Environmental Test Chamber , Temperature Humidity Chamber For LED Life Evaluation Using

Environmental Test Chamber , Temperature Humidity Chamber For LED Life Evaluation Using

1. Do you know KOMEG?

KOMEG Designed to Meet Internationally Accepted  Climatic Test Chambers. As a professional manufacturer and the best brand climatic chamber in China, KOMEG specialized in Environmental testing equipment for quality conscious people since 1990. Our products are CE approved and  we are the supplier for ,UL, and world top 500 companies.

2. What we working for ?

Constant Temperature and humidity test chamber is used to test material structure or composite, in the high temperature and ultralow temperature continuous environment.
Toleration of these material to these circumstance. Test chemical change or physical damage caused by their expansion and contraction. Suitable for electronic, LED lighting industry, auto parts, chemical industry, building materials, mobile computers, batteries, plastic, metal, rubber etc. Material.
Under condition of high and low temperature change, test various performance reliability index of related product spare parts and materials for institutions of higher learning, scientific research units etc. Can be used as the basis of improving product or reference.

3 Overview

An environmental test chamber artificially replicates the conditions under which machinery, materials, devices or components might be exposed. It is also used to accelerate the effects of exposure to the environment, sometimes at conditions not actually expected. These conditions may include:

1) Extreme temperatures

2) Sudden and extreme temperature variations

3) Moisture or relative humidity

4) Electrodynamics vibrations

5) Electromagnetic radiation

6) Salt spray

7) Rain

8) Weathering

9) Exposure to sun, causing UV degradation

10) Vacuum

Manufactured samples, specimens, or components are placed inside the chamber and subjected to one or more of these environmental parameters to determine reliability or measure after-effects such as corrosion. In the case of machinery such as internal combustion engines, byproducts such as emissions are monitored.

An environmental chamber can be a small room used both to condition test specimens and to conduct the test. It can be a smaller unit that's used for conditioning test items. Also, some chambers are small enough to be placed onto a universal testing machine or other test apparatus.

Many chambers are set at a certain set of conditions. Others can be programmed to cycle through specified sequences of conditions.

4. Design

As test requirements may be relatively simple or complex, environmental test chambers vary widely in size, ranging from small units designed for placement on bench tops to large walk-in chambers. Test chambers generally have viewports or video feeds to allow for visual inspection of the sample during the test. Reach-in chambers provide an opening that technicians may use to handle test samples. Chambers providing interior visual lighting must take into account the heat generated and compensate accordingly.

As with the wide variance in size, a number of user control options are available, ranging from simple analog indicators up to more modern digital readouts with LCD displays. Chambers may be computer programmable, and networked or Web-enabled test chambers are also available.[1]

5 Types of test chambers

1) Mechanically cooled test chambers

2) Liquid nitrogen cooled test chambers

3) Modular Walk-in Chambers

6 Test chamber standards

Several standards organizations provide standards and guidance on environmental test chamber construction, temperature control standards, and engineering tolerances.

Institute of Environmental Sciences and Technology

Air Conditioning, Heating and Refrigeration Institute (formerly the American Refrigerant Institute)

American Society of Heating, Refrigerating, and Air-Conditioning Engineers Air conditioning American Society of Heating, Refrigerating, and Air-Conditioning Engineers

ASTM International

Underwriters Laboratories

NSF International

Factory Mutual

Canadian Standards Association

International Organization for Standardization