► To verify proper power optimizers connection:
1 Measure the voltage of each string individually before connecting it to the other strings or to the
inverter. Verify correct polarity by measuring the string polarity with a voltmeter. Use a voltmeter
with at least 0.1V measurement accuracy.
2 For troubleshooting power optimizers operation problems, refer to Power Optimizers
Troubleshooting on page 57.
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