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Magnetic Contacts Sticking on Un-Opened Windows

Eugene's DIY Den
in !!..DIY Installers..!!

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  • Author
4 hours ago, al-yeti said:

Just wondering how you update it , your in Ireland yes? 

 

Updates allow you to use some new devices that come out and fix any issues , although mostly I only needed to update for devices , firmware seems stable otherwise 

Yes, I'm in Ireland. I presume firmware upgrades can be installed via an RS232 serial connection to a laptop or similar, but  you have to be a professional installer to download them from the manufacturer's website. I'm curious though what constitutes an alarm condition on a sensor. I.e how long contacts have to be open in order to trigger the panel. If this was relatively long, it could make the panel more immune to transients. A magnetic contact/ PIR contact would probably open for 100ms. A transient could be shorter, but the software might detect it if it's scanning everything rapidly. On a couple of occasions with my old panel, a zone triggered with the panel armed when I pulled out a mains plug. The alarm cable was quite close to the mains cable though.

Talking Tools, a Facebook group for discussing anything tool/DIY related.
 

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  • MrHappy
    MrHappy

    The reed is just little bit of metal in glass tube....   I reckon most of the branded alarm contact manufactures buy in the same Reeds...   The gases escapes for the glass tube &am

  • Amps
    Amps

    I think these contacts have done you proud. Time to replace them.

  • MrHappy
    MrHappy

    there on surfaces which are stepped apart, a "chunky contact" does 30-40mm gap I wouldn't fit then in the locations you've got     

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If not an analysed circuit then the response time is greater than 300ms exactly for this purpose

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, If not an analysed circuit then the response time is greater than 300ms exactly for this purpose

securitywarehouse Security Supplies from Security Warehouse

Trade Members please contact us for your TSI vetted trade discount.

  • Author
7 hours ago, james.wilson said:

, If not an analysed circuit then the response time is greater than 300ms exactly for this purpose

On older "dumber" panels, would it have been less than this?

Talking Tools, a Facebook group for discussing anything tool/DIY related.
 

It was a requirement in bs4737 so anything pro that met that std. Diy stuff who knows 

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