The human factor is the main factor affecting the accuracy of the speed control belt scale . It refers to the factors that affect the measurement accuracy due to the use and management of the speed control belt scale. There are mainly the following aspects: First, the belt runs off. The deviation of the belt causes the pressure of the belt symmetrical weight sensor to change, causing an error. The reasons for the belt deviation are generally as follows: (1) The tension devices on both sides are not balanced. It means that the tensioning screws on both sides of the belt scale are inconsistently adjusted, one side is loose, one side is tight, and manual online adjustment can be solved; (2) Partial sticking of the tail roller. The material enters the reverse side of the belt and is enriched at the tail wheel drum, which can easily cause such deviation. It can be solved by timely cleaning the accumulated material, repairing the internal cleaner, checking the retaining plate and reducing the material blank height difference. (3) The material blanking point is not correct. If the blanking point is not positive, the belt may be deflected, which can be solved by changing the position of the blanking point. Second, the belt adhesive. The viscous material is easy to bond on the belt during the conveying process. If it is not cleaned in time, the large piece will stick to the belt and the weight of the belt scale will change continuously, which will cause the belt scale to be inaccurate. This situation is mainly solved by overhauling the external sweeper, and the conditions allow it to be solved by optimizing the ingredients to reduce the viscosity of the material. Third, the belt scale accessories are damaged. This type mainly has cross aging or fracture, signal line failure, belt roller wear, and belt idler running. Such factors generally have the characteristics of instant reflection. In the event that such data changes greatly in an instant, it should be checked one by one immediately, and the problem can be eliminated by promptly replacing the spare parts. Fourth, the correction of the zero and slope coefficient is not timely. The speed belt scale is a kind of dynamic scale. It is inevitable to change during the process of conveying materials. The zero point and slope coefficient of the belt scale will also change with each other. Therefore, the zero point and slope coefficient should be corrected in time to ensure the accuracy of weighing. It can generally be done by a combination of periodic system corrections and sporadic individual corrections. Regular system correction refers to the formulation of the batching scale verification plan with reference to the planned maintenance period of the equipment to ensure that each equipment inspection cycle performs a system check on the belt scale; the sporadic individual correction is mainly for the electronic scale in which the temporary misalignment accident occurs, if it is lost The quasi-cause is caused by the key metering components of the belt scale, and the relevant parameters must be corrected in time to resume use. Tetanus Vaccine,Hepatitis B Vaccine For Adults,Tetanus Booster,Td Vaccine FOSHAN PHARMA CO., LTD. , https://www.foshanmedicine.com