During the fill level inspection by means of a camera system, a triggered image of each bottle is recorded and evaluated. The level control works in transmitted light mode in order to create an easily evaluable image for all beverage variations. The fill level is determined by measuring the fill level foam limit to the cap from top to bottom.
The HF level inspection system is used for bottles that cannot be X-rayed (e.g. painted bottles or clay bottles). The system consists of two temperature-compensated measuring heads, which are encapsulated in V2A housings and thus have protection class IP67. The two measuring heads together form a measuring bridge. The design of the measuring bridge compensates for foam so that the foam is included in the level calculation. An additional foam sensor is mounted for reliable detection of foamed bottles. In addition, the system can be equipped with an inductive sensor to check the presence of the closures.