A climate chamber is an advanced research device used to accurately map environmental conditions in controlled laboratory tests. It is worth implementing a climate chamber as it reliably simulates the environment for testing the stability of drugs and materials. It provides precision of 0.1°C and full humidity control over many months of test cycles. Renggli experts confirm that the ultimate success of the device requires professional integration into laboratory ventilation systems.
What is a climatic chamber and assessment of its key features
The climate chamber is a test device for precise simulation of temperature and humidity, distinguished by an active humidification system, which distinguishes it from standard incubators.
A climate chamber is a physical device (instrument) used to map environmental conditions in laboratory tests. It allows temperature and humidity control on a daily basis, allowing you to test the stability of materials.
Key features:
- temperature simulation in daily cycles
- Humidity control in long-term conditions
- restoring environmental conditions (environmental chamber)
Key features:
- stainless steel in construction
- stable PT100 temperature sensors
- high repeatability of conditions
Unlike an incubator, a climatic chamber has:
- active humidity system (often ultrasonic humidifier)
- cooling and heating devices for a wide range of work
- the ability to simulate dynamic climate change
In metrological research, a mapping of the working space is performed to confirm the homogeneity of the conditions. This is an element required for device validation.
In practice, queries such as "the best climate chamber" and the selection of "climate chamber dimensions" for a specific application are also used.
Mechanism of action and construction of the environmental chamber
The environmental chamber works on the basis of integrated cooling systems, electric heaters and a microprocessor PID controller that supervises the parameters in the interior.
Rapid temperature reduction is provided by a refrigeration system with an evaporator, which collects heat from inside the chamber and stabilizes the operating conditions. Electric heaters, on the other hand, are responsible for precisely raising the temperature in controlled cycles.
The PID controller plays a key role, which corrects the operation of heating and cooling systems on an ongoing basis, maintaining an even temperature profile without rapid fluctuations. Thanks to this, it is possible to maintain high repeatability of conditions.
The tightness of the chamber door is also important, which limits air exchange with the environment and protects the stability of the entire test process.
Test purpose of the temperature and humidity chamber
The temperature and humidity chamber allows you to perform programs with a variable, dynamic gradient of the microclimate in a given time.
In cyclical tests, the so-called temperature ramps are used, i.e. gradual changes in temperature over a certain period of time. They allow you to map the natural or accelerated aging conditions of materials and analyze their response to a changing environment.
Dynamic testing involves constantly changing parameters, as opposed to static testing, where one stable temperature and humidity level is maintained over a longer period of time. This makes it possible to compare the behavior of samples in different exposure scenarios.
High reproducibility of results is ensured by forced air circulation, which evenly distributes temperature and humidity throughout the chamber, eliminating local microclimate differences.
For whom will the climate chamber be the most advantageous choice
The climate chamber is an indispensable equipment in pharmaceutical laboratories, food processing plants and the automotive industry conducting adhesion tests of insulating coatings.
Climatic chambers are most often chosen by R&D (Research & Development) departments, managers of quality laboratories and certification bodies, which are responsible for checking the compliance of products with standards. It is these groups that use the test chamber as a basic element of the test infrastructure in assessing the durability of materials and products.
Main Applications (ROOT)
- Cosmetics aging tests, including processes such as flocculation
- conditioning of concrete samples and building materials
- study of changes in food dyes and stability of food products
Niche and advanced applications
- simulations of aviation conditions, including vibrations and vacuum
- assessment of the lifespan of photovoltaic (PV) panels in changing climates
- tests in combination with shock chamber and corrosion chamber devices
In industrial practice, the quality and R&D departments in the pharmaceutical and food sectors are particularly active in the modernization of space. Based on market experience in the integration of laboratory equipment, it is these units that most often invest in the expansion of aging zones and test systems.
Requirements and Load Capacity: Environmental Chamber Installation Evaluation
Safe installation requires verification of the load-bearing capacity of the ceiling and significant oversizing of ventilation systems to dissipate high heat gains from evaporators.
