I don’t see any light blinking when I press the button on the PV Analyzer. How do I know if it is working?

If the PV Analyzer measurement unit is off or is paused, the power button LED will not be lit.   If the power button is pressed, the LED will blink for a few seconds while the measurement unit establishes the wireless communication link with the PC. Once connected, the LED will stay lit, and the ?Measure Now? button in the software will turn green. Refer to the User’s Guide for additional details.