Discover the benefits of temperature and humidity chambers

I、 Purpose of environmental test
The environmental test examines the adaptability of the product to the environment, determines whether the environmental adaptability design of the product complies with the contract requirements, and provides decision-making basis for acceptance and rejection.

A. Quantity of environmental stress used for environmental test
In terms of environmental test, 19 test items are specified in GJB150, 20 environmental test items are specified in mil-std-810 D, and 24 test items are increased from 810f, including environmental stress that has important impact on products, such as temperature, humidity, salt spray, vibration impact, pressure, solar radiation, sand dust, rain, etc. The test items of the tested products shall be selected according to their future use environmental conditions and the degree of impact. Generally, more than 10 environmental stresses shall be inspected.

B. Selection criteria of environmental stress value
Extreme conditions are basically adopted for environmental test, and severe conditions are used instead of mild conditions, that is, the most extreme environmental conditions that may be encountered during the product life cycle are used as test conditions. Many tests are destructive and it is not necessary to simulate the working state of the product during the test.

II、 Type of environmental test
1. Climatic environment test
A. Temperature test: high temperature test, low temperature test, temperature impact test, temperature change test, rapid temperature change test (the temperature change rate can reach 15 ℃ / min), high temperature aging test and temperature cycle test.
B. Humidity (humidity) test: constant humidity and heat test, alternating humidity and heat test, high temperature and high humidity test (double 85 test, double 95 test);
C. Enclosure protection level test: Ip42, IP44, P54, IP55, IP65, IP66, IP67, IP68 protection level certification and test services;
D. Three prevention tests: salt spray corrosion test (neutral salt spray test, alternating salt spray test, acid salt spray test), damp heat test (constant damp heat, alternating damp heat), mold test (mildew test, long mold test);
E. Special tests: low pressure test (altitude test), high pressure test, solar radiation test, rain test, sand and dust test, etc.

2. Mechanical environment test
A. Vibration test: sine vibration test (frequency sweep durability test), random vibration test, broadband random vibration test, narrowband random vibration test, sine + random superposition test;
B. Impact test: half sine wave mechanical impact test, post peak sawtooth wave impact, impact response spectrum test;
C. Other tests: drop test (free drop, repeated drop), collision test, acceleration test, etc.

Temperature and humidity test chamber, also known as environmental test chamber or climate test chamber, is an environmental simulation system and equipment commonly used in laboratories and factories. It is used to adjust the temperature and humidity of the sample before the test, as well as the high and low temperature alternating test of various materials. The test temperature, humidity and time can be programmed.

What are the advantages of choosing a temperature and humidity environment box? From the following five points:
1. Perfect simulation
Within a certain tolerance range, it can simulate the use and storage of engineering products. External environmental conditions experienced during transportation.
2. Trial and error
One environmental test chamber can conduct multiple tests on the same product, and the same north side product can also be tested in different environmental test chambers. Its repeatability ensures the comparability of experimental results obtained by the same product under the same test environment.
3. Controlled
The environmental parameters can be adjusted freely, and the parameters are limited within a certain tolerance range to ensure the accuracy of simulation and avoid product damage caused by environmental conditions.
4. Securit
The temperature and humidity chamber has the characteristics of safe, convenient and reliable operation, long service life and bench. Various protection, alarm measures and safety interlock devices are also set in the environment test.
5. Wide application range
Specifically, temperature and humidity boxes are needed to help our people in production and experiment in daily production and life, electronics, electricity, communications, instruments and meters, vehicles, plastic products, metals, food, chemical, building materials, medical, aerospace, sanitary and other product quality testing.

In short, the environmental temperature and humidity test chamber can accurately simulate the complex natural environment such as low temperature, high temperature, high temperature and humidity, so as to test the cold resistance, heat resistance, dry resistance and humidity resistance of products, and improve the products to make them more durable.

In order to use the temperature and humidity test chamber smoothly, the quality of the test chamber, the after-sales service of the manufacturer, and the technical conditions are all very important factors, which are indispensable .

LISUN launched Temperature Humidity Chamber | Thermal Chamber | Climate Chamber is according to IEC60068-2-1 (GB/T2423.1) and IEC60068-2-2 (GB/T2423.2), IEC60068-2-78, IEC60598-1, GB/T2423.17, GB/T5170.2, GB/T5170.5. The climate chamber is used to test the CFL/LED which meets IES LM-80-08, electricity products, automative cars, home appications and mobiles.

GDJS-015B High and Low Temperature Humidity Chamber

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618117273997