Patent ID: 9012861
Filing Date: 2015-04-21
Classification: C02F,G01J,Y02A

Abstract:
1. A method for determining the degree of disinfection or for determining the time at which a defined degree of disinfection of a liquid, particularly drinking water, which is located inside a container that is transparent in at least one UV region, is reached, comprising the following steps: measuring the intensity of the UV radiation in the region of the container and determining values for UV intensity, weighting the values for UV intensity with one of: performing one of: using an analysis unit, converting the values for UV intensity, measured at defined points in time from the start of a measurement, to a characteristic value, characterized in that the analysis unit comprises a counter or is a counter, the counter reading of which increases per unit of time by a counter value which is proportional to the value for UV intensity measured in said unit of time, and in that the predetermined characteristic value corresponds to a defined value for the counter reading, multiplying the counter value by a proportionality factor that is dependent on the temperature, which proportionality factor takes on the value of 1 for a minimal temperature and for temperature values below the minimal temperature, and takes on a value greater than 1, dependent on the temperature, for temperature values above the minimal temperature, comparing the characteristic values calculated at defined points in time with a predetermined characteristic value, which predetermined characteristic value corresponds to a defined degree of disinfection of the liquid, and emitting a signal when the calculated characteristic value reaches or exceeds the predetermined characteristic value.