Patent ID: 8127621

Claim:
Device for mounting in a fixed mounted frame ( 7 ) on a subsea pipe characterized by a locking device comprising a sensor housing ( 6 ), a spring ( 2 ) surrounding the sensor housing ( 6 ), at least one wedge ( 1 ) placed in one of the ends of the spring ( 2 ), and an edge ( 5 a ) placed in the other end of the spring ( 2 ), where the sensor housing ( 2 ) is arranged to be guided into the mounting frame ( 7 ), that a force ( 13 ) is applied in the longitudinal axis of the sensor housing ( 6 ) so that the spring ( 2 ) is compressed and the wedge(s) ( 1 ) are radial spanned out towards the mounting frame ( 7 ) to centre and support the sensor housing ( 6 ) in the mounting frame ( 6 ), the sensor housing ( 6 ) is designed to fit in the mounting frame ( 7 ), the at least one wedge ( 1 ) is arranged to function as acoustic barrier towards the mounting frame ( 7 ), and that the at least one wedge ( 1 ) is of a material with substantially less acoustic impedance than the metallic sensor housing ( 6 ).