angus99
Guru
I’m wiring the Borel twin exhaust gas temp alarm and flybridge remote I received for Christmas and would like to know how others have handled the power supply.
The instructions say “Connect 12VDC to any positive supply that is powered while engine is in operation.” For any of you that have a Borel system, did you take power off the ignition switch . . . or where?
I’m thinking of using a 12-VDC source that I normally switch on at the panel while the engines are running but are not part of the ignition circuitry. There is also the option of an always-on DC source that is available whether the engines are running or not, but that would involve long, difficult wire runs.
Also, I normally fuse any power supply. In this case, however, I would guess any fuse failure would go unnoticed and defeat the purpose of the alarm. What is the consensus on fusing an alarm circuit when it is only energized if the temp sensor set point is exceeded (167F)? When energized it’s supposed to see 20 mA, not to exceed .5 amps.
Thanks in advance.
The instructions say “Connect 12VDC to any positive supply that is powered while engine is in operation.” For any of you that have a Borel system, did you take power off the ignition switch . . . or where?
I’m thinking of using a 12-VDC source that I normally switch on at the panel while the engines are running but are not part of the ignition circuitry. There is also the option of an always-on DC source that is available whether the engines are running or not, but that would involve long, difficult wire runs.
Also, I normally fuse any power supply. In this case, however, I would guess any fuse failure would go unnoticed and defeat the purpose of the alarm. What is the consensus on fusing an alarm circuit when it is only energized if the temp sensor set point is exceeded (167F)? When energized it’s supposed to see 20 mA, not to exceed .5 amps.
Thanks in advance.