Explain working of dustproof test chamber

To evaluate a product’s shell sealing ability by the International Protocol for the Testing of Shells, the “Dustproof test chamber” is utilized to mimic the detrimental effects of natural sand, dust, and wind conditions (IP5X and IP6X). It is sometimes referred to as a dust and sand test chamber.
The SC-015 dust-free test chamber has a vertical airflow and uses a conical hopper; the wind tunnel is built of high-quality stainless steel, and the duct bottom is linked to the hopper. The air duct is connected to the fan’s intake and output. A single, powerful, and quiet centrifugal fan regulates the airflow.
The dust-free testing chamber is ideal for evaluating the effectiveness of the product’s shell in terms of its ability to seal. Its primary purpose is to assess the shell’s compliance with the protection standard’s requirements for the IP5X and IP6X. Its primary goal is to replicate the effects of a sandstorm on items such as locksets, automotive components, seals, and electrical instruments, among other things.
Incorporate some protective screening and sand and dust precautions into the overall installation and application of the equipment throughout the test. Enhance the product’s capacity to withstand and prevent damage from dust.
Communication devices, car components (including rearview mirror, acoustics, electronics, lighting, lamps, motorcycle lights, and rearview mirror), outdoor lighting, and signal devices are all candidates for dustproof performance and IP dustproof grade testing.
A dust test chamber is a useful tool for determining how well a sample can withstand the effects of sand and dust, including being unaffected by the wear or obstruction of big sand particles with sharp edges that would otherwise lower performance, efficiency, dependability, and maintainability. Vehicle components such as lights, instrumentation, electrical dust covers, steering systems, door locks, and more may all be put through their paces in a sand and dust test chamber.

Working principle of the dust test chamber
Inside the airtight and dustproof test chamber SC-015 is a fan that acts as the principal motor for movement. After that, a certain amount of dust is blown over the top of the test specimen at a pace that has been specified in advance.
The purpose of this experiment is to discover whether or not these test specimens have the capacity to tolerate the penetration of dust particles while being exposed to the action of dry sand or dust-filled atmospheres.
Even though dust protection descriptors range from 1 to 6 according to the IEC 60529 test standard and the GB/T4208 enclosure protection grade (IP code), only devices rated IP 5X or IP 6X pass these tests. The dust in the standard for 1 and 2 necessitates that the test must not penetrate the shell fully.
That is, the sphere’s diameter can’t be bigger than the hole in the shell. The tested dust cannot penetrate the shell in cases 3 and 4. This indicates that there is a very low degree of security in places.

Figure 1: Dustproof test chamber

During the process
1) Technicians use the dustproof test chamber to examine samples of the product.
2) Inside the chamber, the dust is blown at an upward angle.
3) At the chamber’s bottom, dust particles fall into a trough or other collecting device.
4) At regular intervals, the material is agitated by having air blown through nozzles onto it. The dust cloud disperses when the agitating procedure is complete.
5) Mil-Std 810 is a blowing dust experiment that is a focal point for every sand and dust test chamber manufacturer. It’s perfect for field dust testing conditions.
6) In this case, the system consists of a small wind tunnel and particles in a controlled flow. Customers looking for a dependable sand and dust test chamber provider often choose the settling dust procedure. When comparing the two, the former is more manageable.

Why do We Need the IEC 60529 Sand and Dust Tests?
Low-voltage electronics, such as lights, fans, motors, instruments, and meters, as well as other electronic items, are routinely subjected to a sand and dust test to simulate real-world conditions. It tests the sealing performance of components in sand and dust, storage, and transit and applies the results to mobile phones, electrical devices, vehicle and motorcycle parts, and seals.
The dustproof test is appropriate for the inspection of electrical and electronic products, as well as parts for automobiles and motorcycles, seals in sand and dust environments to prevent sand and dust from entering the seal and shell, and the testing method to determine the impact that dust suspended in the air has on the product.
The performance of electronic and electrical devices, components for automobiles and motorcycles, and seals are put to the “dust test” to see how they would fare while used, stored, or transported in an environment containing sandy dust.

Principles and Test Equipment for IEC 60529 dustproof chamber
A dustproof test chamber SC-015 is used to conduct the sand and dust test. Testing the product’s enclosure sealing ability in the IEC 60529 sand and dust test chamber is a good idea since it replicates the damaging effects of wind and sand on the product. For the most part, it’s utilized to ensure that enclosures meet the standards set out by the enclosure protection level standard.

