Capacitance Level Sensor/Transmitter (FUELTRANCE) is a compact, low cost microcontroller based level transmitter with analogue output designed to measure the level of various non viscous, non conductive fuel oils, such as Diesel. Measuring range is 0.2 to 3 M for rod probe version.
The probe forms an electrical capacitor with the grounding still well, provided on the sensing rod. An initial capacitances exists between the electrode and the steel well. When the probe become covered with material to be measured the capacitances will increase and change will be measured and converted into an analogue output signal proportional to the level change.