chris_harris_
|
| posted on 17/4/07 at 03:42 PM |
|
|
Fuel gauge measuring
Hi guys, i need to work out what fuel sender i need, so was going to use a variable resistor to try and identify what ohms is empty and what is full.
Does anyone see any problem with that, and would one of these Do the job. I
have a multimeter to check what i am applying. Cheers
Regards Chris
|
|
|
|
|
02GF74
|
| posted on 17/4/07 at 03:58 PM |
|
|
a lot of fuel guages work with senders that are about 30 ohm full to 270 ohm empty.
those pots you should will work. you would measure resistance across the pot afterwards.
|
|
|
chris_harris_
|
| posted on 17/4/07 at 04:06 PM |
|
|
Ok thanks, so we need one that rads to at least 270 ohms then. sothat would probably be the 470k one then? Still there chap enough to mess with
anyways.
Regards Chris
|
|
|
02GF74
|
| posted on 17/4/07 at 04:22 PM |
|
|
quote:
Originally posted by chris_harris_
Ok thanks, so we need one that rads to at least 270 ohms then. sothat would probably be the 470k one then? Still there chap enough to mess with
anyways.
ooh no, you need the 1K one (the suffix K is for kilo, greek for 1,000 so 470K = 470,000 ohm  way too mcuh for what you want to do); and use the
linear tracked one.
I'd sugget using one of thetrim pots since they are cheaper and you only use it once.
|
|
|
chris_harris_
|
| posted on 17/4/07 at 04:29 PM |
|
|
Ok think i got it now. But can't see the trim pots, just the top one on the link i puton. code is FW00A. would that be right?
Regards Chris
|
|
|
