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...
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