1) Check whether the bottom transport protection has been removed;
2) There is an error in the standard weight during transportation, please re-correct it with the standard weight;
3) Whether the sensor is damaged due to collision during transportation.
Adjustment method:
1) If the weight is too much, you can take the battery down and put it back;
2) If the weight is less, empty everything on the tray and set it to zero.
The counting accuracy of common counting scales and weighing scales is determined by the accuracy of sampling and calculating unit weight, so the following matters should be paid attention to when selecting and operating counting scales and weighing scales:
1) According to the weighing accuracy of the counted items with single weight and small volume, in principle, the maintenance of electronic scales requires that the graduation value of the scales should be less than the single weight. For example, for an article with a single weight of 7g, a counting scale with a dividing value less than 5g should be selected. Of course, if you only have a scale with a dividing value greater than a single weight, you can combine several items into a counting unit to count, but it will also affect the counting accuracy.
2) The market research of electronic scales mentioned that the sampling weight of electronic scales should not be greater than the minimum weighing of scales (minimum weighing = maximum weighing ÷ 150, for example, the minimum weighing of a 3kg scale is 3kg÷ 150=20g, so the sampling weight should be greater than 20g. )