METHOD FOR DETERMINING THE UV TRANSMITTANCE OF WATER

摘要

The invention relates to a method for determining the UV transmittance of water in a UV disinfection system through which water flows, wherein the UV disinfection system has a plurality of emitter assemblies (1) each comprising: a UV radiation source (2); a cladding tube (3) that surrounds the UV radiation source (2), which cladding tube has an end face (13) on one open end (12); and a UV-C sensor (6) which detects UV light emerging from the cladding tube (3) without the influence of the water. The UV disinfection system also has at least one further UV sensor (23), which is arranged at a distance from the cladding tubes (3) of the emitter assemblies (1), wherein the method has the following method steps: a) for at least one emitter assembly (1), measuring the UV radiant power emerging from the cladding tube (3) by means of the UV-C sensor (6); b) measuring a quantity of the transmitted radiant power by means of the at least one further UV sensor that is spaced apart from the UV radiation sources; c) determining the transmittance of the water by means of a quantity of the emerging radiant power and of the transmitted radiant power.