Why 24V rather than a 12V battery? I assume it normally is powered by 12V when it alarms?To test if you need a new soanalert, remove the one you have and connect across a 24Volt battery. It should produce 110 dB sound about 1000Hz.
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I believe the buzzer is rated up to 24V, it is not getting 24V.Why 24V rather than a 12V battery? I assume it normally is powered by 12V when it alarms?
I would ask the same question, if 2 loads are in series, the voltage would be less across each device. I imagine a worn out buzzer would scream if 24v was applied! But not for long......then the magical smoke that makes the noise would be released.....
Cheers
dj
Paul, is that ground wire coming from oil pressure switch?
red line marked CPaul, is that ground wire coming from oil pressure switch?
Good point. When I replaced my sonalert, the new one was rated 12v and sounded much better than the old one, which was rated 24v and sounded pitiful. The new one came from CD. No explanation for the discrepancy in voltage ratings.Why 24V rather than a 12V battery? I assume it normally is powered by 12V when it alarms?