1、 Product Introduction:
The Military standard sand and dust testing machine, also known as the military standard sand and dust testing box, meets the national standard of the People's Republic of China for enclosure protection level (IP code) GB4208-93 and can also meet IEC-529, GB2423、37-89,GJB150、12,GB10485,GB7000、 1-7000, 6-1996 Safety requirements and tests for lighting fixtures.

2、 Technical specifications:

1. Working chamber volume: 800X800X800

2. Temperature control: 20 ° C~80 ° C

3. Humidity:& lt;30%R、H

4. Sand disc size: 150um~850um

5. Gray grinding size:& lt;149um

6. Spray ring radius R375mm or R500mm

7. Pipe diameter 16mm

8. Spray aperture 0, 4mm

9. Aperture spacing 50mm

10. Grinding size: Silica powder

3、 Structure, Material, and Characteristics

1. The shell inside the test chamber is made of 3042B stainless steel

2. The outer shell of the test box is made of cold-rolled sheet with electrostatic spraying

3. The dust blowing motor is a specially designed stainless steel shell with strong sealing, low noise, and High wind speed

4. The inner shell of the box is funnel-shaped, with adjustable vibration period, and dust can freely fly and fall to gather next to the blowing hole

5. There is an observation window on the box door, which can observe the status of the sample inside the box when the dust blowing stops

Control system:

1. Equipped with a German original M ö ller programmable controller

2. Equipped with time and status display

3. Parameter settings are simple and do not require entering the program menu. You can directly enter the parameter menu to modify them

4. Controllable total test time, intermittent time and cycle of dust blowing, and intermittent time of sample power supply

5. The temperature is controlled by RKC and DC temperature controllers, which can be adjusted from RT+5 ℃ to 60 ℃ to prevent the influence of dust and moisture in the air inside the test chamber. At the same time, the humidity inside the test chamber can be controlled below 50% R.H

6. The test tank and control cabinet are integrated, with casters installed at the bottom. Other systems are concealed, which is aesthetically pleasing and easy to install

7. The sample dust can be directly added to the box, and only the valve at the bottom of the funnel of the box needs to be opened for replacement, which can be discharged in a short time, saving the trouble of manual material replacement for operators

Air velocity:

1. Blowing and grinding amount: 10, 6+/-7g/m ^ 3V grinding=0, 5~8, 9m/s

2. Sand cutting amount: 2, 2+/-0, 5g/m ^ 3V sand=18-29m/s

Testing time:

1. Grey grinding: maximum continuous working time of 6 hours

2. Sand disc: minimum continuous working time of 1-5 hours

Protector:

1. Temperature protection inside the box to prevent uncontrolled temperature control from affecting the test

2. Three phase voltage under phase, phase sequence protection to prevent reverse operation of dust blowing fan

3. Install a time accumulator to prevent accidental interruption of the test without knowing the point of interruption