The waterproof grade of the electronic measuring instrument reflects the ability of the instrument to prevent moisture and dust, especially in the bad environment of high humidity or dust. The sealing and waterproof ability of the instrument is very important to ensure the safe operation and life of the instrument. To this end, IEC529 standards are formulated internationally. In order to adapt to this, Japan's industrial standards will be divided into 10 levels of electronic instrument waterproof protection, respectively, IPX1, IPX2... Express。
The meaning of the category of protection
1 drip proof I vertical drop drops have no harmful effects.
2 there is no harmful effect on the droplet falling in the range of 15.
3 rain prevention and vertical direction within 60 degrees of rainfall has no harmful effects.
4 splash resistance is not affected by any splash in any direction.
5 no direct impact on the jet is directly affected by the injection of water.
6 water resistant direct direction will not be injected directly into the water.
7 the anti immersion type will not enter the interior even if it is immersed in water under the prescribed conditions.
8 water immersed in a certain pressure for a long time can still be used in water.
9 the moisture proof type can be used as humidity as below 90%.
Folding IPxx level
The international industrial standard waterproofing grade IP is close to the JIS standard of Japanese industrial standard. The grade 9 is 0-8, and the IP grade also provides for dust prevention.
Dustproof and waterproof
The protection level is IP / x grade recommended by the International Electrotechnical Commission (IEC). Different installation sites are of different grades. Specifically, we can refer to the following instructions. In the grade standard, "X" is a two digit number, the first one represents the level of protection for the solid, and the second represents the protection level of the liquid. There are 7 grades of solid protection, expressed in 0-6, and 9 levels in liquid protection, respectively, 0-8.
0: no protection
1: prevent large solid intrusion
2: prevent medium size solid invasion
3: prevent small solids from entering intrusion
4: prevent solid from entering 1mm.
5: to prevent the accumulation of harmful dust
6: completely prevent dust entry
0: no protection
1: the drop of water drops into the shell without influence
2: when the shell tilts to 15 degrees, droplet dripping into the shell has no effect.
3: water or rain has no effect from 60 corners to the shell.
4: the liquid splashed into any case in any direction without damage.
5: rinse with water without any harm
6: can be used in the cabin environment
7: water resistant in short time (1m)
8: soak the water for a long time under certain pressure