Ultra-low Temperature Test Chamber

The ultra-low Temperature Test Chamber can generate and maintain an environment as low as -70°C, -80°C, or even -196°C (close to liquid nitrogen temperature).

• •The lowest temperature can reach -85℃, suitable for most product tests.
• •Multi-layer hollow tempered glass observation window with automatic defogging function.
• •Seamless welded SUS#304 high and low temperature resistant steel plate inner cavity.
• •Each side is equipped with test lead space, convenient for charging and discharging cabinet placement.

The ultra-low temperature test chamber is a kind of test chamber used to test and determine the operation and performance of electrical, electronic, automotive electrical appliances, materials and other products in extremely low temperature environments.

Ultra-low temperature test chamber is a high-tech equipment, which is mainly used to simulate the storage and use conditions in extreme low temperature environment,Its application fields are very wide, the following are the main common application fields:

• •Medical field: widely used in the storage and testing of drugs and biological products (such as vaccines, cells, tissues, blood, fertilized eggs, etc.), which need to be stored at low temperatures to maintain their biological activity for long-term preservation, research and use.
• •Electronics industry: used to test the performance and reliability of electronic components at extremely low temperatures, which helps to find potential defects and problems and improve product quality.
• •Aerospace: Test the environmental adaptability and reliability of aircraft equipment such as aircraft, missiles, and satellites to ensure their normal operation in extremely cold weather and high altitude environments.
• •Food industry: used for the research and development of food preservation technology, by simulating ultra-low temperature storage conditions to extend the shelf life of food.

As a high-tech equipment, ultra-low temperature test chambers play an important role in many other industries, such as automobiles, electrical appliances, electronic communications, etc.

The test standards for ultra-low temperature test chambers are mainly determined by their application fields and industry requirements. The requirements for ultra-low temperature test chambers in different fields may be different, and the test standards may also be different. Of course, many international and industry ultra-low temperature test chamber test standards are clear. The following are some common test standards and specifications:

• •IEC 60068-2-1: Environmental Testing Part 2: Test A: Low Temperature Tests. This is a standard for testing electrical and electronic equipment in low temperature environments.
• •ASTM D3418: Used to determine the physical properties of polymers and other materials at different temperatures, which may involve testing in the ultra-low temperature range.
• •ISO 16750: Automotive industry standard, involving testing of automotive electronic equipment under different environmental conditions, including low temperature testing.

Ultra-low temperature test chamber product testing standards involve multiple aspects to ensure that the performance and quality of the product meet specific requirements. It can effectively test and verify the performance and reliability of different materials and equipment under extreme low temperature conditions.

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

• •Controller: It adopts the controller imported from South Korea Sanwon and the self-developed control system, which can be equipped with Siemens control system and equipped with RS232, RS485 and Ethernet communication ports.
• •Programmable control: It supports setting experimental programs, such as heating, cooling, constant temperature time, etc., and can execute multiple program settings, and supports advance reservation startup function.
• •Multiple languages are available: 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 the current data can be viewed through the user's PC and mobile phone, which improves the convenience of testing.

The specific control system of the test chamber will vary depending on the model. Please read the "Sanwood Environmental Test Chamber Manual" carefully before use and comply with the safety operating procedures.

The refrigeration system of the test chamber is a complex and important system. The stability of the refrigeration system is crucial to the accuracy and reliability of the test results.

• •Sanwood Technology has developed a refrigerant hot gas defrosting technology, which effectively melts the frost on the evaporator by injecting high-temperature and high-pressure refrigerant steam into the heat exchanger in 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 an internationally renowned brand. In cooperation with Japan's Saginomiya and the United States' Sporlan, the EPV series and XUP series energy-saving system quick-opening solenoid valves have been developed, with an all-weather service life of more than 15 years. And began to develop a new Danfoss AKV series throttling electronic expansion valve system, which is more efficient and energy-saving, and reduces noise.
• •Optimize the layout of the refrigeration system, and adopt VRF (refrigerant flow control) technology based on the 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 a modular design, with low failure rate, few welding points, high refrigeration efficiency, good reliability, simple maintenance, and low maintenance cost.