1) The foundation is not strong, which affects the zeroing of the instrument. The gasoline truck scale instrument does not return to zero. On the one hand, the foundation is uneven; on the other hand, the equipment is not firmly placed. By solving these two problems, the instrument can be guaranteed to be zeroed.
3) Improper restriction causes the instrument not to return to zero. After the horizontal and vertical limit devices of the scale body are fixed, due to thermal expansion and contraction, the limit bolts are not adjusted in time, and sometimes the scale body is pushed sideways, causing the instrument not to return to zero. The elimination method is to adjust the limit in time according to the expansion in summer and contraction in winter.
4) The sensor is damaged, causing the instrument to not return to zero. Sensor damage is the main reason why the meter does not return to zero. The maintenance technique is to replace the sensor.
5) Insufficient maintenance can also affect the instrument. Gasoline truck scales are usually placed outdoors, and dust, leaves, coal, sand, stones and other debris scattered by vehicles can block the standard gap at any time. Affects the zeroing of the instrument; the maintenance method is to ensure high standards of daily maintenance.
2. Digital flashing prompts possible faults and maintenance tips
There are three faults that may cause the instrument's numbers to flash. First, there is a problem with the instrument or the power supply system is unstable; Second, the sensor plug has poor contact or
The first is instrument failure; second, sensor problem; third, poor contact of the power supply line. The failure of this kind of Petrol Car is generally a comprehensive problem. Therefore, it is necessary to check and test the circuits and original components one by one with a multimeter. Repair techniques include replacing components and reinforcing line joints.
3. Rapid failure and maintenance technology
This is a communication failure signal, and the communication between the instrument and the sensor is likely to be interrupted. The basic steps and techniques to repair this type of Petrol Car failure are to first check the power supply system of the sensor. The first step is to check the junction box. If there is no problem with the junction box, the working condition is good, and all indicators are up to standard, then check the wiring circuit to see if there is an open circuit, short circuit, or power outage caused by other uncertain factors. The technique to repair this failure is to replace the sensor and repair the circuit.
4. Calibration data loss prompts fault and maintenance technology
Various factors, such as Petrol Car power supply problems, sensors not being grounded, scales not being grounded, etc. Will cause calibration data to be lost. Therefore, it will affect the unstable communication fluctuation of the sensor, the live operation of the related equipment and the damage of the instrument. The basic technical point in repairing this type of fault is to first check the grounding status of the power supply. If the grounding condition is not good and needs to be repaired quickly, it is a wiring problem, and reinstallation and debugging is a component problem. There is absolutely no grounding allowed.