Next message: (no name): "T&T: Alarm Mute Control"
BlankFrank wrote:
"I want to add a mute button to my existing engine alarm system. I have a
hot wire from the gauge circuit connected to a loud bell and the ground is
provided by temperature and oil pressure sensors......"
Reply:
Put a Center-off SPDT swich, of appropriate rating, in your ground
circuit. Connect one side of the switch to your sensors, the other side to
ground and the center to the alarm circuit. Label the switch ENGINE ALARM
ON-OFF-TEST . You could use two switches, one for each engine, or one for
oil pressure and one for temperature. Don't forget to turn them on though!
The test function will work even when you're underway if you need
reassurance.
Cheers,
Glen Zwicker
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