Xantrex Technology XTR 850 Watt - Manual (Page 204)

Calibration and Troubleshooting
6-16 975-0200-01-01
Isolated Voltage Programming of Current Calibration
To calibrate the isolated voltage programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure
the voltage across the shunt.
2. Connect the input voltage source to the Isolated connector (J3.4 -
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 voltage to 4.000 V.
5. Set the input source as Voltage Isolated for Current. The SCPI
command is:
SYST:REM:SOUR:CURR:ISOL AVOL
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:OUTP:ANAL:CURR:ISOL
8. Press the terminal keys – or + to reduce or increase the main output
current value. Adjust the main output current to 100%.
9. Press any key other than the + or – keys to exit from the interactive
calibration mode.
Isolated Resistive Programming of Current Calibration
To calibrate the isolated resistive programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure
the voltage across the shunt.
2. Connect the 4.000 k
Ω resistor to the isolated connector. One terminal
to resistive programming of current (J3.7), and voltage programming
of current (J3.3), and the other to common (J3.2).
3. Set the Resistive APG level to 4 k
Ω. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source as Resistive Isolated for Current Programming.
The SCPI command is: