Three-layer Temperature Humidity Test Chamber

Three-layer temperature and humidity test chamber adopts three sets of independent refrigerant system, heating humidifying system and control system, which greatly reduces the operating cost, it is the mandatory test equipment for aviation, automobile, home appliance, scientific research and other fields.

• •With rogrammable control function, which can set fixed value/program, can set different temperature and humidity change curves and test time.
• •Can customized the chamber’s volume, temperature and appearance on demand.
• •The volume, temperature and appearance of the test chamber can be customized.
• •Optional more environmentally friendly, efficient and safe CO2 refrigeration system (GWP=1, ODP=0).
• •Designed and manufactured in accordance with international standards, with performance of higher reliability and better stability.
• •Local installation and commissioning team can be arranged for commissioning and installation.

Three-layer temperature humidity test chamber is widely used in electronics, electrical appliances, cell phones, telecommunications, instrumentation, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other fields. For example:

• •Scientific research institutions: for basic research, technology development and product testing, especially in climate simulation and environmental adaptation research.
• •Food industry: used to test the shelf life and quality change of food packaging materials, finished products and raw materials under different environmental conditions.
• •Electronic Semiconductor Industry: used to test the performance and stability of electronic components and devices, such as chips, cell phones, computers and other consumer electronics, under different temperature and humidity conditions.
• •Materials science: for evaluating the physical and chemical properties of materials in high humidity and high temperature environments, especially polymers, coatings, composites and etc.

Three-layer temperature humidity test chamber through the simulation of different temperature and humidity environment, it can help enterprises and research institutions to carry out product reliability assessment, improve product quality and reliability performance.

The test standard of three-layer temperature humidity test chamber usually varies according to the industry and products, the following are some common standards and regulations:

• •IEC 60068-2-78: "Environmental tests Part 2-78: Tests Test Cab: Constant humidity and heat test": Detailed the specification for the constant humidity and heat test.
• •ISO 16750: International Organization for Standardization (ISO) standard for automotive electronic equipment, which includes test requirements for environmental conditions.
• •MIL-STD-810: A military standard developed by the U.S. Department of Defense that covers a variety of methods for environmental testing, including high temperature and high humidity testing.
• •JIS Z 0202: Japanese Industrial Standard concerned with testing the resistance of materials and equipment under environmentally simulated conditions.

The three-layer temperature humidity test chamber also complies with IEC 60068,MIL-STD-810, ASTM D 2247, BS EN 61300-2-48, JIS Z 0202 and other test standards

The controller system of Sanwood test chamber adopts world leading hardware and software systems to ensure that the test box operates under preset conditions, providing accurate and reliable experimental data to help users achieve precise control and data collection of various experimental conditions.

• •Controller: The TEMI 1500 controller imported from Sanwontech in South Korea and the self-developed Siemens control system are used, equipped with RS232, RS485, and Ethernet communication ports. 
• •Protection system: protects the safety of machines and users through overheating and overcurrent cut-off mechanisms.
• •Multiple languages optional: English, Korean, Russian, Chinese, and Japanese.
• •Precise control: able to accurately set and maintain specific temperature ranges and humidity levels, accurately simulate various environments.

The specific control system of the test chamber may vary depending on the model, so it is necessary to carefully read the Sanwood Environmental Test Chamber Manual and follow safety operating procedures before use.

The refrigeration system of the test chamber is a complex and important system, and the quality of the refrigeration system is crucial for the accuracy and reliability of the test results.

• •Sanwood has developed hot air refrigerant defrosting technology, which effectively melts the frost on the evaporator by injecting high-temperature and high-pressure refrigerant vapor into the heat exchanger inside the test chamber. This not only ensures that the evaporator does not frost, but also greatly reduces the energy consumption of the equipment.
• •The refrigeration unit adopts international famous brands and cooperates with Japan's Eginomiya and the US Sporan to develop EPV series and XUP series quick opening solenoid valves for energy-saving systems, with an all-weather service life of over 15 years. And began to develop the new Danfoss AKV series throttling electronic expansion valve system, which is more efficient and energy-saving.
• •Optimizing the layout of the refrigeration system adopts VRF (refrigerant flow control) technology based on PID cold end output principle to achieve low-temperature energy-saving operation, which can reduce energy consumption by 30% under low-temperature conditions.
• •The refrigeration system adopts modular design, achieving low failure rate,less welding joints, high refrigeration efficiency, good reliability, simple maintenance, and low repair costs.