System and method for detecting and counting bacteria suspended in a biological fluid by means of light scattering measurements is provided. The memory module includes a memory interface, a program memory coupled to the memory interface, and a plurality of memoryprocessing units coupled to the memory interface and the program memory. Fuel is injected from both injection valves on fuel injection shares depending on a detected load on the engine. The third lens element with positive refractive power has a convex object-side surface and a convex image-side surface, and is made of plastic material, wherein the surfaces of the third lens element are aspheric. In addition, described are a corresponding finite-state machine and a computer program for automatically checking the availability, security, and reliability requirements.