Description:The time required for the manometer ball float descending to reach the start level or descending from the start level to reach the stop level is longer than the specified range Function:System secures the manometer operation Check method:System checks that the time required for the manometer ball float descending to reach the start level is 4.0 seconds or less System also checks that the time required for the manometer ball float descending from the start level to reach the stop level is less than 9.0 seconds for WBC |