X21RV6A
Member
Looking for assistance with a Princeton Fuel Sending Unit.
I ordered 2 custom bent Capacitive Probes from Aircraft Spruce for my RV6. I
received the probes directly from Princeton, installed them and calibrated
them at empty & then filled both tanks with fuel and calibrated for full (19
gallons each tank) I then drained both thanks and set the Dynon EMS
D10 to fuel sensor to type 2 (Capacitive) and then calibrated the D10
for each tank by starting with fill value, and then adding 2 gallons
each time until full. The issue I am having is that the sending units stop
changing the value at 10.1 gallons for the left tank and 12.2 gallons for the right tank. The left tank calibration
values look like this:
1 +109 0.00
2 +1960 2.00
3 +2576 4.00
4 +3016 6.00
5 +3381 8.00
6 +3564 10.00
7 +3580 10.11
After the 10th gallon the Dynon give me an error indicating that is did not detect a change and asked if fuel was added. It is similar for the
right tank. Why is the sending unit not responding after 10 gallons? The probes appear to be very accurate between 10 gallons and empty, but I don't like looking over at the Dynon and having it display information that I know to be inaccurate.
I have tried calling Princeton several times and continue to get their voice mail. I have also sent them emails, with no response. They don't have a web site so struggling to get answers.
Any assistance greatly appreciated.
I ordered 2 custom bent Capacitive Probes from Aircraft Spruce for my RV6. I
received the probes directly from Princeton, installed them and calibrated
them at empty & then filled both tanks with fuel and calibrated for full (19
gallons each tank) I then drained both thanks and set the Dynon EMS
D10 to fuel sensor to type 2 (Capacitive) and then calibrated the D10
for each tank by starting with fill value, and then adding 2 gallons
each time until full. The issue I am having is that the sending units stop
changing the value at 10.1 gallons for the left tank and 12.2 gallons for the right tank. The left tank calibration
values look like this:
1 +109 0.00
2 +1960 2.00
3 +2576 4.00
4 +3016 6.00
5 +3381 8.00
6 +3564 10.00
7 +3580 10.11
After the 10th gallon the Dynon give me an error indicating that is did not detect a change and asked if fuel was added. It is similar for the
right tank. Why is the sending unit not responding after 10 gallons? The probes appear to be very accurate between 10 gallons and empty, but I don't like looking over at the Dynon and having it display information that I know to be inaccurate.
I have tried calling Princeton several times and continue to get their voice mail. I have also sent them emails, with no response. They don't have a web site so struggling to get answers.
Any assistance greatly appreciated.