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Intruder, Fire, CCTV, Emg Light, Access Control
Bell box sounds 10 mins after mains failure
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<blockquote data-quote="Bruspark" data-source="post: 482867" data-attributes="member: 20106"><p>Odd as generally the bell box battery is continuously charged from the panel using mains or back up battery power and when the cable to it signals for it to ring or the cable appears to be disconnected or shorted etc it sounds using its own battery power alone (for c 15-20 minutes when new.)</p><p></p><p>It may be that the bell considers it has lost charge power from the panel at a higher voltage than the panel minimum working voltage (which could be a symptom of a poor connection on the charge wire). </p><p> After checking the manual for any unusual programming options first step is to monitor the panel battery voltage with the mains disconnected remembering that 12V in standby from a panel Lead acid battery is pretty much flat . .</p><p> 2 years is young for lead acid but they are often failing by 4 or 5 </p></blockquote><p></p>
[QUOTE="Bruspark, post: 482867, member: 20106"] Odd as generally the bell box battery is continuously charged from the panel using mains or back up battery power and when the cable to it signals for it to ring or the cable appears to be disconnected or shorted etc it sounds using its own battery power alone (for c 15-20 minutes when new.) It may be that the bell considers it has lost charge power from the panel at a higher voltage than the panel minimum working voltage (which could be a symptom of a poor connection on the charge wire). After checking the manual for any unusual programming options first step is to monitor the panel battery voltage with the mains disconnected remembering that 12V in standby from a panel Lead acid battery is pretty much flat . . 2 years is young for lead acid but they are often failing by 4 or 5 [/QUOTE]
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Intruder, Fire, CCTV, Emg Light, Access Control
Bell box sounds 10 mins after mains failure
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