Analysis and Research of Dustproof Testing of Dustproof Chamber

I. Dustproof Chamber introduction
The Dustproof Chamber is suitable for dust and dust-proof testing of various automotive parts, testing parts including headlights, instruments, electrical dust-proof sleeves, steering systems, door locks, external lighting and signal devices and automotive lamp shells, which is A necessary test equipment for aviation, automobiles, home appliances, scientific research and other fields. The equipment is designed reasonably, easy to operate and maintain, and all indicators are in accordance with national standards. The Shanghai Lishan SC-015 series dust-proof test equipment is used to detect the sealing performance of the product shell, mainly used in the test specified in the shell protection grade standard IP5X and IP6X.

LISUN 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. Verify whether the performance of the product meets the requirements through verification after the measurement, so as to facilitate the design, improvement, verification and factory inspection of the product. Fully 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.

SC-015 Dustproof test chamber

II. IP Dustproof Chamber protection level
IP Dustproof is mainly for the equipment shell, which is divided into six levels internationally:
IP1X-Prevent body (such as hand) from accidental contact with internal components of electrical appliances, and prevent larger size (diameter larger than 5mm) foreign objects from entering.
IP2X-Prevent human fingers from touching the internal components of electrical appliances and prevent medium size (diameter larger than 12.5mm) foreign objects from invading.
IP3X-Prevent tools, wires and other small foreign objects with a diameter or thickness greater than 2.5mm from entering and touching the internal components of electrical appliances.
IP4X-Prevent tools, wires and other small foreign objects with a diameter or thickness greater than 1CM from entering and touching the internal components of electrical appliances.
IP5X-Partially prevent dust from entering (no harmful deposits will be produced), although it can not completely prevent the invasion of dust, but the amount of dust invasion will not affect the normal operation of electrical appliances.
IP6X-Fully sealed to prevent foreign objects and dust from entering.

III. Features of IP Dustproof Chamber
1. The device has an air flow of dust-carrying vertical circulation. The test dust powder can be reused cyclically;
2. The device itself has good sealing performance, and the test can be clearly observed during the test;
3. The large observation window is equipped with a lighting lamp to keep the box bright, and the embedded tempered glass of the heating body can observe the status of the box clearly at any time;
4. Use imported programmable controller to effectively guarantee the test runs according to the standard; the dust fan runs alternately, and the vibration and stop vibration time runs alternately;
5. Vacuum pressure can be indicated and adjusted;
6. The programmable controller has four output points to complete four different program execution times at the same time;
7. Each output point of the programmable controller has two time-controlled (i.e., start time and stop time);
8. The programmable controller can individually or collectively control the time of the blower, dust vibration and total test time; the maximum test time is 99 hours 59 minutes.

IV. IP Dustproof Chamber use conditions
1. Installation site: flat ground and good ventilation;
2. No strong vibration around the equipment;
3. No strong electromagnetic field around the equipment;
4. No flammable, explosive and corrosive substances around the equipment; 5. Ambient temperature: 5 °C -25 °C;
6. Relative humidity: ≤60%;
7. Air pressure: 86kPa-106kPa;
8. Requirements for storage environment: when the equipment is not working, the environmental temperature should be kept at 0°C-45°C.

V. Common failures of IP Dustproof Chamber
1. Dust-proof box power-on instrument not bright no power: Check whether the power supply is normal, check whether the phase sequence is normal, whether there is zero line;
2. No dust blowing: Check whether the blower is working normally or the fan is too small, check whether the dust is dry;
3. No vibration: Check whether the vibration motor is normal;
4. Dust-proof box should have a dedicated manager to operate, and regularly clean up the box body and blower fan, regularly maintenance and maintenance should have professionals;
5. In order to stably exert the function and performance of the test box, the ambient temperature should be within 15-25°C, and the relative humidity should be less than 85%.
6. The distance between adjacent walls or objects. The environmental temperature of the installation site must not change abruptly.
7. Dust-proof box without power: Check whether the power supply is normal, check whether the phase sequence is normal, whether there is zero line.

VI. IP Dustproof Chamber dust proof result judgment criteria
a) Acceptance condition for the first digit 5: After the dust-proof box test, observe the amount and location of Talcum powder deposition. If it is the same as other dust, it is insufficient to affect the normal operation or safety of the equipment, which is considered qualified. Unless the relevant product standards specify exceptions, there should be no dust deposition at the possible creeping electric distance that may cause electric markings;
b) Acceptance condition for the first digit 6: After the dust-proof box test, there is no obvious dust deposition in the shell, which is considered qualified.

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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