What factors will affect the accuracy of the checkweigher
u200du200d (1) Intrinsic factors of the tested item 1. The characteristics of the tested item include liquid, solid and powder. When the liquid item enters the weighing platform, because the conveyor belt of the weighing platform is moving, the shaking of the liquid inside will cause the change of the center of gravity of the item; Long, the system needs to enable secondary filtering to resist vibration; when the powder item enters the weighing platform, the powder in the package may also move, which will also cause the center of gravity of the item to change. 2. The packaging of the tested item includes bags, cans and bottles. The size of the weight between the same packaging, the level of the bottom of cans and bottles, the diameter of the bottom, and the height will affect the vibration generated when the item to be tested enters the weighing platform. 3. The raw materials of the tested items, transparent items and reflective items will affect the induction of the photoelectric switch; however, we can use the non-photoelectric weight recognition mode to check the weight, which can effectively avoid this trouble. 4. The weight of the tested item, the heavier the item, the lower the accuracy. 5. The speed of the item to be tested, the faster the belt speed, the shorter the reading time of the system, and the greater the impact on the accuracy; the number of detected items per minute will also affect the accuracy. 6. The shape of the object to be tested, the uneven bottom surface of the special-shaped object, and the vibration when entering the weighing platform has a great impact on the accuracy. (2) Use environmental factors 1. The temperature and humidity of the use environment; 2. The vibration and air flow of the ground, the vicinity of machines with large vibrations, and the air flow ports of fans and air conditioners are not suitable for automatic checkweighers; 3. Static electricity and electromagnetic If it is disturbed, the equipment should be grounded, and it should be separated from the high-power equipment and power supply system; 4. Protective measures should be taken in places with large dust and corrosive liquids. (3) Human factors 1. Improper parameter setting during use; 2. The distance between the speed-up section, weighing section and removal section of the machine is too large or too small; 3. The weighing platform is not level; 4. The conveyor belt is too loose or too large 5. The motor wire and sensor wire are not tied properly; 6. The sensor is overloaded and damaged; 7. The reflector of the photoelectric switch is not cleaned in time. u200du200d
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