T&T: Re: Alarm Mute Control

[Glen Zwicker]

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