How do CO2 incubators control the concentration?

Carbon dioxide incubator is a device for the in vitro culture of cells/tissues by stimulating the formation of a similar cell/tissue growth environment in the organism in the incubator, the incubator requires stable temperature, stable CO2 level, constant pH, high relative saturation humidity.    

Control of CO2 concentration in CO2 incubators has much in common with CO2 temperature control.
1. Homogeneity of CO2 concentration and homogeneity of temperature.
2. Automatic calibration system for concentration control and temperature control system.
3. Concentration control is the difference between the two sensors (infrared and thermal conductivity), while temperature control is the difference in the way the temperature is controlled (water jacket and air jacket).    
CO2 gas concentration control in CO2 incubators.
CO2 incubator gas routing high concentration of CO2 cylinders, gas pumps, pressure regulator valves, needle valves, solenoid valves, flow meters, and storage cylinders and other components. When a high concentration of CO2 gas is input at a certain pressure, a certain amount of CO2 gas is guaranteed to enter the studio through the flow and time control of the regulating valve, needle valve and solenoid valve to automatically control the CO2 concentration in the studio. The value is also displayed through the display circuit for easy observation.
In order to facilitate the monitoring and sampling of the concentration in use, a sampling and monitoring port is installed on the back of the CO2 incubator. The fast and slow double inflation method allows the CO2 incubator to be opened and closed and the CO2 concentration in the workroom to recover quickly and without overshoot. During the operation of the CO2 incubator, the chamber is replenished with gas from a storage cylinder to maintain a stable CO2 concentration value.
The above is about how to control the concentration of carbon dioxide incubator, more information can be found on the official website of Kenton Instruments!

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