ILLUMRA wireless motion sensors use PIR (Passive Infra-Red) sensing technology which monitors the space for a moving heat source in ambient environment that is cooler than the heat source. Typically the moving heat source would be a human (98ºF) in a room (70ºF) and when the human moves, the sensor detects a change and transmits an occupied signal. False triggers can be cause by air currents any other heat source that can move or fluctuate.
In one example, there are 2 wireless motion sensors in a server room linked to 1 receiver and the lights are never turning off so there seem to be false triggers from the sensors. The troubleshooting steps below can help determine the best resolution.
Troubleshooting steps:
- Take the sensors down and put them in a box with no motion and confirm the lights turn off (this confirms the commissioning and operation is correct)
- Because either sensor will trigger the lights to stay on if they are sensing motion, install just one sensor (keep the 2nd in a box) and confimr the lights turn off with no motion
- Swap sensors, put the other in a box and the one from the box on the ceiling. It is important to test both sensors alone to determine if only 1 is causing the issue or if they are both detecting motion with the air currents
- Depending on the results above, try adjusting the "sensitivity switch" on the back of the sensor for any sensors that are having false triggers
- If #4 doesn't help, relocate the sensors to a place where they are not subject to airflow and/or rapidly fluctuating temperatures and test the new locations using steps 2 & 3 above.
Hopefully that helps. Let us know how we can be of further assistance.