Walk-in ESS Test Chambers

The walk-in rapid temperature change test chamber has the ability to quickly heat up and cool down, and can complete temperature changes in a short time to simulate extreme environments in actual use. It provides a reliable testing platform for scientific research and industry, helping to develop higher performance products.

• •The walk-in design allows for a larger internal space of the device, enabling testing of larger sized samples or multiple samples.
• •It has programmable control function, can set fixed values/programs, can set different temperature and humidity change curves and test times.
• •Operating system with multi-language system, can be switched according to the need.
• •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.
• •Designed and manufactured in accordance with international standards, with high reliability and stability.

The walk-in ESS test chamber is a device to obtain fast temperature change rate. It offers great temperature changes in a short period of time, while keep high accuracy of temperature control. This device is widely used in multiple industries:

• •Pharmacy: To test and study stability and reliability of packing and medical devices based on high temperature change conditions
• •Chemistry: To test and study function and function change rules of materials in different temperature or temperature changing conditions; to research and study function and reliability of new materials; obtain scientific proof for new material selection and high performance material selecting.
• •Aerospace: To test performance of meters, control systems, aerospace materials, spare parts etc., under extreme temperature conditions.
• •Auto Mobile: To test function and evaluate durability and reliability of engine, brake, tyres, gears, control units, control panel, etc., by simulating different seasonal and regional conditions.
• •Electronics: To test and evaluate functions and reliability of electric parts for mobile phones, laptops, and chipset, etc., under extreme fast temperature change conditions.

Other applications: Test and quality evaluate for products of Communications, meters, plastic parts, metal parts, food, construction materials, etc.

The test standards of the rapid temperature change test chamber cover multiple aspects to ensure the accuracy and repeatability of the test. The following are some of the main test standards for the rapid temperature change test chamber:

• •MIL-STD-810: US military test standards, which is widely used in military and aerospace area. Multiple environmental test methods, including thermal cycle and ESS test are in it.
• •MIL-STD-202G Method 107G US military methods for testing electronic and electrical component parts.
• •IEC 60068-2-3 Revised：Basic environmental testing procedures for electronic components and electronic equipment.
• •ISO16750：Road vehicles — Environmental conditions and testing for electrical and electronic equipment.
• •IEC 62133: Safety Testing for Lithium Ion Batteries.
• •IEC 60068-2-14: Temperature Testing.
• •IEC 60068-2-1: Environmental testing.
• •IEC 60068-2-2: Dry Heat Temperature Testing.

The testing standards for the rapid temperature change test chamber cover multiple aspects, including the main standards followed, technical parameters, and other requirements. These standards and requirements together form the benchmark for equipment performance evaluation, ensuring the accuracy and repeatability of testing.

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.