The invention is directed to an improved sterilizing device for sterilizing of a fluid by UV-radiation. The case has movement preventing member capable of accommodating magnetic tape cassettes having different sizes for preventing a small one of the magnetic tape cassette from moving in the case, is provided at least at any one of the accommodating portion, the lid portion and the connecting portion. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. For a second spin, a second number of arrays is randomly determined, displayed, and evaluated to determine whether an award condition is present. Connecting elements are provided for removably anchoring the base plate of the worktable to the frame in the first working position.