Dustproof Test Chamber and its working principle

Dustproof Test Chamber is defined as a chamber through which the gases pass to allow them to deposit the solid particles. It is the name of a ‘’Sand Dust Test Chamber’’. It simulates the effect of natural sand, dust, and wind climate on the products, which should be suitable for testing the shell sealing performance of products.

The chamber has a system of vertical circulation. It circulates the dust; the wind tunnel uses an advanced stainless steel plate, fan inlet and outlet, the duct bottom, and the conical hopper connection. The chamber comprises an ‘’O’’ type closed vertical dust blowing system. The airflow can flow smoothly.

Working of a Dustproof Test Chamber

A fan drives the test chamber. A small amount of dust is blown over the test specimen at a certain velocity. Test the ability of the sample to penetrate dust particles under the action of a dusty atmosphere.These dust particles should be able to defend against the blocking effects of the grit. In addition, they should be able to store and operate.

Test Objects

•  Cell phone and electrical products
•  The sealing performance in use, parts of a motorcycle, seals, and storage, and transportation of the automobile

Dust Test Grades

All the outdoor and automotive electronics have dust test requirements; they have developed a test grade. This Dust test proof is divided into 7 seven stages.
Level 0: No protection against dust
Level 1: Protection against the foreign bodies (Diameter greater than 50 mm)
Level 2: Protection against the foreign bodies (Diameter greater than 12.5 mm)
Level 3: Protection against the foreign bodies (Diameter greater than 2.5 mm)
Level 4: Protection against foreign bodies (Diameter greater than 1.00 mm)
Level 5: The amount of dust entering should not affect the operation of the whole equipment
Level 6: Completely Dust Proof material

Dustproof Test Chamber Manufacturer

There are multiple manufacturers of dust test chambers. It becomes difficult to choose the product from a good manufacturer. After comprehensive market research, LISUN GROUP is one of the best Dust Chamber Manufacturers to make your purchase much easier.

LISUN  is a good dust test chamber manufacturer. Their products are being sold in more than 150 countries worldwide. Their motto, ‘’Right Product, Right Price and Right Service’’ wins the heart of customers. They are known for their delivery of high quality products. Their quality of product is accepted by many famous companies such as UL, SGS, NIST, NIM, UNDP, Philips, OSRAM and so on.

Dustproof Testing Machine | Dust Proof Chamber

SC-015 Dustproof Test Chamber  is used for the detection of dust on the specimen. All the physical and performance tests for electronic and electrical products, lamps, electrical cabinets, electrical components, automobiles, motorcycles, and their parts are conducted through this chamber. The tests are conducted under dust climate conditions. It is a device that is used for detecting the presence of dust on the product. The Dustproof chamber is also referred to as the Sand Dust Test Chamber.

dustproof test chamber

Measurement

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.

IEC60529

Accessories

•  Depending on the size of the dust chamber, it may have a single door or two doors.
•  Talcum powder is used as a sand dust during the test.
•  The wire thickness and mesh size are according to the International Standards. Their usage is to filter the talcum powder.
•  A dust brush is present in the package, it is used to clean the dust present on the surface of the sample.
•  A small shovel is present, it is used to replace the talcum powder.

Specifications

• Temperature range: RT+10~50℃
• Standard wire warp of metal net: 50um; Standard spacing between wires: 75um
• Test dust: dry talc powder; Talc powder dosage: 2~4kg/m; Dust reduction method: free dust reduction
• Total test time: 0~999H (adjustable); vibration time: 0~999H (adjustable); timing accuracy: ±1 second
• Vacuum: 0~10Kpa (adjustable); Pumping speed: 0~4800L/H (adjustable)

• Power supply of test samples: single-phase 220V/50Hz or 100V/60Hz
• Safety protection function: leakage protection, short circuit protection
• The shell is made of domestic high-quality steel plate, and the surface is sprayed with paint, which is beautiful and durable.
• The inner box, sample rack, etc. are made of stainless steel plates to ensure that they will not rust for a long time.
• There is a transparent observation window (toughened glass material) on the door, and an LED lighting lamp is installed in the box to facilitate the observation of the internal test situation.

• There is a device for replacing dust at the bottom of the device, which can easily 100% replace the used dust.
• A special device is installed to ensure that the dust does not stick to the wall and condense. The working time of the device is adjustable, and it can work automatically and alternately.
• There is a suction pipe in the box, which can complete the vacuum action on the sample (require the sample to reserve the suction hole position).

• Dust chamber testing control system: 7-inch touch screen + Panasonic PLC. The dust blower, dust  vibration and total test time can be controlled separately. This controller has the following various arbitrary setting control functions:
1. Dust blowing time (stop, blowing): can arbitrarily choose any of continuous and periodic dust blowing time to setting;
2. Vibration time: vibration and stop vibration time are automatically alternated;
3. Preset test time: the maximum test time is 99 hours and 59 minutes;

• Heating system: The circulating air duct is equipped with a heater to heat the dust to avoid dust condensation. The heat of the muffler mica sheet heating ring is safe and stable.
• Vacuum system: equipped with vacuum pump, vacuum pressure, air filtration, flow meter, pressure regulating triplet, connecting pipe.

How does the dust chamber work?

Installation of a dust chamber is quite easy. Dust material is placed on the collector at the bottom of the chamber. The air nozzles agitate the material and create a cloud in the chamber.

What is meant by a hot and cold chamber?

Hot and cold chambers are used for performing the sample tests where the temperature of the sample should be controlled within certain limits.

How does the dust chamber remove dust?

The dust chamber removes the dust by creating an electric field. An electric precipitator is present in the dust chamber which produces a charge on the dust particles. These dust particles are then directed via an electric field.

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.

Please feel free to contact us if you need any support.
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