Home Made Fuel Gauge

[Guest MickyD]

Hi all,

 

I recently saw a post detailing a wiring diagram for a fuel gauge using lots of LED's but now can't find it!

 

Any body know where it is?

 

Many thanks,

 

Michael.

[Guest andywestmancoat]

Hi all,

 

I recently saw a post detailing a wiring diagram for a fuel gauge using lots of LED's but now can't find it!

 

Any body know where it is?

 

Many thanks,

 

Michael.

 

I've just found this on Google

 

http://www.mez.co.uk/graphics/digitallevel.gif

 

Any help?

 

Andy

[Guest MickyD]

I've just found this on Google

 

http://www.mez.co.uk/graphics/digitallevel.gif

 

Any help?

 

Andy

 

That great, cheers.

[stevedohc2b]

This may be of more use LINK

 

as it has pic as well.

 

 

Stephen

[fry61]

Looking at the wiring diagram it appears that the fuel level reostat is connected only across the ends thus giving a fixed value that will not be altered by fuel level. Doesn't a lead need to be taken from the moving contact aswell/instead of? Electronics are just black boxes to me but this set-up doesn't seem to measuring anything.

[Dave R]

all the senders i have taken apart, have been 2 wire devices, where the wiper is also connected to one end of the resistance track, and shorts it out as it moves....

if it fails, or falls off, it goes to full resistance, instead of leaving a possibly live wire swinging about in the tank

[fry61]

Thanks Dave, so the arm in the diagram needs connecting to one end or the other of the tank resistor?

[Dave R]

normally that connection is already made in the sender unit, and you are just left with earth and your resistance