How does the tanker come out of the oil?

If the customer in the purchase of our diesel fuel flow meter after the machine out of the oil does not take the word, see the following operation:
1. First check the cng fuel dispenser motherboard plug is inserted wrong;
2. and then check the coefficient of the tanker inside the normal model, the coefficient is too large or too small do not take the word, adjust the coefficient to the normal value;
3. The above operation or can not solve the problem, to initialize the system, restore the original settings;
4. System initialization or can not be resolved, the replacement of the sensor.