Patent ID: 8198598

Claim:
A device for subjecting air to UV(C) radiation, wherein the device comprises: a housing with an air inlet and an air outlet; a UV(C) treatment chamber which is present in the housing and accommodates a UV(C) source which subjects passing air to a UV(C) treatment the effectiveness of which depends on an intensity of the UV(C) radiation and on a residence time of the air in the UV(C) treatment chamber; a measuring device for measuring a value of at least one parameter which is representative of the intensity of the UV(C) radiation and for generating a measurement signal corresponding to the value of the at least one parameter to an external processor, which measuring device comprises a process window that indicates limits of process effectiveness and corresponding limits of the intensity of the UV(C) radiation and the residence time of the air in the UV(C) treatment chamber; and which measuring device further comprises at least one of: (a) a temperature sensor which measures a temperature on a wall of the UV(C) source; (b) two temperature sensors for determining a heating of the passing air caused by the UV(C) source which are placed respectively downstream and upstream relative to the UV(C) source; and (c) a UV(C) sensor for determining the intensity of the UV(C) radiation at a selected position in the UV(C) treatment chamber; the UV(C) source comprising one or more UV(C) lamps which are held by a lamp holder that comprises terminal openings into which electrical terminal pins protruding from the one or more UV(C) lamps can be inserted, which terminal openings are connected to electrical supply wires with respective insulating sheaths, which electrical supply wires can be connected with their free ends to an electric power supply unit; and which measuring device is connected to electric signal wires with respective insulating sheaths, which electrical signal wires can be connected with their free ends to the external processor; the lamp holder (i) comprising positioning elements for positioning one or more UV(C) lamps in a fixed, defined position and (ii) holding the measuring device in a fixed position; and the electrical supply wires and the signal wires being arranged to be shielded from radiation from the one or more UV(C) lamps.