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Discuss Menvier MF400 ,.fire but nothing obvious ? in the Security Alarms, Door Entry and CCTV (Public) area at ElectriciansForums.net

Mikegh

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Could be I used to have one leg off at the bases alarms and breakglass

That would seem the most likely for IR testing

Wired loads of them but literally can't remember now
 
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Mikegh

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Tried the eol at the panel - no good

Tried the eol halfway on the detection zone - no good

Bypassed the BG at the door -alarms off so problem solved


What what exactly is the mechanism of operation of the BG.I opened it and it has to be a magnet that moves up and down making the circuit ?

There's nothing on the front sections mechanically or electrically connected to the back piece
 

Phil L

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Break glass has a rotary movement which moves the glass, at the top of where the glass sits there will be a micro switch which is held in position in its normal state and released on alarm
 

Mikegh

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Break glass has a rotary movement which moves the glass, at the top of where the glass sits there will be a micro switch which is held in position in its normal state and released on alarm
Seemed to me.loke a wireless connection between front and back when I opened it , dunno maybe I'm mistaken

Thanks for the assistance
 

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