In modern laboratories and quality assurance facilities, precise environmental testing is critical to ensure product reliability, safety, and compliance. Temperature and humidity fluctuations can significantly impact the performance and lifespan of electronics, automotive components, pharmaceuticals, and other sensitive materials. To address these challenges, LIB TH Series Temperature Humidity Test Chambers provide an advanced solution that combines accuracy, flexibility, and ease of operation. Designed to simulate a wide range of real-world conditions, these chambers allow engineers and researchers to conduct rigorous testing, capture reliable data, and optimize product performance under controlled temperature and humidity environments. This guide will walk you through how to program and operate a LIB Temperature and Humidity Test Chamber, while highlighting the key features and advantages that make it a trusted choice for laboratories worldwide.
LIB TH Series Temperature Humidity Test Chambers are available in a variety of sizes and performance to suit your needs. The low type temperature has -20℃/-40℃/-60℃/-70℃/-86℃, and humidity comes with 20% to 98% RH. Programmable control can create 120 programs 100 segments. We will guide you on how to program a temperature and humidity test chamber effectively.
1. Understand the Test Chamber's Controls
The PID controller as the main control unit to command, operate, detect and redistribute the various components of the equipment
to achieve maximum effective use.
The temperature control adopts P.I.D. S.S.R. system synchronous coordinated control, which can improve the stability and life of the control components and interface.
Screen display function: LCD display, which can display test conditions (including temperature section, cycle number, running time and remaining time, etc.).
2. Input the setpoint of temperature, humidity and time
Click on temperature and enter the temperature value in the pop-up box; click on humidity and enter the humidity value in the pop-up box. Enter hours and minutes in the time pop-up box. Enter the number of cycles and click the Run button. The test chamber starts running
3. Monitor the Test
While the test is in progress, it is important to monitor the test chamber regularly. Open the controller, and you can see the current operating data on the controller's monitoring screen.
4. Data and Curves
After the automatic operation of the test chamber is completed, the running data can be downloaded through USB for data analysis.
You can also view the curve graph on the controller.
5. Other control methods
LIB's temperature and humidity test chamber is programmable, easy to operate and user-friendly. You can also perform appointment settings, fault alarms, and PC link connections.
You can also connect the LIB test chamber to your laboratory's operating software, such as Labview, etc.
6. Advantages of LIB Temperature Humidity Test Chambers
LIB Temperature Humidity Test Chambers are engineered to deliver exceptional accuracy, long-term reliability, and operational efficiency for real-world laboratory testing. When performing environmental simulations under standards such as IEC 60068-2-30 and IEC 60068-2-78, precise control is essential. LIB chambers provide temperature stability of ±0.5 °C, uniformity within ±1.5 °C, and humidity accuracy of ±2.5% RH. With temperature ranges from –70 °C to +150 °C and humidity control from 20% to 98% RH, the chambers support demanding applications such as 85 °C/85% RH long-term reliability testing. High-precision PT100 Class A sensors ensure repeatable and trustworthy data, reducing the need for retesting and strengthening product certification confidence.
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Temperature range | -20℃ ～+150 ℃ | ||||
Low type | A: -40℃ B:-70℃ C -86℃ | ||||
Humidity Range | 20%-98%RH | ||||
Temperature deviation | ± 2.0 ℃ | ||||
Heating rate | 3 ℃ / min | ||||
Cooling rate | 1 ℃ / min | ||||
Controller | Programmable color LCD touch screen controller, Multi-language interface, Ethernet , USB | ||||
Refrigerant | R404A, R23 | ||||
Exterior material | Steel Plate with protective coating | ||||
Interior material | SUS304 stainless steel | ||||
Standard configuration | 1 Cable hole (Φ 50) with plug; 2 shelves | ||||
Timing Function | 0.1~999.9 (S,M,H) settable | ||||
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Touch screen controller Holds up to 120 test programs with 100 steps each, making it well suited for complex multi‑stage profiles such as temperature–humidity shock or soak cycles. | The compressor The compressor rapidly removes heat from the chamber interior, achieving a cooling rate around 1 °C / 5 °Cper minute. | Robust Anti-Corrosion Workroom The chamber's interior is built from SUS304 stainless steel, offering outstanding resistance to heat and corrosion for long-lasting performance. | Integrated Power Access hole Allows test specimens to stay powered during experiments, enabling performance evaluation under varying temperature and humidity. Standard 50 mm diameter; quantity and size customizable. |
Beyond accuracy, LIB chambers are designed to maintain highly uniform environmental conditions. The multi-directional centrifugal airflow system and optimized air duct structure eliminate hot and cold spots inside the chamber. This ensures that both small electronic components and large assemblies experience identical environmental stress. Consistent air circulation not only improves test repeatability but also enhances the credibility of research and quality validation results.
Durability is another core advantage. The interior is constructed from corrosion-resistant SUS304 stainless steel, while the exterior uses reinforced A3 steel with protective coating, making the chamber suitable for continuous operation in busy laboratories. Silicone door seals prevent leakage, and the frost-resistant observation window with built-in LED lighting allows easy inspection without interrupting testing conditions. These structural features extend equipment lifespan while reducing maintenance frequency.
LIB chambers are also highly customizable to match specific testing needs. Adjustable sample racks can be configured for lightweight PCBs, automotive components, or heavy industrial parts. Cable ports can be customized in size, quantity, and shape to accommodate sensors or external connections. With programmable control supporting up to 120 programs and 100 segments per program, users can create complex temperature and humidity cycles and switch between them efficiently, improving laboratory productivity.
Operational simplicity further enhances the user experience. The intuitive color touchscreen interface, PID-based control system, and real-time curve display make programming and monitoring straightforward. Rapid heating rates of 3 °C per minute and cooling rates of 1 °C per minute significantly shorten test cycles, helping laboratories meet strict project deadlines. Stable long-duration holding performance ensures uninterrupted operation during extended aging tests lasting hundreds or even thousands of hours.
In addition, LIB focuses on sustainability and cost efficiency. Advanced insulation materials and optimized compressor systems reduce energy consumption, while the intelligent humidity system improves water utilization efficiency. Quiet operation allows the chamber to function comfortably alongside laboratory workstations without disrupting daily tasks.
Overall, LIB Temperature Humidity Test Chambers combine precision, durability, flexibility, and efficiency into a reliable environmental testing solution. They are not simply testing equipment, but a dependable laboratory partner designed to safeguard data integrity and accelerate product validation timelines.
For more information, a live demonstration, or to discuss customization options, contact LIB Industry today. Our team of experts is ready to help you select the ideal Temperature and Humidity Test Chamber for your laboratory needs, provide programming guidance, and ensure your testing workflows are optimized for accuracy, efficiency, and reliability. Empower your lab with precision-engineered environmental testing solutions and experience the full capabilities of LIB TH Series chambers. Reach out via phone, email, or our website to speak with a specialist and explore how LIB Industry can support your testing and R&D projects.
