Method and device for non-destructive testing of a penetration of a reactor pressure vessel lid

In a reactor pressure vessel having a depositing ring, a lid being disposed on the depositing ring and having an interior, a penetration in the form of a connector welded in the lid, a bush penetrating and being supported on the connector, defining an annular gap between the connector and the bush, and the bush having a lower end extending further into the interior of the lid than the connector,

• a device for non-destructively testing the penetration, comprising a manipulator disposed inside the depositing ring, a frame supported on said manipulator, lockable floating bearings on said frame, a housing carried by said bearings, a rotary plate received by said housing, a lifting cylinder having a free end and being eccentrically associated with said rotary plate, said lifting cylinder being vertically adjustable and carrying out a rotary movement of said rotary plate, a probe, and a probe drive disposed at said free end of said lifting cylinder for moving said probe in an axially parallel direction relative to the connector.