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Powering a sounder


 
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josh451

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PostPosted: Sat Mar 17, 2012 5:58 pm Reply with quote

When a sounder is in alarm, is the current drawn from the bell + and- terminals, or the siren and strobe trigger wire?
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Boilerman2

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PostPosted: Sat Mar 17, 2012 8:19 pm Reply with quote

Depends if the sounder is SAB or SCB Self Activating Bell/Siren, the load is on the Trig terminal - with a SCB Self Contained Bell/Siren the Sounder is powered by the internal battery (which is much larger than the Ni-cad used in an SAB

Most common Sounders are the SAB type icon_wink.gif
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madman41

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PostPosted: Mon Mar 19, 2012 10:19 pm Reply with quote

Boilerman2 wrote:
Depends if the sounder is SAB or SCB Self Activating Bell/Siren,


Self actuating bell actually, unless its mechanical icon_biggrin.gif
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Alarm

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PostPosted: Mon Mar 19, 2012 10:32 pm Reply with quote

The draw is from all the generation side and common constant pos.
Hence one fuse, glass or electronic.
And the loadings shown for quiescent and strobe and sounder in alarm.

The battery in a sounder if SAB or SCB is no different. Open up any make and see the jumpers for the operation. Note the same battery.

Your learning young one.(Madone icon_biggrin.gif)
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Europlex

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PostPosted: Tue Mar 20, 2012 6:38 am Reply with quote

madman41 wrote:
Boilerman2 wrote:
Depends if the sounder is SAB or SCB Self Activating Bell/Siren,

Self actuating bell actually, unless its mechanical icon_biggrin.gif
#
Smarty pants icon_wink.gif
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