Walk-In Temperature and Humidity Climatic Test Chamber
Walk-In Temperature and Humidity Climatic Test Chamber is designed to assess the performance and reliability of materials, products, or equipment under controlled climate conditions. With its spacious interior, it allows personnel to enter the chamber for direct operation and monitoring. This type of chamber is widely used in industries such as electronics, electrical systems, automotive, aerospace, and plastics testing.

Application Fields of the Walk-In Climatic Test Chamber
The walk-in constant temperature and humidity test chamber is a key tool for research, development, and quality assurance across a wide range of industries. Its advanced control capabilities and spacious design make it ideal for testing large components and systems under controlled environmental conditions. Common applications include:
- Electronics and Electrical
Used to assess the reliability and performance of electronic components and devices in high-temperature and high-humidity environments. Commonly applied in life cycle testing and quality checks for products such as mobile phones, computers, and household appliances. - Automotive
Evaluates how vehicles and their components respond to extreme climate conditions. Often used to test automotive electronics, interior materials, and other systems to ensure consistent performance. - Aerospace
Simulates extreme environmental conditions—including temperature, humidity, and pressure changes—to test aerospace equipment. Components of satellites, aircraft, and spacecraft are evaluated to ensure functionality in demanding environments. - Material Science
Analyzes how materials behave under varying temperature and humidity levels. Useful for studying the aging, corrosion resistance, and long-term durability of plastics, rubber, metals, and other materials. - Batteries and Energy Storage
Tests battery performance, safety, and lifespan under different environmental conditions. Helps verify the reliability of lithium batteries and other energy storage systems in real-world applications.

Test Standards for Walk-In Temperature and Humidity Chambers
When conducting tests in a walk-in constant temperature and humidity chamber, it’s essential to follow recognized international and industry standards. These standards help ensure test accuracy, consistency, and scientific validity. Below are some commonly referenced standards:
- IEC 60068-2-30
Issued by the International Electrotechnical Commission (IEC), this standard covers the damp heat cyclic test, used to evaluate how products withstand humid and warm environments. It is widely applied in testing electronic components, devices, and systems. - MIL-STD-810
A U.S. military standard that includes a range of environmental testing procedures, including high humidity tests. It is commonly used to assess the environmental performance of military and industrial equipment. - ISO 9001
While not specific to environmental testing, this quality management system standard emphasizes the importance of consistent testing and process control during product development and manufacturing. - JIS C 60068-2-78
Industrial Standard focused on testing the performance of products and materials in humid and hot environments. Frequently used in electronics, automotive, and related fields.
In addition to the above, walk-in test chambers also support compliance with other standards such as IEC 60068, ASTM D2247, BS EN 61300-2-48, and JIS Z 0202, ensuring compatibility with a broad range of industry requirements.

Control System of the Climatic Test Chambers
Climatic Test Chambers feature a cutting-edge control system that combines advanced hardware and software to maintain stable operation under preset conditions. This system delivers accurate test data and enables precise management of environmental parameters throughout testing.
- Controller
The chamber is equipped with a high-performance controller, integrated with control system. Siemens control options are also available. Communication ports include RS232, RS485, and Ethernet for flexible connectivity. - Programmable Controls
Users can set custom testing programs for functions such as heating, cooling, and hold times. The system supports multi-step programs and offers a scheduled start feature for improved workflow efficiency. - Multi-Language Support
Interface languages include English, and other languages. - Remote Monitoring
Powered by EZNET remote network technology, the chamber can be monitored and managed in real time from a PC or mobile device. This allows users to view live data and control the system remotely, enhancing convenience and operational flexibility.
Please note: Control system specifications may vary by model. For detailed instructions and safety guidelines, refer to the Environmental Test Chamber Manual before use.

Refrigeration System of the Climatic Test Chamber
The refrigeration system is a critical component of the test chamber, directly affecting the accuracy and consistency of test results. Qualitest has engineered a high-performance system that balances precision with energy efficiency.
- Hot Gas Defrost Technology
Qualitest's advanced refrigerant hot gas defrosting method uses high-temperature, high-pressure refrigerant vapor injected into the heat exchanger to effectively melt frost on the evaporator. This prevents frost buildup and significantly reduces energy consumption. - High-Quality Components
The refrigeration unit features components from globally recognized brands. Qualitest developed the EPV and XUP series energy-saving solenoid valves, built for continuous operation exceeding 15 years. Development is also underway on a new system using Danfoss AKV series electronic expansion valves, designed for greater efficiency, reduced energy use, and lower operating noise. - Optimized Energy-Saving Performance
The system layout is carefully designed to enhance efficiency. It integrates VRF (Variable Refrigerant Flow) technology based on PID-controlled cold-end output, allowing for low-temperature energy-saving operation—cutting energy usage by up to 30% in low-temp scenarios. - Modular System Design
The modular refrigeration system offers high cooling efficiency and reliability, with minimal weld points to lower the risk of failure. Maintenance is straightforward, with fewer service requirements and reduced overall cost.