Fuel Level Measurement

jschneider · Post by **jschneider** » Thu Apr 06, 2017 2:57 pm

Hello,

I would like to measure the fuel level in my fuel cell with the original sender. I have the following set-up: ATL float style 240 Ohm empty - 33 Ohm Full with an ATL fuel gauge mounted in dash. My question is how will I convert resistance into a 0-5V signal? What would the voltage be for the above specs or do I need to measure by moving the float? Any help or advice would be greatly appreciated.

Thanks

PopKorn78 · Post by **PopKorn78** » Thu Apr 06, 2017 3:56 pm

Mesure the voltage by moving it, I did it that way and it works great.

jschneider · Post by **jschneider** » Fri Apr 07, 2017 5:21 pm

Thanks a lot for the information. I get 7.38V empty and 2.47V full. I think placing a resistor in-line to the RCP will step down the voltage to below 5V but I am not sure which one to use. Also, does it matter that the voltage is higher for empty? Can I set-up the RCP to account for this?

Thanks again for the help!

PopKorn78 · Post by **PopKorn78** » Fri Apr 07, 2017 5:46 pm

For the resistor, I can't really help. For the voltage beeing higher when empty, I had the same, you can configure the rcp to show this.