Navman Fuel transducer
 

Greetings,

I'm trying to adapt a pair of Navman fuel transducers to my own controller.
The controller exists and reads high speed pulses from other devices. The
transducer needs a voltage and ground. But what voltage?

I've metered out the wiring harnesses used to add fuel calculations to a
Navman Tracker 5500. I appears that +12 VDC is supplied to the Tracker and
it then outputs a voltage to the fuel transducers. I don't have the tracker,
so I can't determine whether this is 12 V (possibly regulated) or a lower
voltage such as 5 VDC.

Anybody know??

Thanks,

Bob