Fuel qty displayed in tenths please

[Ccandrews]

In a previous post a user requested that there be an option to display fuel quantity in tenths. Dynon responded that they do not display tenths because the sender is not that accurate. The signal from fuel level transmitter is simply a proportional signal indicating the level of fuel and the sensor has an accuracy that is a percentage of full scale. Put a 2% sensor in a 50 gallon tank and it may be accurate to 1 gallon. Put the same transmitter in a 5 gallon tank and of course the percentage accuracy stays the same but the actual engineering unit accuracy is now 1/10 of a gallon. My tanks are much closer to 5 gallon than 50 so the 1/10 display of the fuel quantity would be very useful.

So can we please get the option to display fuel in tenths?

Thanks

Craig

 

[kellym]

In a previous post a user requested that there be an option to display fuel quantity in tenths. Dynon responded that they do not display tenths because the sender is not that accurate. The signal from fuel level transmitter is simply a proportional signal indicating the level of fuel and the sensor has an accuracy that is a percentage of full scale. Put a 2% sensor in a 50 gallon tank and it may be accurate to 1 gallon. Put the same transmitter in a 5 gallon tank and of course the percentage accuracy stays the same but the actual engineering unit accuracy is now 1/10 of a gallon. My tanks are much closer to 5 gallon than 50 so the 1/10 display of the fuel quantity would be very useful.

So can we please get the option to display fuel in tenths?

Thanks

Craig

Most measurement devices are not a straight line proportionality, such that accuracy near the top and bottom of the scale has much higher percent error. I don't think you are going to find fuel tank sending units that are accurate to much better than the nearest 1/2 gallon, and even that is questionable. Even if my system could tell me that I had 4.7 gallons left, I would be rounding that down to 4. If an aircraft that only uses 3.5 gal/hr, I'd still be wanting to be on the ground very soon.

 

[DBRV10]

Try Litres

That is near enough to 1/4 gallons..........but it will mess with your heads over there for sure!