Diesel tank level gauge to satisfy the use of outdoor work, on the whole electronic oil tank gauge the corresponding explosion-proof insulation measures are taken, and designed a light and handy data collector as a signal at the receiving end, the reasonable collocation of this data collector through hardware and software design, do the humanized menu, practical function.Main metering performance test of the system through the laboratory calibration and comparison method, a higher level through laboratory measurement standard quantity traceability, its length, temperature and capacity to get a reliable calibration measurement indicators.Is the system of measuring performance verification through quantity and stability of measurement standard for comparison manner, to confirm its overall system uncertainty.Through theoretical calculation and calibration laboratory, automatic tank gauge systems confirm the automatic tank gauge systems is better than 0.05%, the overall uncertainty can conduct the accuracy level of 0.3% of fuel tankers of metrological verification, and its structure and the control performance is completely accord with the actual work needs.The electronic oil tank gauge can play a major role in the field of fuel tankers calibration, effectively reduce the staff labor intensity, improve work efficiency.