9. Press any key other than the + or – keys to exit from interactive
calibration mode.
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