A METHOD PERFORMED BY A CONTROL DEVICE FOR VERIFYING THE PERFORMANCE OF A UV-REACTOR, A CONTROL DEVICE, AND A UV-REACTOR

摘要

The invention relates to a method performed by a control device (100) for verifying the performance of a UV-reactor (4) for treating ballast water (14) in marine vessels (1), the UV- reactor (4) comprising: at least one UV-light source (28); at least one UV-light sensor (40); an inlet (24) and an outlet (26) for liquid (14, 16, 18); and the control device (100). The method comprising: controlling (s101) a cleaning process of the UV-reactor (4); controlling (s102) a flow of fresh water (16) into the UV-reactor (4) for filling the UV-reactor (4) with fresh water (16); recording (s103) a UV-intensity value from the at least one UV-light source (28) by the at least one UV-light sensor (40); comparing (s104) the recorded UV-intensity value with a setpoint UV-intensity value, the setpoint value being either a default value or is defined at commissioning of the UV-light source (28), and generating a user alert (s105), if the recorded UV-intensity value is lower than the setpoint value. The invention also relates to a control device (100) and a UV-reactor (4).