thefreak
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| posted on 9/4/09 at 06:44 PM |
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Fuel sender
Ok, I think I've found the problem with my sender.
I've built an electronic fuel gauge and struggled every step of the way.
I finally got it working but it's not that reliable and having taken apart the sender and found the board the wound wire is mounted to is
damaged.
So what I'm after is a side mount fuel sender. Does anyone know where I could get one from? The ones on ebay all seem to be top mount... could a
top mount simply be turned around or modified to fit the big hole in the side of the fuel tank 
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BenB
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| posted on 9/4/09 at 06:45 PM |
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Don't forget that different fuel senders have different resistances.... so unless your fuel meter is adjustable you'll need one with the
same operating characteristics as the other one (just not broken)!!!!!
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thefreak
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| posted on 9/4/09 at 06:56 PM |
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The one I've made is based on the one here:
http://www.mez.co.uk/ms13.html
So yes, it's fully adjustable. it just compares the input from the sender with the input from the variable resistors and lights the LED up.
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BenB
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| posted on 9/4/09 at 09:29 PM |
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Aha! The only thing you might find with that circuit is that there's no noise suppresion or hysteresis so when you're signal is close to
the switch over from one LED to the other you'll find the LED will flash on / off as it crosses / uncrosses the threshold....
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