| 2.For improvement of detecting accuracy |
| We recommend to detect 2 times for improvement of detecting accuracy. At the same time, please consider the machine characteristic. |
| If the detecting characteristic of first needle detector and second needle detector is not same |
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| If first machine has strong detecting ability near the belt surface, it is no necessary to turn direction of the goods on second machine that has strong detecting ability around upper side of detecting area on a belt. |
| If the detecting characteristic of first needle detector and second needle detector is same |
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| If first machine and second machine are same type, it is more exact to turn The goods 90 °and turn the goods upside down on the table |
