Chongqing - Sand and dust test chamber

SandDust test chamberTECHNICAL AGREEMENT

1、 Technical parameters:

1. Temperature regulation range: RT+5 ℃~60 ℃ (adjustable)

2. Metal mesh nominal wire diameter: 50um

3. Wind speed: ≥ 0-3.5m/s

4. Test box screen nominal wire diameter: 75-100 ū m (100-200 mesh)

5. Dust blowing cycle (intermittent control) adjustable

6. Talc powder dosage: 2kg~4kg/m3

7. Sample electrical material port

8. Including vacuum pump and connectors

2、 Structure, Material, and Characteristics:

1. The shell inside the test chamber is made of 304 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 suction 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

3、 Configuration of electrical control system:

1. Shanghai Dedong Dustproof Motor

2. Schneider inverter

3. Omron intermediate relay

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

5. The model is EASY412-AC-RC, with time and status display

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

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

8. 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 during the test inside the box. At the same time, the humidity inside the test box can be controlled below 50% R · H

9. The test tank and control cabinet are integrated, while other systems are concealed, aesthetically pleasing, and easy to install

10. The sample dust can be directly added to the box

4、 Safety protection device:

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

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

5、 Execution standards:

Meet the National Standard of the People's Republic of China for Shell Protection Level(IP code) GB4208-93 "can also meet the safety requirements and tests for lamps in IEC-529, GB2423.37-89, GJB150.12, GB10485, GB7000.1-7000.6-1996.

6、 Technical documentation provided:

Provide a set of relevant documents such as product certification, warranty card, user manual, circuit diagram, and instrument manual

7、 Transportation method:

Transportation method: Automobile transportation

8、 Acceptance criteria and methods:

Acceptance criteria: required by relevant national standards or signed by both partiesTechnical parameters;

List of accessories for sand and dust test chamber