Product test standard of sand and dust test chamber

The scientific name of sand and dust test chamber is dustproof test chamber, which is implemented according to international national standard parameters such as GB4208-2017 Enclosure Protection Class (IP Code). It is used to test the physical and other related properties of the product by simulating the climatic conditions of natural dust. After the test, the performance of the product can be judged by verification, so as to facilitate the design, improvement, verification and delivery inspection of the product.

The main function of sand and dust test chamber is to apply to electronic and electrical products, lamps, electrical cabinets, electrical components, automobiles, motorcycles and their components, and other products, and to test whether the shell and seal of electronic and electrical products can ensure the good performance of equipment and components in the dust environment.

There are 1-6 types of sand and dust test chambers. The common test is IP56X sand and dust test level, which is also considered as a higher dust level. It is applicable to the test of IP5X and IP6X specified in the enclosure protection level standard. It is required to use dry talc powder as a medium for dust, but not sand for test. Standard requirements: talc powder shall be filtered by metal square mesh sieve. The wire diameter is 50um, and the mesh size is 75um. The dosage of talc powder is 2kg/m3. The criterion is that dust cannot be completely prevented from entering, but the amount of dust entering shall not affect the normal operation of the equipment.

What is the dust level of the sand and dust test chamber?
1. IP1X – prevent the human body (such as the palm) from accidentally contacting the parts inside the electrical appliance, and prevent the entry of larger size (diameter greater than 5mm) foreign objects.
2. IP2X – prevent human fingers from contacting the parts inside the appliance, and prevent the intrusion of foreign objects of medium size (diameter greater than 12.5mm).
3. IP3X – prevent tools, wires and similar small foreign objects with diameter or thickness greater than 2.5mm from invading and contacting parts inside the appliance.
4. IP4X – prevent tools, wires and similar small foreign objects with diameter or thickness greater than 1 cm from invading and contacting parts inside the appliance
5. IP5X – can partially prevent dust intrusion (no harmful deposits will be generated). Although it cannot completely prevent dust intrusion, the amount of dust intrusion will not affect the normal operation of electrical appliances.
6. IP6X – completely sealed to prevent the invasion of foreign objects and dust

Standard for sand and dust test chamber
1. The dust is mainly dry talc powder medium;
2. The wire diameter is 50um, and the mesh size is 75um.
3. The dosage of talc powder is 2kg/m3.
4. Temperature range: RT+10~40 ℃ (specify when ordering);
5. Vacuum meter range: 0-10Kpa (adjustable);
6. Pumping speed: 0-2400L/H (adjustable).
7. Dust suppression method of dust test box: free dust suppression;
8. Total test time: 0-999H (adjustable);
9. Vibration time: 0-999H (adjustable);

Environmental requirements for sand and dust test chamber:
Environmental conditions:
① Temperature: 5 ℃~35 ℃
② Relative humidity: ≤ 85%
③ Air pressure: 86kPa~106kPa

Power supply conditions:
① Voltage and frequency: AC220V ± 10%; 50Hz±10% ； Live line+neutral line+protective ground wire
② Installed power: 1.5kW
③ Grounding resistance of protective ground wire: the grounding resistance of protective ground wire is less than 4 Ω

Power switch condition:
1. The user is required to configure the leakage protection air switch with corresponding capacity for the equipment at the installation site, and the switch must be used independently for the equipment;
2. It is forbidden to use knife switch or power socket;
3. The leakage protection air switch shall not be more than 2 meters away from the equipment.

Use site requirements:
① Requirements for the use site of the sand and dust laboratory: the ground is flat and the ground bearing capacity is not less than 200kg/m2;
② The site of the sand and dust test room is well ventilated, and there is no strong vibration, strong electromagnetic field effect and corrosive substances such as flammable and explosive around;
③ Proper use and maintenance space shall be reserved around the sand and dust test room;

The sand and dust test chamber has two test methods. The first is that when the air pressure in the chamber is lower than the ambient atmospheric pressure, due to the thermal cycle effect, the vacuum pump is used to keep the air pressure lower than the atmospheric pressure, and the air extraction should be connected to the hole specially set for the test.

The second type: when the air pressure in the shell is the same as the ambient atmospheric pressure, the tested shell is placed in the test box according to the normal working position, but not connected to the vacuum pump. The drain hole that is opened under normal conditions should remain open during the test, and the test duration is 8 hours.

What is the importance of sand and dust test chamber procurement?
The purchase of sand and dust test chamber is also a relatively concerned issue for the purchaser. Whether it is the purchase of rain test chamber, dust test chamber, or high temperature and high pressure spray chamber, it is also a relatively big thing. So why? I don’t know if you have found that there are many kinds of environmental test boxes, which are often dazzling and often confusing in appearance.

There are many problems to be considered when selecting the sand and dust test chamber, such as the quality of equipment, technology, manufacturing technology of the manufacturer, or price.
First of all, the equipment is selected correctly. For the test of products produced by the company in the future, you can test as much as you want. Secondly, it can improve the competitiveness of the company’s products and make users less affected by a large amount of dust when using the product. In this way, the quality of the company’s products has improved, and there is also a hidden factor that has improved the company’s popularity.

There is also the importance of sand and dust test chamber procurement, such as the requirements of functional parameters, protection grade, size of specifications, etc.

LISUN lauched SC-015 Dust-proof Test Chamber (Sand Dust Chamber) is applied to physical and other related performance tests for electronic and electrical products, lamps, electrical cabinets, electrical components, automobiles, motorcycles and their parts and other products under simulated dust climate conditions. After the measurement, it is judged whether the performance of the product meets the requirements through verification, so as to facilitate the design, improvement, verification and factory inspection of the product. Comply meets IEC60529:1989 +A1:1999 +A2: 2013 <Degrees of protection provided by enclosures (IP Code)>,IEC60598-1,  GB2423.37-89 (Test L: dust test methods), GB4208, GB/T 4942.2-93(protective casing grade of low-voltage apparatus), GB7000.1 <Luminaires Part 1: General Requirements and Tests> 9.2.1, 9.2.2 and Figure 6, DIN40050 and IP5K0. The dust test chamber is applicable to the IP5X and IP6X dustproof test of the products.

Dustproof Testing Machine SC-015

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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