Capacitance fuel sensors - 10V

[RV7Ron]

My capacitance fuel sensors wont calibrate. They read 0.71 volts and don't change as I add fuel. They also show a maximum of 10 volts in the debug data screen. Not 5V like I believe they should. Has anyone experienced this...any clues about what to check in my wiring?

 

[dynonsupport]

Which capacitance fuel sensors do you have?

Some of them such as Princeton require a self-calibration step before attempting calibration in the Dynon EMS.

My capacitance fuel sensors wont calibrate. They read 0.71 volts and don't change as I add fuel. They also show a maximum of 10 volts in the debug data screen. Not 5V like I believe they should. Has anyone experienced this...any clues about what to check in my wiring?

 

[RV7Ron]

I do not have the Princeton version...the other variety that I believe Dynon sells directly but don't mfg, the name escapes me at the moment...

Which capacitance fuel sensors do you have?

Some of them such as Princeton require a self-calibration step before attempting calibration in the Dynon EMS.

My capacitance fuel sensors wont calibrate. They read 0.71 volts and don't change as I add fuel. They also show a maximum of 10 volts in the debug data screen. Not 5V like I believe they should. Has anyone experienced this...any clues about what to check in my wiring?

 

[dynonsupport]

The only converter Dynon sells directly is the one Dynon makes, so we really need to know what converters you have.

It's also impossible for the debug screen to show more than 5V on any pins except Pins 1 and 2, because the hardware is incapable of reading more than 5V. Are you sure it is showing 10V in the cal (v) column?

 

[RV7Ron]

I do have the Dynon version.

I cant seem to post a picture to illustrate this, but it does show 10V on pins 8 and 22.

Thinking through this...if I had a bad power line, it would read ~0V...if I had a bad ground, it would read ~5V. The 10V throws me...