I. Usage:
The sand and dust test chamber is suitable for dust-proof and dust resistance tests on various automotive parts and electronic appliances. Automotive parts include car lamps, door locks, electrical systems, lamps, instruments, dust covers, steering systems, etc. Electronic appliances include mobile phones, computers and household appliances, etc.
Two: Model and Specification
1. Model
2. Temperature adjustment range: RT+5℃ to 60℃
3. Standard wire diameter of metal mesh: 50 μ m
4. Wind speed: ≥7.5/s
5. Standard wire diameter of the test chamber screen: 75 to 100 μ m
6. The dust-blowing cycle (intermittent control) is adjustable
7. Dust consumption: 2kg to 4kg per 3
8. Test power supply: It can be equipped with DC12V, DC24V, and AC220V
9. Studio dimensions: 800×800×800mm (width * depth * height)
10. The outer box dimensions are approximately: 1250×1150×1700mm (width * depth * height)
Three: Equipment Usage environment
Temperature: 15℃ to 35℃
2. Relative humidity: ∠85%RH
3. There should be no strong vibration or strong electromagnetic field influence around
4. There should be no high-concentration dust or corrosive substances around
5. No direct sunlight or direct radiation from other heat sources
6. There should be no strong air flow around. When forced air flow is required in the surrounding area, the air flow should not blow directly onto the box
7. The test chamber should be placed stably and kept level
8. The installation site should have good ventilation
9. Good grounding
Four: Structure, Materials and Characteristics
The inner shell of the test chamber is made of 3042B stainless steel
2. The shell of the test chamber is made of high-quality stainless steel plate
3. The dust-blowing motor features a special stainless steel casing, which has strong sealing performance, low noise and high wind speed
4. The inner shell of the box is funnel-shaped, with adjustable vibration periods. Dust freely flies and settles beside the air holes
5. An observation window is installed on the box door, allowing the state of the samples inside the box to be observed when the dust blowing stops
Five: Control System
It is equipped with an original programmable controller from West Germany
2. Parameter Settings are simple. There is no need to enter the program menu. You can directly enter the parameter menu to make modifications
3. The total time of the test, the interval time of dust blowing and the cycle of dust blowing can be controlled
4. The temperature is controlled by an RKCDC type temperature controller, which can be adjusted within the range of RT+5 to 60℃, preventing the dust inside the chamber from getting damp due to moisture in the air
5. The test chamber and control cabinet are integrated as one unit, with casters installed at the bottom. Other systems are concealed, presenting a beautiful and elegant appearance
V. Safety Protection Devices
1. Temperature protection inside the box to prevent temperature control from losing control and affecting the test
2. Three-phase voltage under-phase and phase sequence protection to prevent the dust-blowing fan from working in reverse
Six. Meet the standards
IEC-529 Dust protection test method
2. GB4208-93 Dust Protection Test Method
3. GB2423.37-89 Dust Protection Test Method
4. GJB150.12 Dust-proof Test Method