How to set the setting value of the checkweigher
The checkweigher machine used for weight inspection needs to set the policy weight value (Target Weight) and limit value (Limit) of the weighing product, and then obtain the weight zone (Weight Zone), so that qualified products, Sorting of non-conforming products. Checkweighers generally used for weight inspection are set according to three-weight partitions or five-weight partitions, which are taken out of context. Three-weight partitions and five-weight partitions have three and five weight partitions respectively. The setting of policy weight value: The weight indicated on the product packaging is the amount paid by the product customer, which is generally called 'label weight'. Under normal circumstances, except for the tare weight, the policy weight value must be set equal to Or slightly higher than the label weight, to ensure that the average weight of the same batch of products is not less than the label weight, in order to meet the relevant regulations on product packaging requirements. The quantity of the average weight of a batch of products exceeding the label weight is called 'overfill, GivewayThe quantity of 'overfill' should be set prudently. If through the test, the weight data of the product packaging of the feeding equipment is close to the ideal normal distribution, and the feeding amount of the feeding equipment does not change much, it is recommended to confirm by the label weight (plus the product tare value) plus 2 times the standard deviation of the checkweigher Policy weight value. In the process of practical application, if you feel that the policy weight value is inappropriate, you can also adjust it in a small range according to the site conditions. If the control accuracy of the feeding amount of the feeding equipment is high and the feeding amount changes little, then the standard deviation value of the checkweigher is also small, and the difference between the policy weight value set higher than the label weight plus the product tare value is also smaller. The method of setting the limit value: 1. Set according to the allowable shortage 2. Set according to the tolerance value 3. Set the checkweigher used for weight inspection according to the working conditions on site. Setting, which is related to the normal work of the checkweigher, is also related to reducing the amount of overfill and improving the economic benefits of the enterprise, so it should be paid attention to by the work protection personnel of the checkweigher.
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