1.IP Rating Scale
　　
First digit-protective solids 0 unprotected
　　
1 prevents the entry of solid objects larger than 50 mm. 2 prevent the entry of solid objects larger than 12 mm in diameter. 3 prevent the entry of solid objects larger than 2.5 mm in diameter. 4 prevent the entry of solid objects larger than 1.0 mm in diameter. 5 are dustproof.

6 are dustproof. No dust enters.
　　
Second digit-liquid-proof
　　
0. unprotected
　　
1. Prevent vertical dripping.
　　
2. Inclining up to 15° prevents dripping water.
　　
3. Prevent spraying water at an angle of 60° to the vertical.
　　
4. When the cabinet is tilted at any angle up to 15°, it prevents splashing water. 5 measures to prevent water jets from any direction
　　
6. One can withstand rough seas or strong currents.
　　
7. Prevent the effects of short-term immersion (under specified pressure and time conditions). 8 to prevent immersion (under conditions specified by the manufacturer).
　　
9k Prevent close range high-pressure and high-temperature spraying.

　　2. What is IP 69K?
　　
IP 69K is a grade from the former German standard DIN 40050-9, which expands IEC 60529, and is now the standard ISO20653, which provides protection against dust and high temperature, high-pressure water intrusion-making products with this certification ideal for use under the following conditions. Equipment must be carefully disinfected.
　　
In industries such as food processing where hygiene and cleanliness are crucial, equipment must be able to withstand strict high-pressure, high-temperature rinsing procedures.
　　
In many industries where dust and dirt can be a problem, it is important to ensure that dust does not penetrate into the product enclosure and cause it to malfunction. The lP 69K level is the highest level of protection currently available.
　　
　 3. What are the advantages of IP 69K?
　　
In environments that require extensive rinsing, such as the food processing industry, the combination of water, chemicals, high pressure and high temperatures can cause fatal damage to electronic circuits and instruments. The IP 69K rating provides complete assurance that tested equipment will be durable and durable and will meet the highest level of protection for this rating.
　　
　　4. How does the product achieve IP 69K protection level?
　　
Products with an IP 69K rating undergo a challenging series of testing to ensure they prevent penetration of high-pressure, high-temperature water and dust.
　　
　 5. How is the water intrusion test performed?
　　
The water intrusion test itself is done by placing the product on a turntable rotating at a speed of 5±1 revolutions per minute. The product is then sprayed close at a temperature of 176°F/80° C and under water pressure of 1160-1450 psi at a rate of approximately 4 gallons/16 liters per minute.
　　
The spray nozzles are kept between 4 and 6 inches from the product at various angles. According to this rigorous testing procedure, if the product is completely waterproof, the product is considered to have successfully achieved the rating.
　　
　 6. test conditions
　　
A product is on a turntable that rotates 5 times per minute. Pressure:80~100 bar
　　
Flow:14~16 liters/min Temperature:+80 ° C/ -5 ° C
　　
Distance from nozzle:100~150mm Nozzle angle:0°, 30°, 60°, 90° Test cycle:30sec/angle
　　
Note: According to the specifications of the reference standard, the longest side of the sample to be tested must be less than or equal to 250mm; if the longest side of the sample to be tested exceeds 250 mm, we can still follow the “custom test” applied to large samples. Test.