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Electronic waterproofing grade JIS(IPX)
- Sep 08, 2017 -

Electronic measurement instrument of waterproof level also reflects the instrument moistureproof and dustproof ability, especially for the outdoor activities, be in high humidity or dust in the bad environment, equipment sealed and waterproof ability to ensure safe operation of the instrument and life span is of crucial importance.


To this end, IEC529 standards are developed internationally.

In order to adapt to this, the Japanese industrial standard divided the waterproof protection of electronic instruments into 10 grades, respectively, IPX1, IPX2...

Said. 


Class of protection class, meaning 0 no protection

1. The droplet I vertical falling drops have no harmful effects

2. The drop type II and vertical direction 15 "no harmful effects of falling water droplets"

The rain-proof and vertical direction of the rainfall is not harmful

The splash type is affected by any water spatter in any direction

5. The anti-jet type is directly affected by the water injection in any direction.

The water - resistant to any direction directly affected by the water injection will not enter the interior


The flood-proof type will not enter the interior even if submerged under the specified conditions

8 water medium long time immersed in certain pressure water can be used

The humidity can be used in the humidity with more than 90 % of the relative humidity

The international industrial standard waterproof registration IP and the JIS waterproof class of Japanese industry standard are close to the level of 0-8, and the IP level also provides for dust control.


Knowledge of IPxx dust proof and waterproof grade

Dust proof level (first X);

0: no protection

1: prevent large solid intrusions

2: prevent medium - sized solid intrusion

3: prevent small solids from entering the invasion

4: prevent the object from entering into the solid state with a solid mass greater than 1mm

5: prevent harmful dust accumulation

6: prevent dust from entering #

Waterproof rating (second X)

0: no protection

1: the water drops into the shell without any impact

2: when the shell tilts to 15 degrees, the water drops into the shell without any impact

3: water or rainwater does not affect the shell from 60 degrees

4: the liquid is spilt from any direction to the shell without damage

5: rinse with water without any harm

6: it can be used in the inside of the cabin

7: can withstand flooding in a short time (1m)

8: soak for a long time under certain pressure


Example: the scale or display of the instrument is IP65, indicating that the product can completely prevent dust entering and can be flushed with water without any harm.

The provisions of the IPXX grade on waterproof experiment

(1) IPX 1

Method name: vertical drop test

Test equipment: drip test device

Sample placement: the normal position of the sample is placed on a rotating sample platform with 1r/min. The distance between the top of the sample and the dripping port is not greater than 200mm

Test conditions: the water drop is 10.5mm/min

Duration: 10 min

(2) IPX 2,

The method name: tilt 15 ° drop test

Test equipment: drip test device

A sample place: make sample surface and vertical into 15 ° Angle, sample top to drop port distance not greater than 200 mm.

After each test, change another face, four times.

2 m2\5 w0 S: r

Test conditions: water drop of 30.5 mm/min

Duration: 4 x 2.5 min (10 min)

(3) IPX 3

Method name: water spray test

Test method:

A. Pipe water test

Test equipment: water splashing test device for pipe sprinkler

Place tube sample placement: select the appropriate radius, in arranging the sample mesa height diameter position, put the sample in the sample stage, make the distance from the top to the sample water is not more than 200 mm, samples not rotating.

Test conditions: water flow by arranging the blowhole is counting, every hole is 0.07 L/min, water spray, 60 ° to each side of arranging the midpoint segment within the blowhole water spray to the samples.

The sample was placed in the center of the pendulum.

Tube is placed in vertical sides is 60 °, 120 °.

Each swing (2 x 120 °) about 4 s

Test time: continuous water for 10 min

B. Sprinkler water test;

Test equipment: hand-held water splashing test device

Sample placement: the parallel distance between the test top and the hand sprinkler nozzle is between 300mm and 500mm

Test conditions: the damper should be installed with balance weight in the test, and the water flow is 10 L/min

Test time: 1 min (excluding installation area) per square meter according to the surface area of the sample, at least 5 min

(4) IPX 4

Method name: water splashing test

Test method:

A.

Pipe splashing test

Test equipment and sample placement: same as those of IPX 3 above;

Test conditions: in addition to the following conditions, all of the above IPX 3's are the same;

Water area for arranging the midpoint 90 ° to each side of segmental arc blowhole of hydraulic spray it to the samples.

The sample was placed in the center of the pendulum.

Swinging 180 ° to each side of tube is placed in vertical, a total of about 360 °.

Each swing (2 x 360 °) about 12 s

Test time: same as the above IPX 3 (i.e. 10 min).

B.

Spray water test *

Test equipment and sample placement: same as those of IPX 3 above;

Test conditions: remove the damper with balance weight on the equipment, and the rest are the same as the above IPX 3 b.

Test time: same as the above IPX 3 b, which is calculated according to the surface area of the sample shell, which is 1 min (excluding installation area) at least 5min per square meter

(5) IPX 5

Method name: water spray test!

Test equipment: internal diameter of nozzle nozzle is 6.3mm

Test conditions: the test samples were 2.5m ~ 3m apart from the nozzle, and the water flow was 12.5 L/min (750 L/h).

Test time: 1 min (excluding the installation area) of 1 min per square meter according to the surface area of the sample.

(6) IPX 6

Method name: strong water spray test;

Test equipment: diameter of nozzle nozzle is 12. 5 mm

Test conditions: the distance between the sample and the water jet was 2.5m ~ 3m, and the water flow was 100 L/min (6000 L/h).

Test time: according to the surface area of the sample, the sample size is 1 min (excluding the installation area)

(7) IPX 7

Method name: short - time immersion test

Test equipment and test conditions: water tank.

The size of the sample should be put into the tank, and the bottom of the sample will be at least 1m.

The distance from the top of the sample to the surface is at least 0.15m

Test time: 30 min

(8) IPX 8

Method name: continuous diving test;

Test equipment, test conditions and test time: by supply and demand (buy and sell) both parties agree that the severity should be higher than IPX 7.

Note: in addition, many outdoor electronic products are also emphasizing the ability to float.