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How to calculate the IP protection level of the level gauge? Come in and check it out

Author:Vacorda    Source:www.vacorda.com    Date: 2020-09-08 17:52:38
When it comes to IP protection grade, some friends may not be unfamiliar. Why do you say that?

In fact, IP protection grades are not only used to weigh the protection specifications of industrial instruments, but also often used by home appliance manufacturers to improve their product adherence. They are like distribution boxes, start-stop control switches, bathroom lamps, outdoor switches, etc. It is necessary to have responsive waterproof and dustproof measures to ensure the operation of these appliances.

Waterproof switch

Is it right?

Although, in the industrial manufacturing environment, the use of many instruments and meters will touch the IP protection level, like a tuning fork level switch, a tuning fork level switch, a vibrating rod level switch, a magnetic flap level gauge, and a rotary resistance level switch. and many more.

So, in the end, is it true that the higher the IP protection level, the stronger the protection capability of the instrument? Continue to pull down, we will explore the final consequences.


The IP (International Protection) protection rating is issued by the IEC (International Electrotechnical Commission). The IP protection grade is formed by two Arabic numerals. The first number represents the degree of protection against dust and foreign objects, and the second number indicates the degree of airtightness of the meter against moisture and water intrusion.

Group, among the wealth instruments, the highest protection grade is IP68, and IP54 belongs to a relatively low protection grade, that is, the larger the number, the higher the protection grade of the instrument.

The meaning of the first number

0 —— No protection.

1 —— Prevent the intrusion of solids larger than 50mm; prevent the human body (such as the palm of the hand) from entering the instrument due to accidents; guard against the intrusion of foreign objects of larger size (diameter greater than 50mm).

2 —— Guard against the intrusion of solids larger than 12mm; guard against the intrusion of foreign objects of medium size (12mm larger in diameter) against the whole machine inside the instrument with human fingers.

Three-guard against the intrusion of solids larger than 2.5mm; guard against the intrusion of things with a diameter or thickness greater than 2.5mm, wires or similar small objects and contact the whole machine inside the instrument.

4 —— Prevent the intrusion of solids larger than 1.0mm; prevent the intrusion of things with a diameter or thickness larger than 1.0mm, wires or similar small objects and contact the whole machine inside the instrument.

5 —— Fully guard against the intrusion of foreign objects, except for dust, but the intruding dust will not affect the abnormal operation of the instrument.

6 —— Fully guard against the intrusion of foreign objects and collect dust.


Factory shrouded in dust


The meaning of the second number

0 —— No protection.

1-Prevent the intrusion of water droplets. Vertically dripping water droplets (such as melted water) will not greatly affect the meter.

2 —— It can still prevent the intrusion of water droplets when it is skewed by 15 degrees. When the meter is skewed from vertical to 15 degrees, the water droplets will not have a great influence on the meter.

Three-prevent the intrusion of spray water. Prevent rain, or prevent the angle between the vertical and the inclined being less than 60 degrees. The sprayed water enters the meter to form slack.

4-Prevent splash water intrusion. Prevent splashing water from all tendencies to enter the meter to form slack.

5-Prevent water jet intrusion. Prevent the water from the nozzles from entering the meter to form slack.

6-Guard against the intrusion of big waves. Beware of slack caused by the invasion of big waves (such as on the ship's splint).
7 —— Prevent water intrusion during flooding. The meter is immersed in the water for a certain time or the water pressure is within a certain specification as follows to ensure that no slack is formed due to water ingress.

8 —— Prevent water intrusion while floating. The instrument floats continuously under the specified water pressure, which can ensure that no slack is formed due to water ingress.


IP grade protection testing machine

In short, the higher the IP protection grade, the stronger the tightness of the instrument, and the safer and more reliable it is to operate in harsh working conditions.

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