Device for the uv treatment of flowing fluids

A device for the UV treatment of fluids flowing in a flow channel, comprising;

• a plurality of cylindrical low-pressure mercury UV emitters that are arranged in groups in said flow channel, wherein longitudinal axes of said UV emitters are disposed substantially parallel to one another such that the UV emitters of a given group are disposed in a plane;
• at least one elongated sensor arrangement adapted to monitor an operating state of said UV emitters, wherein said at least one elongated sensor arrangement is spaced from and parallel to one of said groups of said UV emitters, wherein said at least one elongated sensor arrangement extends substantially transverse to said longitudinal axes of said UV emitters of the adjacent group, and wherein said at least one elongated sensor arrangement is provided with a separate UV sensor for each UV emitter of that group;
• and
• at least one unit connected with said at least one elongated sensor arrangement and adapted to control and/or regulate said UV emitters.