Control of gas path

The gas pipeline consists of high concentration CO2 steel cylinders, air pumps, pressure regulating valves, needle valves, solenoid valves, flow meters, and gas storage cylinders. (High concentration CO2 cylinders are to be provided by the user). When a certain pressure of high concentration CO2 gas is input, the flow rate and time control of the regulating valve, needle valve, and solenoid valve are used to ensure that a certain amount of CO2 gas enters the working chamber, achieving automatic control of the CO2 concentration value in the working chamber. This value is also displayed through the display circuit for easy observation and understanding. For the convenience of users in monitoring and sampling concentration during use, a sampling and monitoring port is installed on the back of the carbon dioxide incubator. Due to the use of fast and slow dual inflation method, the CO2 concentration in the working chamber of the CO2 incubator can be quickly restored without overshoot after opening and closing the door. InCO2 incubatorDuring the work process, a gas cylinder is used to replenish air in the studio to maintain a stable CO2 concentration value.

Humidity control

When the culture requires a certain level of humidity to be maintained in the studio, the carbon dioxide incubator is equipped with a water tray. Users can place a water tray in the studio during cultivation, and add an appropriate amount of distilled water to the tray to allow it to evaporate naturally in the studio. The relative humidity can generally reach 95%.

Temperature control

CO2 incubatorThe temperature controller consists of a Pt100 platinum resistor as the sensor, a digital control circuit, an LED digital display circuit, etc. When the sensor outputs a resistance signal proportional to the temperature, it is converted into a voltage signal and amplified by the circuit, which is then sent to the display circuit to display the measured temperature. Another route is sent to the comparator for comparison with the set value. When there is a deviation between the two, the output power of the thyristor power transistor is triggered to generate heat in the heating tube. When the deviation decreases to zero, the heat emitted by the heating tube also decreases until the heating stops. There are over temperature and water level alarm functions in the control circuit. When the displayed temperature exceeds the set value of 2.0 ℃, the temperature controller emits an audible and visual alarm signal, cuts off the output, stops heating, and prevents the temperature from continuing to rise; When the water level in the water tank is too high or too low, the water level controller emits an audible and visual alarm signal and cuts off the heating output. Only the water jacket CO2 tank has a water level alarm function!