Is there a problem with the electronic belt scale? What is zero calibration?

Zero calibration refers to the best zero calibration value selected by the belt weigher according to the actual field data before use. The interval parameter is a scale value equivalent to one size. Chain code of belt scale refers to the best material value calculated by belt scale within the range of 40%-80% of the specified maximum flow. It is the same as the physical calibration principle, except that the accurate value of chain code verification is not as good as that of physical calibration.