Motor-driven pump to the fuel tank in the filter pump through pipelines and oil separator oil and gas were separated, measurement converter flow through the fuel pump pressure, depending on oil, gun oil output to motor vehicles. Flow measurement converter output shaft via the angular displacement of the encoder is converted into a corresponding electrical pulse signal, by the electronic device displays the cumulative volume count indicates the amount of input fuel. Submersible pump dispenser pump fuel storage tanks located in, you can measure the converter output to multiple fuel flow, and then discharged through the oil gun. The tanker is now simple, remove the oil gun to start the system, fill the tank can automatically close the gun, and the rest as a preset, adjust the unit price, starting, stopping, searching, all kinds of tips can be achieved by operating the keyboard