Key points for selecting a constant temperature and humidity incubator

The constant temperature and humidity incubator has a precise temperature and humidity control system, which can provide various environmental simulation conditions required for industrial research and biotechnology testing. It is suitable for environmental protection, health and epidemic prevention, drug testing, agriculture, animal husbandry, aquaculture and other scientific research, universities, and production departments. It is a specialized constant temperature and humidity equipment for water quality analysis and BOD testing, breeding experiments, and plant cultivation.
How to choose a suitable constant temperature and humidity incubator when purchasing one?
1. Performance and price
On the basis of fully verifying the technical parameters and reliability of the constant temperature and humidity incubator, cost-effectiveness is an important factor that should be considered. Imported constant temperature and humidity chambers are all sold domestically through agents, and the price factor not only depends on the manufacturer's costs and profits, but also includes many intermediate costs and sales commissions.
Reducing intermediate costs is an important factor in lowering order prices under the same manufacturing cost. Products with relevant technical indicators in the same country have similar manufacturing costs, and the constant temperature and humidity chambers produced in different countries (referring to developed Western countries) will not differ too much even if there are differences.
2. Functions that meet the needs
Ordering a constant temperature and humidity incubator requires different requirements for product testing. If some incubators are often used for product component or assembly and environmental stress screening tests, the forced dehumidification ability of the constant temperature and humidity incubator and the possibility of adding an air drying system are key points that users should be concerned about. If some users want to use the incubator for environmental testing (such as wet heat testing), the adjustability of wind speed is a factor that must be considered.
What parameter characteristics should be noted when choosing a constant temperature and humidity incubator?
1. Internal and external structure of the box
The internal and external structures of the box generally have the following requirements:
① The box body of the constant temperature and humidity incubator is processed and formed by CNC machine tools, making it easy to operate.
② Adopting a microcomputer temperature and humidity controller, the temperature and humidity control are precise and reliable.
③ The observation window is equipped with a lighting fixture to keep the inside of the box bright, and double-layer glass is used to clearly observe the situation inside the box at all times.
④ Equipped with an independent temperature limit alarm system, it automatically interrupts when the temperature limit is exceeded, ensuring the safe operation of the experiment without any accidents.
2. Incubator capacity
The volume of the incubator is also an important factor. As a comparable incubator, the larger the volume, the better. If possible, only 5-8 samples can be placed in 50L for cultivation and comparison. However, a 100L incubator can culture more than 12 samples of the same type simultaneously. Then it is possible to obtain the effects of different concentrations and reagents without distinction. Increased the accuracy and comparability of the experiment. It can also significantly reduce user operation time.
3. Temperature range of incubator
When cultivating some cell samples in an incubator, the first thing to consider is what temperature conditions you want the sample to be cultured under. Generally speaking, a temperature range of 20-60 ℃ is suitable. Most cells are cultured at around 33 ℃. Many samples that need to be tested require higher temperatures such as 65 ℃ or even 80 ℃ for cultivation, which need to be selected according to the user's own requirements.
4. Heating method of incubator
The heating method inside the incubator is also a concern for users. The mainstream heating methods can be divided into two types: water jacket type and electric heating film type. Electric heating film is used to directly heat and supply heat through the electric heating film attached to the inner wall, while water jacket type is used to heat the outer water layer and then heat the inside.
Both heating methods of the incubator have their own advantages. The electric heating film heats up quickly and can quickly reach the ideal temperature inside for cultivation. The water jacket type excels in stability. In the face of unexpected situations such as power outages, it can maintain the internal temperature for a long time without significant changes, thus maintaining the stable cultivation of the sample.

Generally speaking, the water jacket type is now widely used. There are also some materials such as stainless steel, which are currently of relatively high quality and have a decreasing impact on customers.
Comparison of common incubators