Altitude Test Chambers

The Altitude Test Chamber provides essential low-pressure testing conditions, enabling engineers to evaluate and determine the performance and reliability of materials and components under reduced air pressure. This is crucial for products designed for high-altitude environments, such as aerospace and electric vehicle components.

• •Large capacity design: Compared to conventional test chambers, large high-altitude test chambers have larger internal space and can accommodate large equipment and samples.
• •Simulate high-altitude environment: able to simulate high-altitude conditions (such as 5000 meters, 8000 meters, etc.), low pressure and low temperature, and test the performance of products in such environments.
• •Excellent temperature stability and uniformity, accompanied with low air pressure control.
• •Can customized the chamber’s volume, temperature and appearance on demand.
• •Local installation and debugging teams can be arranged on-site for debugging and installation.
• •It has programmable control function, can set fixed values/programs, can set different temperature and humidity change curves and test times.

The low-pressure test chamber is equipped with a specialized air pressure control system, which reduces the air pressure inside the test chamber by using a vacuum pump or air pressure regulating device. The low-pressure test chamber plays an irreplaceable role in multiple fields. The common applications of high-altitude environmental test chambers are as follows:

• •Aerospace: To test performance of meters, control systems, etc, under extreme temperature and air pressure conditions.
• •Electronics: To test reliability of electric parts for mobile phones, laptops, and chipset, etc, under extreme temperature and low-pressure conditions.
• •Auto Mobile: To test function and evaluate durability and reliability of engine, brake, tyres, etc, by simulating conditions such as high temperature, low temperature, altitude conditions, etc.
• •Food: To test and evaluate food warranty period and storage condition under different temperature and air pressure conditions.
• •Material: To study physical and chemical functions of materials under different temperature and air pressure conditions
• •Coatings: To test and evaluate coating performance, durability and reliability under different temperature and air pressure conditions.

The altitude test chamber is an experimental equipment that simulates high-altitude environments, capable of simulating different pressure and temperature conditions from sea level to tens of thousands of meters above sea level, and evaluating and analyzing the performance of test samples in low-pressure environments. The following are common testing standards for low-pressure test chambers:

• •NF C20-713-2021： Environmental Testing Part 2-13, Test Method M Test: Low Air Pressure.
• •MIL-STD-810： The US military standards involve reliability testing of materials and equipment in low-pressure environments, including multiple testing methods and conditions.
• •ASTM D4169： The American Society for Testing and Materials standards involve low-pressure testing in packaging and transportation environments.
• •IEC 60068： The International Electrotechnical Commission standards cover various environmental tests, including low-pressure and high/low temperature tests.
• •IEC 61215： The testing standards for photovoltaic modules include evaluation of low-pressure environments.
• •NASA-STD-5001： Involving testing requirements for spacecraft and its components under various environmental conditions.

The large high-altitude test chambers are advanced testing equipment that can provide important data support for research in high-altitude environments.

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.
• •Programmable control: supports setting experimental programs, such as heating, cooling, holding time, etc., and executing multiple program settings.Support advance reservation for power on function.
• •Multiple languages optional: English, Korean, Russian, Chinese, and Japanese.
• •Remote monitoring: Using SAMWON-EZNET network remote technology to achieve remote control, the test chamber can be monitored at any time and emails can be sent to users' PCs and phones, enhancing convenience.

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.