Rubble1952 Posted January 24, 2017 Share Posted January 24, 2017 Does anyone else have issues when using G3 roller door contacts. We have issues on two sites where we have such contacts. We have 2 per door. They randomly go fault, mask and open circuit. Fitted to a galaxy and wired and mounted as per instructions. Any ideas? Quote Link to comment Share on other sites More sharing options...
james.wilson Posted January 24, 2017 Share Posted January 24, 2017 which ones? 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...
Rubble1952 Posted January 24, 2017 Author Share Posted January 24, 2017 Cqr the ones with the alignment tab. Quote Link to comment Share on other sites More sharing options...
ElecTech Posted January 24, 2017 Share Posted January 24, 2017 (edited) Funnily enough yes... we fitted two on a roller shutter over a week ago, this weekend we had a call out - tamper then high res within the same minute. Showing closed ever since. We have put it on soak test for now... Strange - although I don't like the look of the tamper switch within elmdenes G3 junction box. Looks flimsy and unreliable IMO. Edited January 24, 2017 by ElecTech Changed manufacturer on JB Quote Link to comment Share on other sites More sharing options...
ElecTech Posted January 24, 2017 Share Posted January 24, 2017 And was on a galaxy... Quote Link to comment Share on other sites More sharing options...
BUSTER Posted January 24, 2017 Share Posted January 24, 2017 We have had exactly the same problem on a few sites, Texecom panels Quote Any comments / opinions posted are my opinion only and do not represent those of my employer or Company Link to comment Share on other sites More sharing options...
james.wilson Posted January 24, 2017 Share Posted January 24, 2017 I like the Elmdene g3 myself. Range is reduced but that's cos of the bias etc 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 January 24, 2017 Share Posted January 24, 2017 I had this too, so I bypassed the tamper loop part of the contact and no more problem, can only think that the loop isn't very good inside the contact, this is the pair of white wires that are there only for a tamper Quote Trade Member Link to comment Share on other sites More sharing options...
james.wilson Posted January 24, 2017 Share Posted January 24, 2017 this cqr too? 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...
sixwheeledbeast Posted January 24, 2017 Share Posted January 24, 2017 Tamper loop is part of the interference reed circuit on most of the ones I have fitted. I remember a thread a good while back, had issues with both CQR and Elmdene on one site, seemed to be environmental. At least with the Elmdene there technical explained which colours did what so I could make interference reed trigger masked instead of tamper, you have no option with CQR. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted January 24, 2017 Share Posted January 24, 2017 I always but mask value in it so it can be seen easily 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...
sixwheeledbeast Posted January 24, 2017 Share Posted January 24, 2017 Agreed, it makes sense for a few reasons, so I realised at the time. a) You don't need to reset if you have a site with intermittent issues (as at G3 tamper should be eng reset) b) It displays on the keypad and log as a separate event to a tamper, increasing your information for diagnosis. c) Mask on most controls is above 10K, having this huge shunt resistance increases the threshold of any fluctuations from the reed. Quote Link to comment Share on other sites More sharing options...
Rubble1952 Posted January 24, 2017 Author Share Posted January 24, 2017 Nice to see not alone then. We put it down to the door not always stopping in same place and so sometimes misinterpreting this as interference. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted January 25, 2017 Share Posted January 25, 2017 I thought that was the idea of the cqr one, is it locates so removing the alignment possible 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...
Rubble1952 Posted January 25, 2017 Author Share Posted January 25, 2017 Just to clarify then, are you saying rather than use the tamper loop of the contact just use the mask part, does this still meet g3 requirement? Quote Link to comment Share on other sites More sharing options...
Nova-Security Posted January 25, 2017 Share Posted January 25, 2017 37 minutes ago, Rubble1952 said: Just to clarify then, are you saying rather than use the tamper loop of the contact just use the mask part, does this still meet g3 requirement? No We only use elmdene, only had faults like this with handed contacts until we swapped 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...
Rubble1952 Posted January 30, 2017 Author Share Posted January 30, 2017 Problem was being caused be the zone cables within the contact shorting to metallic housing and thus being fixed to metallic building putting a 0v onto steel work and then being picked up on the branch lines. Found dead shorts between data lines and earth. Doh! Quote Link to comment Share on other sites More sharing options...
datadiffusion Posted January 30, 2017 Share Posted January 30, 2017 (edited) I've had a CQR RSD (only Grade 2) go faulty after about 6 years, light use, never driven over, just became unreliable - though always at 3/4AM! Changed it for an Elmdene 3 years back and nothing since. Edited January 30, 2017 by datadiffusion Quote So, I've decided to take my work back underground.... to stop it falling into the wrong hands Link to comment Share on other sites More sharing options...
al-yeti Posted January 30, 2017 Share Posted January 30, 2017 19 minutes ago, datadiffusion said: I've had a CQR RSD (only Grade 2) go faulty after about 6 years, light use, never driven over, just became unreliable - though always at 3/4AM! Changed it for an Elmdene 3 years back and nothing since. You impact driver on it first time Quote Link to comment Share on other sites More sharing options...
oldmodern Posted January 30, 2017 Share Posted January 30, 2017 Has anyone actually heard of someone defeating a g2 contact with magnets externally?. In thirty years I have not come across it, nor any colleagues I have spoken with! Seems current M.O. for bad guys is crash grab and dash!. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted January 30, 2017 Share Posted January 30, 2017 I've seen lots of inside jobs. Often removed and sellotape together from the office is preferred. Clear lacquer and white spray paint on sensors. Usually though cause a reason to fail set. Must just be brum 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...
al-yeti Posted January 30, 2017 Share Posted January 30, 2017 50 minutes ago, james.wilson said: I've seen lots of inside jobs. Often removed and sellotape together from the office is preferred. Clear lacquer and white spray paint on sensors. Usually though cause a reason to fail set. Must just be brighton Y Brighton? Quote Link to comment Share on other sites More sharing options...
james.wilson Posted January 31, 2017 Share Posted January 31, 2017 if your gonna change things please be funny 1 1 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...
norman Posted January 31, 2017 Share Posted January 31, 2017 lol, I've also seen lots of inside work to circumnavigate detection, from school kids tampering an IR220 and putting a bit of text book in the lens to deliberate blocking of beams to force a fail to set in a tyre place and cctv proving the alarm was set after the pc was removed and window broken etc etc etc Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
datadiffusion Posted January 31, 2017 Share Posted January 31, 2017 Lol, a tyre place round our way got done the other day, 'result' seemed to be one 1998 era Windows Vista PC and a 15" oil stained LCD monitor. Why do they bother? Quote So, I've decided to take my work back underground.... to stop it falling into the wrong hands Link to comment Share on other sites More sharing options...
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