Dust Test Chamber

The Sand dust test chamber applies to testing the enclosure sealing performance of products, mainly used for the tests of IP5X and IP6X specified in the enclosure protection grade standard. It mainly simulates the damage caused by sandstorm weather to locks, auto parts, seals, power instruments, and other products.

Chamber structure

Shell material: high-quality steel plate with a plastic spray treatment.

Liner material: imported SUS stainless steel light plate.

The visible glass door is convenient for observing the condition of the tested sample in the test chamber.

The bottom of the test chamber adopts high-quality fixable PU movable wheels.

There is a dust replacement device at the bottom of the test chamber.

Reliable pneumatic vibration device.

Powerful dust blower motor to ensure dust blowing and free fall

The heat is safe and stable (to prevent dust from sticking to the block) by using a pipe-wrapped mica sheet heating ring.

With timed heating control.

Description of control instrument

1. Control instrument; Imported digital display instrument

(1) Sand blowing time (IS-99h adjustable)

(2) Vibrating time (IS-99h adjustable)

(3) Load time (IS-99h adjustable)

(4) Working time (IS-9999h adjustable)

2. Main accessories: dust blower, vibrating motor, heating pipe, filter screen.

3. Equipped with vacuum actuating element (vacuum gauge, filter, gas flowmeter, quick interface)

Structural features

The shell of the equipment is made of a cold rolled steel plate with electrostatic spray, and the inner liner is of high-quality stainless steel plate. The overall appearance is beautiful and generous. A large area observation window and manual wiper device are arranged in the middle of the chamber door, which can facilitate seeing the test conditions of the specimen clearly in the test process. The main controller of the equipment uses an intelligent digital display controller, the main controller of the equipment uses an intelligent digital display temperature controller, a user-friendly design of the operation method, easy to learn and easy to use, and different functional grades of the instrument operation compatible with each other. Input using digital correction system, built-in common thermocouple, and thermal resistance nonlinear correction table, accurate and stable measurement. With position adjustment and AI artificial intelligence adjustment function, 0.2 level accuracy, a variety of alarm modes. The device has a timing function. The equipment is heated by a stainless steel-finished heating tube. The dust-blowing cycle and vibration cycle of the whole equipment are adjustable and equipped with a total test timer.

Main Specifications

Safety protection device

1. Power overload and short circuit protection

2. Ground protection

3. Over-temperature protection

4. To protect the equipment, all alarms will automatically cut off the power supply and sound an audible prompt.

Related standards

GJB150.1-86

GB4208-93 Test method for sand and dust

GB2423.37-89 Test method for sand and dust

GJB150.12 Sand and Dust Test

GB10485 Sand and Dust Test Method

Chamber structure:

Chamber shell material: high-quality steel plate spray treatment.

Liner material: imported SUS stainless steel light plate.

The visible glass door is convenient for observing the condition of the tested sample in the test chamber.

The bottom of the test chamber adopts high-quality fixable PU movable wheels.

There is a dust replacement device at the bottom of the test chamber

The main technical parameters:

1. Metal mesh diameter: 50um

2. Nominal spacing between 75um

3. Dosage of talcum powder: 2kg～4kg/m3

4. Fighting time: 0～99H59M

5. Fan cycle time: 0～99H59M

Run control system

Controller

Microcomputer Programmable Logic Controller

vacuum system

Equipped with pressure gauge, air filter, pressure regulating triplet, and connecting pipe (vacuum pump is optional, please specify when ordering)

Circulation fan

Low noise type motor. Multi-blade centrifugal fan

Dust heating system

Stainless steel mica sheet heating jacket

Main reference standard

GB4208-93 Dust test method

GB2423.37-89 Test method for sand and dust

GJB150.12 Test method for sand and dust

GB10485 Dust test method

Installation site

The ground is level and well-ventilated

No strong vibration around the device

No strong electromagnetic fields around the device

No flammable, explosive, corrosive substances and dust around the equipment

Installation requirements

Appropriate space for use and maintenance is reserved around the equipment

A: not less than 60cm

B: not less than 60cm

C: not less than 120cm

(Note: the tilt angle of the device cannot exceed 15°C)

Installation environmental conditions

Temperature: 5℃～+28℃ (average temperature within 24 hours≤28℃)

Relative humidity: ≤85%RH

Air pressure: 86kPa～106kPa

Power supply conditions: three-phase four-wire + protective ground wire, voltage range: AC (380 ± 38) V

Frequency allowable fluctuation range: (50±0.5)Hz

The grounding resistance of the protective ground wire is less than 4Ω

The user is required to configure an air or power switch of the corresponding capacity for the equipment at the installation site, and this switch must be used independently for the equipment

Troubleshooting

The sand and dust test chamber is used to test the sealing performance of the product shell. It is mainly based on the two test methods of IP5X and IP6X to simulate the sand and dust environment encountered by the product during production, transportation and storage, so as to test the protective performance of the shell. . . Nowadays, more and more attention has been paid to the role of dust-proof test equipment in quality control. Especially when some parts manufacturers supply related products to large OEMs, they must meet the relevant standard test requirements, and they must meet the relevant standard test requirements in the product design stage. Various relevant standards must be verified, and problems found through dust-proof test equipment and other related tests can be solved immediately so that enterprises can manufacture ideal products for customers.

In the process of testing the sand and dust test chamber, the operation failure of the sand and dust test chamber may be caused by power failure, operation errors, and other reasons. How to deal with the test failure without affecting the reliability and authenticity of the test results? Wuhan Test Equipment Co., Ltd. has summarized several points about the troubleshooting methods of the sand and dust test chamer.

1. The dust-proof test chamber is turned on the instrument does not light up and no electricity: check whether the power supply is normal, whether the phase sequence is normal, and whether there is a neutral line.

2. No dust blowing: Check whether the blower is working normally or the fan is too small, and check whether the dust is dry.

3. No vibration: Check whether the vibration motor is normal.

4. The sand and dust test chambers should be managed and operated by a special person, the chamber and blower should be cleaned regularly, and a professional person should be regularly maintained.

5. In order to stably exert the function and performance of the test chamber, a space with a perennial temperature between 15 and 25 degrees and a relative humidity of less than 85% should be selected.

6. The distance between adjacent walls or utensils. The ambient temperature of the installation site should not change rapidly. Fifth, it should be installed in a place without direct sunlight. It should be installed in a well-ventilated place, away from combustibles, explosives, and high-temperature heat sources. The equipment should be installed.