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Passive Infrared Detector (PIR) Issue

Hi folks.  I have a 6000 Series PIR originally manufactured by GE security.  The sensor is wired to a OMRON MK2P-S 8 pin relay.  The relay controls an audio alarm. Everything worked fine for a while but now it no longer triggers the relay, despite the LED indicating it should.  I can physically disconnect the COM connection and it will force the relay to trip and perform the desired alarm message.  The voltage to the PIR is 13.5v (specifications indicate 10v-16v is the acceptable range).  I have set the jumper for 2 and 3 pulse with no difference in behavior.  Any troubleshooting ideas?  Thanks in advance.

iceng5 years ago
Sounds like a low battery