The premise behind the dustproof test chamber is to expose test samples to dry sand or a dust-filled environment by having a fan blow a controlled amount of sand and dust over the sample’s surface at a controlled flow rate—alternatively, the capacity to store data and carry out operations.
The vertically rotating airflow of the dust-loaded equipment makes it possible to reuse the dust from previous tests. The stainless steel used to construct the air duct was sourced from abroad. The air duct exit is connected directly to the bottom of the duct and the cone-shaped hopper interface.
To ensure that the airflow is consistent and that the dust is distributed as widely as possible, it is necessary to join the diffuser at the top of the working chamber to the body of the functional chamber at the proper location to create an “O”-shaped closed vertical dust-blowing circulation system.
A single high-power, low-noise centrifugal fan is utilized in the sand and dust test chamber, with its speed modified via a frequency converter.

Innovative things in the dustproof test chamber
Test Standards
You may meet and even surpass industry testing requirements with the use of accelerated and long-lasting quality testing chambers. We utilize our natural and artificial chambers to conduct durability tests on aircraft components, military equipment, consumer electronics, and other products by federal regulations.
For creative projects involving vehicles and electrical components evaluating their security against dust climate, our Dust Chambers are marvelously predicted to replicate a buildup-filled atmosphere in a small workspace according to international testing regulations. These sand and buildup chamber machines, by noticeable rules, decide on the diversion of buildup in a contained setting:

Limit
These items are made by hand and finished with the client’s specific preferences. However, our standard models open next to honed procedures but with varying constraints based on the particular testing requirements.

Improvement
Top-tier components are used in the construction of our Dustproof testing devices. The exterior may be done with CRCA Sheet, Stainless Steel (304, 316, and 316 L), or Galvanized sheet, depending on the client’s preference. The inner chamber is constructed from polished, treated steel.
You can easily lock and secure the door thanks to a much smaller switch than you may assume. A solid glass discrimination window, a flexible wiper, and a swiveling handle at the front door.

Industry
A dust plate made of tempered steel provides a sturdy platform for debris and allows dust to settle freely. These plates are easily swapped out as necessary.

Safety features
These units provide a secure environment for the models and the supervisors to operate in thanks to their abundance of features, such as overload, Emergency stop, doorway open, and short out.

Optional Accessories:
Casters, a viewing chamber lamp, window wipers, etc., are some of the standard perks of this unit.
You may put your pieces and possessions through their insurance coverage against dust particles and see how they fare in a dust test chamber. Tests are conducted in settling dust test chambers to ensure compliance with the standard.
Each model is tested to ensure dust and debris don’t make their way into your office or lab. Our buildup test chambers have applications in various industries, including those concerned with electrical components, lighting, social events, the armed forces, and even security.

Sand and Dust Test Chamber Test rule:
The access to the bottom half of the electrical control area is via a dustproof test chamber with glass—powder sand accumulation in the test chamber’s base holder.
Direct air from the moving fan into the 75-micron square hole in the top of the modified holder, where the infant powder is stored in the upper association studio. The layout of the experimental environment high-density dust test model.

Dustproof Test Chamber Structure:
An imported touchscreen programmable controller handles dust-blowing motors, dust vibration, and test duration for the Buildup Test Device. This chamber’s stunning entryway has a lock mechanism and a glass observation window—both light and a buildup brush help to reveal at least some of the chamber’s interior.
The test chamber is dustproof, with a powerful buildup blowing mechanism and a vibrator to verify that each blowing is consistent.
A high-oblige motor and a frequency converter in the air streamer provide more precise control over the air volume.
An enormously wide, solidified steel air pipe with a warming apparatus on top would preheat and dry off the test chamber dust.
Test Facility for Construction Solid construction, anti-shock lever, simple operation.
Exacting electronic sensors for both temperature and velocity have been imported from the United States.
The test apparatus for the differential squeezing factor may adjust the siphoning rate energetically in response to the test’s needs.
The left chamber has a 450mm test hole with a port cover and a silica gel chock plug. A third-party testing apparatus may be connected to the port in this way.
It is equipped with swivel wheels that include braking components and fixed foot pads to make moving and adjusting the machine’s height easier.
LISUN provides the best test chamber for creating artificial environments.

Do you are familiar with the sand dust test chamber?
It may evaluate the shell’s fixing performance in the sand and accumulation test chamber. It is used mostly for the lower two categories, and its security standard is not completely fixed in stone. Locksets, car components, seals, and electrical instruments were all damaged to simulate the effects of a dust storm.
During testing, protective screening, sand, and a buildup may be useful for the overall equipment base and application. Strengthen its resistance to and protection against construction.

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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