kensplace Posted September 29, 2008 Share Posted September 29, 2008 Picked up some 'grade 3' door contacts, thinking they would be better than the ones I currently have, but it appears that they are grade 3 to prEN 50131-1: 2004 or PD6662. Not really any different from what I currently have other than they have a premade lead and inbuilt resistors... I am looking for some that would meet European standard (DD CLC/TS 50131-2-6 for magnetic contacts) that are known to be reliable and preferably reasonably priced Has ssaib's position changed on contacts since the Dec 2005 bulletin which said they dont raise a problem with contacts that dont meet this standard? Or do they still allow the UK standard prEN 50131-1: 2004 / PD6662 style contacts to be used (if so, WHY ON EARTH!!!!!) Link to comment Share on other sites More sharing options...
Guest anguscanplay Posted September 29, 2008 Share Posted September 29, 2008 sorry mate but can you explain the differences? Link to comment Share on other sites More sharing options...
kensplace Posted September 29, 2008 Author Share Posted September 29, 2008 Trying to avoid saying to much, as if I say in easy terms, or it could be mis-used. prEN 50131-1: 2004 or PD6662 from what I can see (and from testing the contacts I got) dont seem to require grade 3 to have immunity from tampering from a certain external influence. Apparently the standard contains a note saying it may be needed, but according to the bulletin mentioned earlier it states This Note does not constitute a requirement within the standard, and therefore ... etc snipped etc .... suggestion for consideration, but is not mandatory. The euro standard, and maybe other later british ones (no idea, not got all the regs, just going by what I can see on the net) require they either detect or be immune to the external tamper influence that could cause the problem... Im just after a contact that cant be tampered from outside by someone who knows how to with simple items. The grade 3 ones I got which comply to pd6662:2004/en50131-1:1997 seem no better than my old grade 1 or 2 contacts (no immunity or detection of external etc.etc) Link to comment Share on other sites More sharing options...
Guest anguscanplay Posted September 29, 2008 Share Posted September 29, 2008 right so you`ve got very old G3 contacts, I understood the cut off point to be April 07 elmdene or knight plastics (our current favourite) - if you search the site there are quite a few piccys of them Link to comment Share on other sites More sharing options...
kensplace Posted September 29, 2008 Author Share Posted September 29, 2008 right so you`ve got very old G3 contacts, I understood the cut off point to be April 07elmdene or knight plastics (our current favourite) - if you search the site there are quite a few piccys of them . Yeah, they are new old stock by the looks of it, dated around end of 2006 ish. Link to comment Share on other sites More sharing options...
shieldssecurity Posted September 29, 2008 Share Posted September 29, 2008 Picked up some 'grade 3' door contacts, thinking they would be better than the ones I currently have, but it appears that they are grade 3 to prEN 50131-1: 2004 or PD6662. Not really any different from what I currently have other than they have a premade lead and inbuilt resistors... I am looking for some that would meet European standard (DD CLC/TS 50131-2-6 for magnetic contacts) that are known to be reliable and preferably reasonably priced Has ssaib's position changed on contacts since the Dec 2005 bulletin which said they dont raise a problem with contacts that dont meet this standard? Or do they still allow the UK standard prEN 50131-1: 2004 / PD6662 style contacts to be used (if so, WHY ON EARTH!!!!!) I've used this type and I've still got a load "25 years of experience has taught us to care about the smaller jobs and given us the expertise to succeed in the larger ones" Link to comment Share on other sites More sharing options...
whistle Posted September 29, 2008 Share Posted September 29, 2008 Fitted loads of the G3 Elmdean with very few problems. Although they have to face the right way or the reed for the immunity causes a problem. Link to comment Share on other sites More sharing options...
Guest anguscanplay Posted September 29, 2008 Share Posted September 29, 2008 Although they have to face the right way or the reed for the immunity causes a problem. your joking - right? I tried the encapsulated 20mm G3 ones but found the operating gap was too tight for most doors Link to comment Share on other sites More sharing options...
james.wilson Posted September 29, 2008 Share Posted September 29, 2008 the elmdenes are immune and dont have an additional reed for 'mask' detection. 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...
kensplace Posted September 29, 2008 Author Share Posted September 29, 2008 Mine are elmdenes also, but brown in colour, exactly the same instruction sheet, and packaging though. Slight difference in model no, mine is 6sl-bn-gn 1k0/1k0 eol resistors. Wired up blue/red shorted together, black and yellow for test readings giving 1k/2k readings depending if reed open or closed. Is that correct? Not fitted to door frame yet, but held against a cupboard door for example and tested for immunity they failed.... Maybe the extra thickness of a door frame will do the trick, only way would be to give it a try later on. But I figured immune should mean immune.... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.