A climatic chamber is a heavy laboratory device, so at the planning stage it is necessary to checkthe load-bearing capacity of the floor and ceiling. It is not only the weight of the equipment that counts, but also the samples, which can significantly increase the load in large systems. This is part of the basic assessment of the laboratory infrastructure before the device is even placed in the room.
A common design mistake is underestimating ventilation. A chiller gives off a lot of heat, and if you don't take this into account in the design, the room starts to overheat. Therefore, the cooling system of a building must have a reserve of capacity and take into account real heat loads.
In smaller installations, water cooling is increasingly used, which relieves ventilation and stabilizes working conditions. This is a simpler and safer solution than oversizing the air conditioning.
There are also more demanding projects – e.g. the installation of a 1000-litre chamber on the upper floors. In such cases, it is necessary to strengthen the structure and meet the standard requirements, e.g. PN-EN 14056, so that the whole thing is safe.
In the end, it all comes down to one thing anyway: the room, the installations and the wall connections must be designed together, because only then does the chamber work stably and without the risk of overloading.
Advantages and disadvantages: the purpose of using a climate chamber in tests
The main advantage of the apparatus is strict adherence to the guidelines of the ICH Q1A standard, while the disadvantage remains the high energy demand in shock models.
The climatic chamber primarily servesas a stability testing chamber, i.e. it allows you to check how the products behave over time. This allows you to determine their durability and realistic shelf life, which is crucial in the pharmaceutical and cosmetics industry.
PROS
- very good thermal stability in fixed condition models
- high repeatability of results in long cycles
- Compliant with ICH Q1A guidelines
Cons
- high power consumption in dynamic and shock modes
- high operating costs for multi-stage tests
- the need for continuous power supply without interruptions (important for pharmaceutical audits)
In long-term drug testing, it is crucial to maintain uninterrupted conditions for many months. Any power outage can disqualify an entire test series, as it distorts the reliability of the results in validation processes.
In practice, two approaches are used: constant environmental conditions and shock tests, in which the parameters change in leaps and bounds. They differ in both the purpose and the load on the device – the shock versions are much more energy-intensive.
In the pharmaceutical and materials industry, chambers of this type are treated as basic testing equipment, especially where many years of stability and compliance with standards are required.
Verdict and final assessment: utilities and equipment connections
The investment brings measurable results, provided that a dedicated three-phase power supply and the supply of demineralized water with a conductivity parameter of less than 1 μS/cm are guaranteed.
A climate chamber only works properly if it has a well-prepared infrastructure. The most important thing is a stable three-phase power supply, technical drainage and access to water and service culverts. Without it, it is impossible to maintain repeatable working conditions.
Demineralized water (conductivity in μS/cm < 1) is very important, as it protects the humidification system from limescale and corrosion. Thanks to this, the system works stably and does not lose performance. Also important are the through-hole ports, which allow you to route sensors and cables without unsealing the chamber. This is a standard in quality control laboratories.
At the commissioning stage, the IQ installation qualification is performed, which confirms the correctness of the connections and compliance with the manufacturer's requirements.
FAQ
1. What materials and samples can be tested in the climate chamber?
The chamber is used to test, among m.in other things, for pharmaceutical substances, concrete, gaskets and electronic components. Their resistance to temperature, moisture, corrosion and aging over time is tested.
2. What does the accelerated aging test do?
It allows you to simulate years of product life in a few weeks. The results show, among m.in other things, color changes, loss of elasticity, and stability of ingredients, which helps determine shelf life and shelf life.
3. How long do stability tests take?
From a few months to even 2-3 years in the pharmaceutical industry. Continuous operation of the device is required, often with backup power, so as not to interrupt data writing.
4. Why are circadian cycles used?
To recreate the natural changes in the environment (day/night, temperature, humidity). Thanks to this, the tests better reflect the real conditions of use of the products.
5. How are electronics tested in climatic vacuum chambers?
Extreme temperatures, humidity and reduced pressure are combined. This allows the electronics to work in aviation and high-altitude conditions and detects insulation and cooling problems.
May 23, 2026