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2-2. Switches
Switch A: Push-button switch
Switch B: Push-button switch
Switch C: Push-button switch
Switch D: Water detection switch
2-3. Serial Number
(1) It does a prescribed serial number and a letter in the carved seal in the way of not disappearing
easily.
(2) The generation of the serial number
It makes a way of displaying the alphanumeric display of 6 digits of the year, the moon, 4 digits
of serials.
But, the year, it is 1 digit under the Christian era name of the era.
Also, it uses ‘O’ is used for October, ‘N’ is used for November, ‘D’ is used for December.
(3) The prescribed letter
JAPAN The English 5 letter
3. Reliability Testing
3-1. Test Items
1,Low temperature operation test
2,Hi temperature operation test
3,Temperature cycle test
4,Humidity resistance test
5,Vibration test
6,Drop test
7,Static electricity resistance test
8,Light resistance(sun-proof) test
9,Weather resistance test
10,Corrosion resistance test
11,Water pressure resistance test