Design of an automatic monitoring system for biogas pressure based on PLC

To solve the numerous problems brought by over pressure in biogas pools/tanks, and to provide researchers with data to analyze the technical parameters in biogas fermentation studies, an automatic monitoring system for biogas pressure was designed with hardware such as a pressure transmitter etc. and on the basis of Programmable Logic Controller (PLC). The system realized the autocontrol of biogas pressure and had the function of collecting data. It could provide real-time dynamic data of fermentation and improve the safety of biogas in daily use.