Alex Posted April 13, 2009 Share Posted April 13, 2009 Hello, what would you say are the best Grade 2 (and grade 3) door contacts (flush/surface)? I've replaced some surface grade 3 ones recently due to false alarms with grade 2 (were grade 2 systems furtunately) . Haven't had any problems since. Have you had any probs with grade 3 contacts? , Alex , Alex Link to comment Share on other sites More sharing options...
james.wilson Posted April 13, 2009 Share Posted April 13, 2009 lots of discussion on the trade side about this but yes there have been issues for some brands. We use elmdene and dont have any issues apart from roller doors. tbh i think the contact has had its day. 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...
steven sneddon Posted April 13, 2009 Share Posted April 13, 2009 tbh i think the contact has had its day. Can you elaborate on that James? Link to comment Share on other sites More sharing options...
Guest old-hand Posted April 13, 2009 Share Posted April 13, 2009 lots of discussion on the trade side about this but yes there have been issues for some brands.We use elmdene and dont have any issues apart from roller doors. tbh i think the contact has had its day. ~Pir`s on entry exit?????? Link to comment Share on other sites More sharing options...
DirectFS Posted April 13, 2009 Share Posted April 13, 2009 tbh i think the contact has had its day. This is a theory I almost ....just almost......commented on in another thread this weekend - forget which one right now, as Mr Carlsberg's memories are still foremost in my mind at this moment...... However, I am in agreement with you on this totally. I do believe it is time we came up with alternatives for the "humble" door contact. A replacement would be difficult, though - what is more simple in principle than a contact, yet offers as much flexibility? Flush contacts are susceptible to water ingress, whilst surface contacts are vulnerable to damage from impact. Both are vulnerable to magnet issues, such as theft of the magnet, or even just alignment - something that beams also suffer from. Space detection is not a viable replacement for contacts, as someone suggests, tongue in cheek - and ideally the replcaement device would also be as solid state as possible - no moving parts - and as impervious to all the faults of today's detection as possible. Of course, nailing the sub's doors shut isn't really an answer either, much as it would solve their problem. The other thing with this is that a door contact actually only helps if someone is kind enough to put the whole door in. If they merely remove panels within the door, the contact may not break circuit at all. Yet, for all this said, I am struggling at this point to imagine an alternative - and am inclined to think that perhaps what we really want is a "better" contact, which doesn not suffer the probelms of the current crop. Bill. Bill Accord Fire & Security Services Ltd. www.accordfire.co.uk ~ TEL: 0845 474 5839 Link to comment Share on other sites More sharing options...
y-i-out-of-bed Posted April 13, 2009 Share Posted April 13, 2009 did you swap contact and magnets? as these are matched sets on grade 3 and exsisting mags wont cut it also got good g2 contacts on doors and windows 6 zones all ground floor external windows + doors no problems, also if someone dose go trough door panle's then wont couse entry and couse alarm on pir so Link to comment Share on other sites More sharing options...
james.wilson Posted April 13, 2009 Share Posted April 13, 2009 Bill Im thinking something along the lines of a small tag reader. This would then detect the presence of the allowed tag, and would ignore illigal tags. Maybe afetr 10 incorrect tags were detected it could record a mask attempt etc. Read range would be quite large, waterproof etc. BUt expensive to manufacture. However i have said this before about 4 yrs ago, and i reakon the reed and magnet will be with us for some time yet. 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...
y-i-out-of-bed Posted April 13, 2009 Share Posted April 13, 2009 maybe need two nails in the frame and metal strip on door, door closes metal strip connects the two nails, there you go contact of the future if anyone interested patent pending, lol Link to comment Share on other sites More sharing options...
lawandorder Posted April 13, 2009 Share Posted April 13, 2009 Must admit I'm not familiar with the problems that people seem to be experiencing with contacts but in my experience they are the most reliable for of protection there is. It is true that it is possible to get through a door without opening it but if it's a final exit door and the area is also covered with a PIR it's not a problem. I really don't get this "contacts have had their day" argument at all, what better way of protecting an opening door or window than a simple reliable non electronic detector? (backed up with trap protection/SID where needed) Link to comment Share on other sites More sharing options...
y-i-out-of-bed Posted April 13, 2009 Share Posted April 13, 2009 contacts are the only way to go or lock with switch contact in it, but no problems with any contacts here only old ones lol Link to comment Share on other sites More sharing options...
Guest old-hand Posted April 13, 2009 Share Posted April 13, 2009 maybe need two nails in the frame and metal strip on door, door closes metal strip connects the two nails, there you go contact of the future if anyone interested patent pending, lol Door Transfer unit used in Europe for years................................not compliant but a great item. Link to comment Share on other sites More sharing options...
lawandorder Posted April 13, 2009 Share Posted April 13, 2009 Door Transfer unit used in Europe for years................................not compliant but a great item. Are these used to connect things like shunt locks in the same way as we would use a door loop? Link to comment Share on other sites More sharing options...
james.wilson Posted April 13, 2009 Share Posted April 13, 2009 lawandorder Do you use grade 3 contacts or are you on about the old ones we aint allowed to use anymore? 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...
