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Hi jakej, If a capacitive fuel level sender could be retrofitted it would be a very nice way to solve the problem of failed resistive fuel level senders. The wire problem should be solved as well as that the disk of ca 70 mm diameter 20 mm high should be covered by teardrop bubble.

Please have a view at a MGL VEGA FF-4. Contact details Peter Funk: peter.funk@fk-aircraft.com

Affirm, they were working. The fuel level sender are of a resistive type. They are prone to failure like de VDO restive senders. Peter Funk has confirmed that the fuel level senders are near the root of the wings. They are protected by sloshing walls.

Hi jakej, The wings can be easily removed. However in the root of the wings the de-rigging system is placed. Therefore difficult acces to the tanks. Result is that only acces from the top or bottom of the wing is feasible. The fuel level senders are installed near the root of the wings. I do not...

Yep it is a ROTAX912S. No fuel return line. Both fuel level sensors are dead. Need to cut open the carbon fibre wing near the root to replace them. A very costly affair. So to replace the fuel level senders is not an option for me. Therefore the question whether with the aid of one FF sender I...

It is an FK14B ultralight.

The fuel level gauges in my tanks are dead! Prone to failure! I do not want to cut open my wings. So I would like calculate fuel left in L and R tanks using one FF transducer! Thanks for your reply!

Hello, To use one FF transducer you need to switch the white signal line to calculate of the fuel left in the L or R tank. Is this possible? Fuel level sensors have this ability. Best regards Kerstens

Hello, The dead emergency battery has prevented the D100/D120 to start up from main power. Removed this battery: everything OK! I would like to express my appreciation for the excellent help of the Dynon support. Greetings Jan Kerstens

Hello, I am a low time user of the Dynon D100/D120. It used to power on immediately when external power is applied. Now the screen remains black. Is it the internal battery that needs to be charged? Does it need to be constantly on power? Any feed back is very welcome. Greetings Jan

Thanks. Yes I can select only L or R tank. Indeed, your suggestion using one FF sender in this case will work when switching to a tank the remaining fuel of the last time is used a new input of the fuel content, etc.

Hello, Is it possible for a D100 to install 2 FF sensors to measure fuel contents in the L and R tank? I have a crippled resistive fuel sensors in the L tank and I do not want cut open the fuel tank fo my FK14B. Thanks. Best regards

Thanks Rob, The D-37 has pins 20 and 21 for Fuel Levels. So I will put one probe of the multimeter here. But where do I put the other probe as the sensor is inside the tank? There is also a nylon type connector (wings can be removed) so that I will start there checking first the integrity. In...

Thanks. Based on your experience what is the most likely location to start looking at a possible disconnection?

OK there are tanksensors. The total amount of fuel is simply the addition of these measurements if the sensors are adequately calibrated. This number can be used for input in the fuel computer. Other issue. There is one tanksensor that gives 26+ while there is no fuel present. Is this a question...

Hello, I am new to this forum. I have recently acquired an FK14 ultralight with a D100 and D120 systems. The FK14 has left and right tank in the wings. If I pose silly questions that has already been answered please accept my apologies. I studied both the Installation and Users Manuals. In the...