1. Before the shift, check whether the weighing device is in normal working state. If there is blockage or other phenomenon affecting the weighing accuracy, it should be eliminated in time.

2. Check whether the wiring of the electrical part is correct and solid, and whether the electrical box housing is solid and grounded.

3. During operation, check whether all operating parts are in normal operation, whether the conveyor belt is deviated, whether there is any foreign matter between the belt and the driven wheel, and stop immediately if there is any abnormal situation.

4. Each movable part shall be filled with butter, and the belt roller shall be removed for refueling once a year.

5, in the maintenance of the machine, must stop and cut off the main power supply.

6. Batching control instrument should be equipped with rain and sun protection facilities.

7. In order to prevent sand and stones from mixing with bars, big stones and other sundries, so as not to damage the conveyor belt.

8. In order to ensure the safety of the batching controller, do not use it under severe weather conditions such as heavy rain and thunder, turn off the main power supply, and remove the connection between the sensor and the batching controller.

9. Supply voltage fluctuation must be less than -10% ~ +5%.

10. The weighing system shall be calibrated at least every year according to the nominal method in the specification of batching controller to ensure the accuracy of weighing.