Guest old-hand Posted April 13, 2009 Share Posted April 13, 2009 Are these used to connect things like shunt locks in the same way as we would use a door loop? Yep. Basically they are a moving part that sends a voltage or can be used as a shunt CCT. Moving as in the receiver is "sprung" the receiver is passive. Cisa SRS and a host of others sell them Link to comment Share on other sites More sharing options...
lawandorder Posted April 13, 2009 Share Posted April 13, 2009 lawandorderDo you use grade 3 contacts or are you on about the old ones we aint allowed to use anymore? TBH I have never used a grade 3 contact which is probably why I don't understand the problem. I haven't worked full time in the trade for a few years now and the odd bit I do now is small domestics and the odd bit of maintenance to help a mate out. Are grade 3 a bit problematical? (is that a real word)? LOL Link to comment Share on other sites More sharing options...
jennypatel Posted August 26, 2010 Share Posted August 26, 2010 Well, I am using the grade 3 doors and I have faced the problem till now. Grade 3 doors are much better then the grade 2 doors and works really well. Link to comment Share on other sites More sharing options...
james.wilson Posted August 26, 2010 Share Posted August 26, 2010 grade 3 doors, or grade 3 door contacts? 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...
Matt-B Posted December 26, 2011 Share Posted December 26, 2011 SEAP Class 3 doors? Link to comment Share on other sites More sharing options...
MrHappy Posted December 26, 2011 Share Posted December 26, 2011 SEAP Class 3 doors? maybe, but looking at the posts dates I rekcon he's sorted by now? Mr Veritas God Link to comment Share on other sites More sharing options...
spike27 Posted August 9, 2013 Share Posted August 9, 2013 Our YEND74 is extremely popular, and indeed one of our biggest Grade 3 sellers. Main features are: selectable resistors on board for all the main UK intruder panels header supplied to bypass the Magnetic Interference Detection to quickly turn it into a Grade 2 surface contact works on double doors comes with two free packing spacers for awkward frame / doors. Product at the link:http://www.knightfireandsecurity.com/view_item.asp?id=212 http://www.linkedin.com/profile/view?id=74794063 Link to comment Share on other sites More sharing options...
Oxo Posted August 10, 2013 Share Posted August 10, 2013 Curtain PIR. Sorted Link to comment Share on other sites More sharing options...
arfur mo Posted August 10, 2013 Share Posted August 10, 2013 i had problems with knight plastics surface G2 contacts, the anti tamper loop was not soldered, only one twist the stuffed into some kear sleeving. net results loads of tampers after about 6 months installed. you think just an odd one got through, but after a third failed i stripped out ones i had in stock, and, all were the same but credit due, their G3 RSC have been excellent Our YEND74 is extremely popular, and indeed one of our biggest Grade 3 sellers. Main features are: selectable resistors on board for all the main UK intruder panels header supplied to bypass the Magnetic Interference Detection to quickly turn it into a Grade 2 surface contact works on double doors comes with two free packing spacers for awkward frame / doors. Product at the link:http://www.knightfireandsecurity.com/view_item.asp?id=212 i used these this year, very good to on metal doors and frames . If you think education is difficult, try being stupid!!!! Link to comment Share on other sites More sharing options...
spike27 Posted August 12, 2013 Share Posted August 12, 2013 i had problems with knight plastics surface G2 contacts, the anti tamper loop was not soldered, only one twist the stuffed into some kear sleeving. net results loads of tampers after about 6 months installed. you think just an odd one got through, but after a third failed i stripped out ones i had in stock, and, all were the same but credit due, their G3 RSC have been excellent i used these this year, very good to on metal doors and frames . for the feedback Arfur, both good and bad! Yes, we did indeed get a few issues with installers saying the solder was snapping on the G2 surface contacts (only about 20 out of around 30,000, but still 20 too many), so we revisited the design on this and will shortly be releasing a superior version called the YEND24 (your part was the YEND21). http://www.knightfireandsecurity.com/view_item.asp?id=354 The new version will have a PCB on a base, with a lid (along the lines of our YEND74, D75 and D75MULTI). This product will fit the same footprint, but will have far more room inside for connections, and then you just screw down the lid. The headers provided will cover all of the main UK panels including Honeywell / Cooper / Texecom / HKC / RISCO / Guardall etc, and even some variations of these values such as Inner Range (2k2 6k8). There is also the option of a traditional 4 wire / no resistor option. It will have true double door functionality for all the main UK panels (some panels couldn't handle the original version), and there will also be a Grade 3 version with Magnetic Interference Detection, part code XEND24. http://www.linkedin.com/profile/view?id=74794063 Link to comment Share on other sites More sharing options...
datadiffusion Posted August 12, 2013 Share Posted August 12, 2013 Still made in the UK Spike? 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...
matthew.brough Posted August 12, 2013 Share Posted August 12, 2013 Must admit a bit of a fan of your kit. Use a fair bit of it. www.securitywarehouse.co.uk/catalog/ Link to comment Share on other sites More sharing options...
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