Facilities and installations with electric measuring and controlling apparatus and instruments as well as electronic signal apparatus and instruments in the field of liquid analysis, in particular facilities and installations consisting of an assembly of the above mentioned apparatus and instruments, which are interconnected into a functional unit and affixed to a device such as a panel for example or built into a container; software for planning, bringing into service, controlling, maintaining and running the above mentioned installations and facilities; measuring apparatus (electric), analysis apparatus, not for medical purposes, namely apparatus and instruments for controlling, measuring and collecting waste water samples (waste water sample collector)