Patent ID: 7696490

Claim:
A device for the UV treatment of fluids flowing in a single flow channel, comprising: a plurality of cylindrical low-pressure mercury UV emitters that are arranged in groups in said single flow channel, wherein longitudinal axes of said UV emitters are disposed substantially parallel to one another and transverse to the flow of fluid in said single flow channel such that the UV emitters of a given group are disposed in a plane and the direction of the flow of fluid in said single flow channel is entirely transverse to the UV emitters; at least one elongated sensor arrangement also arranged in said single flow channel and 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.