scrimshanker Posted August 3, 2018 Share Posted August 3, 2018 Hi All I've come across an issue at a site where its been fine for over a year and now im getting spurious alarm signals between 12am and 3 am from various long rang detectors. It started with just one detector so it was changed but now its multiple including the changed one. Its a large builders merchant with a large warehouse, there isn't any sign of animal life. The only thing is the warehouse is rather hot and I wondered whether the cooling of the building would effect these particular detectors. The thing is now isn't as hot as it was so i'm a little stumped. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted August 3, 2018 Share Posted August 3, 2018 power supply issue? Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
The Arab Posted August 4, 2018 Share Posted August 4, 2018 Are they mounted on a solid base or outer cladding ? 1 Quote Trade Member Link to comment Share on other sites More sharing options...
scrimshanker Posted August 4, 2018 Author Share Posted August 4, 2018 Hi Not checked the volts at each detector but they aren't all feed by the same Rio As for mounting, they are all mounted on the inside of the exterior metal cladding. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted August 4, 2018 Share Posted August 4, 2018 are all the rios that these detectors are powered from on the same psu? Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
scrimshanker Posted August 5, 2018 Author Share Posted August 5, 2018 13 hours ago, james.wilson said: are all the rios that these detectors are powered from on the same psu? No 2 separate power Rio's Quote Link to comment Share on other sites More sharing options...
sixwheeledbeast Posted August 6, 2018 Share Posted August 6, 2018 On 04/08/2018 at 19:08, scrimshanker said: they are all mounted on the inside of the exterior metal cladding. On 04/08/2018 at 17:35, The Arab said: Are they mounted on a solid base or outer cladding ? Likely the cladding is moving with heat expansion. Microwave can only help minimise false alarms if device is fixed to a solid surface. Quote Link to comment Share on other sites More sharing options...
scrimshanker Posted August 6, 2018 Author Share Posted August 6, 2018 Normally I'd agree but it hasn't done it during the really hot spell in June! Although it is far more humid now. It has to be heat related, I was wondering whether anyone has had issues with these detectors before due to heat? Quote Link to comment Share on other sites More sharing options...
Nova-Security Posted August 6, 2018 Share Posted August 6, 2018 are they going off or going high resistance Quote www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment Share on other sites More sharing options...
al-yeti Posted August 6, 2018 Share Posted August 6, 2018 51 minutes ago, Nova-Security said: are they going off or going high resistance There's no sign of anything technical yet..... HousebashersRus Quote Link to comment Share on other sites More sharing options...
PeterJames Posted August 6, 2018 Share Posted August 6, 2018 Is the building expanding and contracting? if the detector is moving it will think that an elephant has broken in Quote Link to comment Share on other sites More sharing options...
Ashton Posted August 8, 2018 Share Posted August 8, 2018 I once heard of people having issues with these going into tamper years ago apparently caused by certain beacons on forklifts etc but would imagine that fault has long been resolved Quote Link to comment Share on other sites More sharing options...
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