Which five systems are the constant temperature and humidity test chamber composed of? It is composed of control system, refrigeration system, heating system, humidity system and air circulation system, etc. The above system belongs to the two aspects of electrical and mechanical refrigeration.
1. Control System:
The control system is the core of the constant temperature and humidity test chamber, which determines the important indicators such as the rising and cooling rate and accuracy of the constant temperature and humidity chamber. The controller of LIB's constant temperature and humidity test chamber is mainly PID control, programmable, and can be preset according to customer's test requirements. At the same time, customers connect the computer to the machine controller through Ethernet, Wi-Fi and other ways to achieve remote control.
2. Refrigeration System:
The refrigeration system is one of the significant components of the constant temperature and humidity test chamber. In general, the refrigeration method is mainly to complete mechanical refrigeration, mechanical refrigeration is steam compression refrigeration, they are mainly composed of compressors, condensers, throttling mechanism and evaporator, constant temperature and humidity box refrigeration method is there are two, respectively, single-stage refrigeration and two-stage refrigeration. The temperature below -40 °C is generally better to two-stage refrigeration.
3. Heating System:
The heating system of the constant temperature and humidity test chamber is mainly composed of high-power resistance lines, which is simpler than the refrigeration system. Due to the high heating rate required by the chassis, the heating system power is relatively large, and the bottom plate of the test chamber is also equipped with a heater.
4. Humidity System:
The humidity system is divided into two subsystems: humidification and dehumidification
The humidification method is steam humidification, that is, low pressure steam is directly injected into the test space for humidification. This kind of humidification method has the advantages of fast speed and sensitive humidification control, especially when cooling down, it is easy to achieve forced humidification.
The method of dehumidification is to use heating wires to dry the moisture in the working room.
5. Air Circulation System:
The air circulation system of the constant temperature and humidity test chamber is composed of a centrifugal fan and a motor that drives its operation. It provides air circulation in the constant temperature and humidity test chamber. This ensures an even temperature and humidity in the studio.
LIB constant temperature and humidity test chamber
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IAEA inquired LIB and have specific requirements for relative humidity, and they demand the range of RH to reach 10%~98%. LIB replaced the original PT-100 Class A sensor with an E+E Capacitive sensor and achieved their requirement. They also asked LIB to add Spanish as a default language on the programmable controller. LIB achieved all they want.TH-100A was sent to UNDP (United Nations Development Program) in Argentina and then dispatched to IAEA. IAEA got everything they wanted and fulfilled all their needs, so they can't praise us enough and are very satisfied with the quality of the machine.
We are a China-based climate chamber manufacturers that specialize in UV chamber and other environmental testing solutions. If you are looking for a cost-effective constant temperature and humidity test chamber, then we will be your best choice, please contact us（info@libtestchamber.com）for more information about this device or other environmental test equipment.
