Double-layer Temperature Humidity Test Chamber

The double-layer temperature and humidity test chamber can simulate high temperature, low temperature, alternating humidity and heat, constant humidity and heat and other environmental tests, and is suitable for the testing needs of multiple industries.

• •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.
• •Local installation and commissioning team can be arranged for commissioning and installation.
• •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.

The double-layer temperature and humidity test chamber has two independent temperature and humidity control systems, which saves energy and reduces operating costs.

Double-layer constant temperature and humidity test chambers are widely used in electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical treatment, aerospace and other fields. For example:

• •Electronic semiconductor industry: used to test the performance and stability of electronic components and equipment under different temperature and humidity conditions, such as chips, mobile phones, computers and other consumer electronic products.
• •Materials science: used to evaluate the physical and chemical properties of materials under high humidity and high temperature environments, especially polymers, coatings, composite materials, etc.
• •Pharmaceutical industry: used for stability testing of drugs to ensure the effectiveness and safety of drugs under different storage conditions.
• •Optical industry: used to test the performance of optical materials and equipment under different environmental conditions to ensure their stability in practical applications.

The double-layer temperature humidity test chamber can help enterprises and scientific research institutions conduct product reliability assessments and improve product quality and reliability by simulating different temperature and humidity environments.

The test standards for double-layer temperature humidity test chambers usually vary depending on the industry and product. The following are some common standards and specifications:

• •IEC 60068-2-30: Environmental testing standards developed by the International Electrotechnical Commission (IEC), involving product performance testing under different humidity and temperature conditions.
• •ISO 16750: International Organization for Standardization (ISO) standard for automotive electronic equipment, which includes test requirements for environmental conditions.
• •ANSI/TIA/EIA 455-162A-1999 "Temperature-humidity cycle test for optical cables": a temperature-humidity cycle test standard developed for optical cable products to evaluate the performance and reliability of optical cables under different temperature and humidity conditions.
• •British Standard: BS EN 61300-2-48

The double-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.