Predictive
sensor system for predicting maintenance times and / or maintenance intervals and / or for detecting contaminants within a
piping system of a device
system for monitoring a temperature and / or consumption of beverages, e.g., still water and / or water enriched or infused with CO2 or O2, juices, milk, alcoholic or alcoholic beverages, etc., comprising at least one device for the germ-free dispensing of beverages, e.g., still water and / or water enriched or infused with CO2 or O2, juices, milk, alcoholic or alcoholic beverages, etc.and at least one tank element with at least one closable or self-closing opening which closes automatically after being removed from a connection of the device and opens automatically again after the tank element is placed on the connection, wherein an
air bubble within a fluid line of the device
system can be detected by means of at least one sensor, wherein the sensor can detect the
air bubble and / or contaminants in the fluid via a
detector window on or in the line.