Patent ID: 7131335

Claim:
A device for transferring a pressure prevailing in a first medium onto a second medium, comprising: a platform; a dividing membrane, which is secured at its edge onto the platform, wherein a first surface of the dividing membrane, facing away from the platform, can be brought into contact with the first medium, and a second surface of the dividing membrane, facing toward the platform, forms with the platform a pressure chamber, which can be filled with the second medium, through which the pressure can be transferred to a pressure measurement cell; and an early warning detector with a sensor chamber having an opening facing the first medium; a sensor, which monitors a property of a medium contained in said sensor chamber; and a barrier, which pressure-tightly seals the opening and which has a surface which is in contact with the first medium, such that when equal conditions are experienced by said dividing membrane and said barrier, said barrier is designed to fail earlier than said dividing membrane, thus making possible a flow connection between said sensor chamber and the first medium, wherein: said sacrificial membrane and said dividing membrane are each secured with a weld seam, said weld seam of said sacrificial membrane, for a given first medium, is designed to fail earlier than said weld seam of said dividing membrane.