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Jasper Electronics Co.,Ltd

Add:2th Floor, No.3, Xinyuan North #2 Road, 
Ludong, Humen, Dongguan 523935, China

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Appearance inspection standard about the membrane switch

- Apr 14, 2018 -

The following simple introductionMembrane switchAppearance inspection standard, the hope can help you!

  1, the inspection methods: visual inspection (8 times the magnifying glass can be used when necessary).

  2, lighting conditions: overhead lighting, brightness 500 Chrysler division.

  3, visual Angle: the parts is fixed, and the level of 45 ° horizontally and the line of sight with the vertical, parts or reflection.

  4, visual time: the inspection area, 0.2 seconds per 1 square inch check, check at least 5 seconds per part.

  5, visual range: 45 cm.

  6, check the control board: start with a white background, and then with a black background for control board to check, control board in the parts after 2.5 cm to 12 cm.

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