Pirs Activating A Tamper On Movement Detection

[mattmarkham11]

I have just wired some PIRs to a menvier panel - I am certain the the wiring is correct i.e. red and black from the panel to power on the PIR, blue and yellow from the two alarm contacts within the chosen zone into the N/C contacts on the PIR and the white and green wires from the tamper contacts of the chosen zone on the panel to the '24hr' contacts on the PIR.

When the PIRs detect movement, even with the alarm in open mode, they are triggering a tamper alarm. I have tried disabling the tamper altogether by looping it at the panel. The trigger is still activated. I have swapped the wires i.e tamper into the 24 hr and visa versa with the same result.

The zone is set to 'night' and before any movement is detected the panel shows it as being 'healthy'

Any ideas please??

Matt

[arfur mo]

I have just wired some PIRs to a menvier panel - I am certain the the wiring is correct i.e. red and black from the panel to power on the PIR, blue and yellow from the two alarm contacts within the chosen zone into the N/C contacts on the PIR and the white and green wires from the tamper contacts of the chosen zone on the panel to the '24hr' contacts on the PIR.

When the PIRs detect movement, even with the alarm in open mode, they are triggering a tamper alarm. I have tried disabling the tamper altogether by looping it at the panel. The trigger is still activated. I have swapped the wires i.e tamper into the 24 hr and visa versa with the same result.

The zone is set to 'night' and before any movement is detected the panel shows it as being 'healthy'

Any ideas please??

Matt

hi matt,

being menvier, they usually have resistors in the devices. look in the old detectors and follow whats been done.

the colour code used is not a universal standard to all alarm companies or systems, i suspect you might still have the tamper and alarm loops transposed.

regs

alan

[mattmarkham11]

hi matt,

being menvier, they usually have resistors in the devices. look in the old detectors and follow whats been done.

the colour code used is not a universal standard to all alarm companies or systems, i suspect you might still have the tamper and alarm loops transposed.

regs

alan

I have found out what the problem was!!! ALL 6 PIRs, purchased from B&Q are faulty. A meter test by an alarm engineer showed that the circuits remained open whatever condition. They are boxed as friedland but the instructions are badged Response.

I have today purchased some better quality ones and the system all works fine (what a waste of a few days!).

Thanks for your comments

Matt