Hi,
Some of my house PIR's switch falsely, in an apparently random way.
Others trigger correctly only when light levels are low and movement is detected.
For example the hall way cupboard light cannot be triggered by the PIR in the ceiling of the cupboard when the door is closed as there is no window and when the door is closed no movement can be detected. So triggering should not occur.
And yet, often I come into the house and can see from under the door of the hallway cupboard the light is on! False triggering.
In the hall way cupboard is the Gigabit switch for distributing CAT6 internet around the house, a rasp-pi, and the TV amplifier for distributing the TV signal around the house via coax. Some of these devices may generate a small amount of consistent heat and have flickering leds. I don't think this would trigger the PIR though ... not 100 % sure.
Rather I feel there many be some electrical noise on the PIR? though I have no idea where this could come from.
The bathroom lights are connected to PIR's and work perfectly. Never false triggering.
The hallway lights are connected to PIR's and generally work perfectly, though there is occasional false triggering.
The kitchen, galley and breakfast room are all on PIR's and false switching does occur more than occasionally.
There do appear to be at least 3 lighting circuits on the mains domestic RCD box in the garage.
Anyone any ideas.
Some of my house PIR's switch falsely, in an apparently random way.
Others trigger correctly only when light levels are low and movement is detected.
For example the hall way cupboard light cannot be triggered by the PIR in the ceiling of the cupboard when the door is closed as there is no window and when the door is closed no movement can be detected. So triggering should not occur.
And yet, often I come into the house and can see from under the door of the hallway cupboard the light is on! False triggering.
In the hall way cupboard is the Gigabit switch for distributing CAT6 internet around the house, a rasp-pi, and the TV amplifier for distributing the TV signal around the house via coax. Some of these devices may generate a small amount of consistent heat and have flickering leds. I don't think this would trigger the PIR though ... not 100 % sure.
Rather I feel there many be some electrical noise on the PIR? though I have no idea where this could come from.
The bathroom lights are connected to PIR's and work perfectly. Never false triggering.
The hallway lights are connected to PIR's and generally work perfectly, though there is occasional false triggering.
The kitchen, galley and breakfast room are all on PIR's and false switching does occur more than occasionally.
There do appear to be at least 3 lighting circuits on the mains domestic RCD box in the garage.
Anyone any ideas.