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fuel transfer controller

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PostPosted: Mon Jan 01, 2018 2:08 pm    Post subject: fuel transfer controller Reply with quote

oops. Forgot to insert a subject in the previous post. Sorry for the

On 1/1/2018 3:48 PM, Charlie England wrote:
Greetings, and happy new year!

There was a thread back in June 2017 about a fuel transfer controller,
but I never saw a conclusion. Here's a link to the forum version
(unfortunately, I don't think all the posts show up in this link):

Did that project ever come to fruition? I saw mention of the circuit
having hysteresis numbers, but never saw how they were set or determined.

I'm interested in something like this for my RV-7, which has added
tanks added (configured to feed the engine from one tank, with
transfer from 3 aux tanks).

My goal would be to drive a Facet Cube pump (likely 2-3 amps run
current, call it 5A max).

Use the stock 240 ohm resistive fuel level sender as the level source
for the controller, but have flexibility to feed it 12V if using stock
gauges, or 5V if driven by an engine monitor.

Have 'settable' tank-full and pump-start reference voltages.

Nice to have: auto-shutoff on a tank dry signal (I'm using an optical
sensor in the line after the aux tank fuel selector).

Any thoughts?



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