pekwah1
|
| posted on 23/5/13 at 06:07 PM |
|
|
Fuel tank level testing
Hi guys,
Just been testing my fuel tank level...
I don't know much about resistance but have tested the ohms on two settings and got two results as follows:
Top row is the multimeter setting.
Left column is amount of fuel in tank.
Middle figures are readings from multimeter.
...............200.........2000
Empty.......725.........200
£5............690.........165
£10..........320..........70
I'm using an acewell dash so need to tell it what range I guess but what figures should I use?
Regards
Andy
|
|
|
|
|
Slimy38
|
| posted on 23/5/13 at 06:14 PM |
|
|
The multimeter setting should only restrict the accuracy of the measurement, not the measurement itself. And usually if the resistance is higher than
the range it shows 'E' or similar, so your first column seems wrong to me.
Do you have access to a resistor that you know the value of, in order to test whether your multimeter is working?
|
|
|
gremlin1234
|
| posted on 23/5/13 at 07:32 PM |
|
|
was there anything else in circuit at the time of testing ? ie - did you test it in isolation ?
|
|
|
theprisioner
|
| posted on 23/5/13 at 07:39 PM |
|
|
I think you have a conductivity issue between the slider and the resistance wire. This can be overcome by using a good old fashioned Avo type or
moving coil meter. Old fashioned meters pass more current thus overcoming the conductivity issues of dissimilar metals of the slider and resistance
wire.
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
|
|
|
pekwah1
|
| posted on 23/5/13 at 08:24 PM |
|
|
I think I'm being a bit retarded.
I have one spade connector on the outside of the tank and that's it.
I had one terminal on that and the other on an earth on the tank itself.
How can I test it if its already fitted?
|
|
|
