The EXPEC 1340 online analyzer is mainly used for online monitoring and analysis of material quality in the production process of assembly lines, real-time warning, and feedback of detection results to the control system for process control. The online analysis system adopts a split design, which separates the optical precision sensitive components from the measuring probes working on the production pipeline, which is beneficial for the protection of the optical system, extends the service life, and facilitates the operation and maintenance of the instrument circuit. The probes can be flexibly customized according to specific application conditions to achieve the best measurement effect. This system is suitable for various application fields such as grain and oil processing and brewing industry.