Benchtop Environmental Chamber Quali22L™

Application fields of The Test Chamber

The benchtop temperature and humidity test chamber is designed to simulate environmental conditions with controlled temperature and humidity. It is widely used in aviation, aerospace, electronics, instrumentation, automotive, home appliances, scientific research, and other fields.

• Electronic product testing: Evaluates the resistance of electronic components and equipment to temperature and humidity.
• Material research: Supports performance studies of plastics, metals, coatings, and other materials.
• Biological experiments: Creates controlled growth environments for biopharmaceutical and microbiological research.
• Quality testing: Ensures product safety and reliability under specific environmental conditions.

The use of benchtop constant temperature and humidity test chambers not only enhances product quality and reliability but also supports scientific research and technological innovation.

The Test Standards of the Benchtop Environmental Chamber

The benchtop temperature and humidity test chamber provides precise control of environmental conditions with stable temperature and humidity settings. It can also simulate extreme environments such as high temperature, low temperature, high humidity, and low humidity to evaluate product durability and reliability.

Common standards and specifications for benchtop constant temperature and humidity test chambers include:

• IEC 60068-2-1: Environmental testing, Part 2, Test A: Low temperature methods and requirements.
• ISO 16750: International standard for automotive electronic equipment, covering environmental test requirements.
• MIL-STD-810: U.S. military standard that defines a wide range of environmental test methods, including high temperature and humidity testing.

In addition, benchtop temperature and humidity test chambers comply with standards such as JIS Z 0202, ANSI/TIA/EIA 455-162, ASTM D 2247, and BS EN 61300-2-48, ensuring broad applicability and reliability across industries.

Control System of the Test Chambers

The control system of the test chamber integrates advanced software and hardware to ensure stable operation under preset conditions. It delivers accurate, reliable data and enables precise control and monitoring of various testing environments.

• Controller: Uses a high-performance controller along with a proprietary control system. Can also be equipped with a Siemens control system and includes RS232, RS485, and Ethernet communication ports.
• Programmable control: Supports custom test programs such as heating, cooling, and constant temperature cycles. Multiple programs can be executed, and an advanced scheduling function allows preset startup.
• Multiple language options: English and others.
• Remote monitoring: With EZNET network technology, users can remotely control and monitor the chamber from a PC or mobile device, ensuring real-time access to data and convenient operation.

Refrigeration System of the Test Chamber

The refrigeration system of the test chamber is a critical component, as its stability directly affects the accuracy and reliability of test results.

• Hot gas defrosting technology: Qualitest Technology has developed a refrigerant hot gas defrosting method that melts frost on the evaporator by injecting high-temperature, high-pressure refrigerant steam into the chamber’s heat exchanger. This prevents frost buildup while significantly reducing energy consumption.
• High-quality refrigeration units: The system uses internationally recognized brands. In collaboration Qualitest developed EPV and XUP series quick-opening solenoid valves with a service life of over 15 years. Additionally, the new Danfoss AKV series electronic expansion valve system enhances efficiency, reduces noise, and improves energy savings.
• Optimized system layout: Incorporates VRF (Variable Refrigerant Flow) technology based on PID cold-end output principles. This design supports energy-efficient low-temperature operation, cutting power use by up to 30% under low-temperature conditions.
• Modular design: Features a simplified structure with fewer welding points, low failure rate, high cooling efficiency, strong reliability, easy maintenance, and reduced service costs.