High and Low Temperature Test Chambers

The high and low temperature test chamber design usually includes three levels or shelves, which can test multiple samples at the same time, which is very suitable for laboratories or production environments that require large-scale testing.

• •Advanced cold balance control mode and PD adjustment technology greatly reduce the energy consumption of the equipment.
• •After the program runs, the equipment has the function of automatically restoring normal temperature for the protection of the test product.
• •It has good sealing to ensure that the equipment can run for a long time (more than 1000 hours) without frost.
• •The unique air circulation design ensures that the top of the studio will produce dripping even in the hot and humid mode.
• •Can customized the chamber’s volume, temperature and appearance on demand.

The high and low temperature test chamber has a wide temperature control range, usually covering from -80℃ to +200℃, or even higher or lower.

The high and low temperature test chambers are mainly used to test the performance indicators of parts and materials of related products such as electronics and electrical engineering, automobiles and motorcycles, aerospace, ship weapons, colleges and universities, scientific research institutions, etc. under high temperature and low temperature (alternating) cyclic changes. It has a wide range of applications in many fields. The following are some common application areas:

• •Electronic and electrical industry: used to test the performance and reliability of electronic components, circuit boards, complete machines and other products under high and low temperature environments.
• •Automotive industry: Test the performance of automotive parts such as engines, batteries, body materials, etc. under extreme climate conditions to ensure that the car can maintain stable performance in various complex environments.
• •Aerospace industry: Test the performance of aircraft parts under extreme climatic conditions to ensure that they can work normally under various environmental conditions.
• •Scientific research field: Provide stable environmental conditions for scientific researchers for material research, biological experiments, etc.

The working principle of the high and low temperature test chamber is mainly based on cooling and heating cycles. These cycles are used to control the temperature inside the equipment to simulate different high and low temperature environments.

• •MIL-STD-810: US military standard, involving a variety of environmental tests, including high and low temperature test methods, very suitable for military and aerospace products
• •ISO 16750: An automotive industry standard that provides requirements for testing automotive electronic components under different environmental conditions, including temperature and humidity changes.
• •SAE J1211: A standard for automotive electronic components that covers reliability testing under extreme temperatures.
• •IEC 60068-2-1 and IEC 60068-2-2: Environmental testing standards issued by the International Electrotechnical Commission (IEC), respectively involving low temperature and high temperature environmental test methods, suitable for weathering tests of electronic components and equipment.

It also complies with IEC 60571, NB/T 31004, GJB 150, IEC, MIL 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.
• •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.