Proper installation is critical for the sensor to provide accurate readings without interference from artificial light sources.
I can provide specific or step-by-step testing based on those details. Merlin Gerin Multi 9 Ic 2000 P Manual
This guide serves as a comprehensive manual for the installation, programming, and troubleshooting of the Multi 9 IC 2000 P. Technical Specifications and Overview Proper installation is critical for the sensor to
Verify the Red LED turns on when you cover the sensor manually with your hand or a dark cloth (wait 80 seconds for the delay). Merlin Gerin Multi 9 Ic 2000 P Manual