Brand: BFGoodrich Aerospace
PN: 10037-4000-0213
The unit is pure digital and it is expecting much more than a capacitance at the input to measure the level of fuel.
The back draw if this unit is that it is totally sealed, so due the fact that I don't have any schematics of this I had to open it cutting the housing.
After tracking the electronic circuits I found out the following:
The testing circuit would be something like this:
This is what I got:
It was great to see the indicator displaying some data!! It toke me quite a lot to know how was working.
I don't have any record of the output signals in the pins 2 and 3, but I can tell that these two signals are quite complex and they are driving the probes that are installed in the fuel tanks.
Enjoy!!
