Constant temperature and humidity project (GMP workshop project)

Constant temperature and humidity control system is the key part of the constant temperature and humidity room engineering system, the quality accuracy of the control instrument is directly related to the quality accuracy of the whole constant temperature and humidity room project. The control system includes high precision, high sensitivity temperature and humidity control system and temperature and humidity sensing system.
Temperature and humidity control system: constant temperature and humidity control generally uses DDC or PLC intelligent control, the controller generally uses Siemens or Mitsubishi and other brands, according to the indoor sensor feedback signal to make the corresponding action, high intelligence, easy operation, rapid response and accuracy.
Temperature and humidity sensor: Select a proper sensor based on the temperature and humidity range and accuracy requirements. Commonly used temperature and humidity sensors general temperature range is -40-120 ° C, and the humidity range is 0~100%RH, the output signal has a diversity, generally 4-20ma,0-5V,0-10V and other common analog signals, and some also have 485 digital signal output. Stability of the control system
The correct and rapid action is the key to maintain the long-term normal operation of the constant temperature and humidity system.