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1. A pressure transmission device for transmitting the pressure of a process medium, comprising: a main body which has a surface; a separating membrane fastened to the surface; a pressure chamber formed between the separating membrane and the surface, which pressure chamber communicates with a hydraulic path via an opening in the surface; wherein the separating membrane is pressurized with the process medium from a first separating membrane side; wherein the pressure chamber and the hydraulic path are filled with a transmitting fluid in order to transmit the pressure of the process medium; wherein the separating membrane is a plate-shaped membrane with a circumferential edge, and the plate-shaped membrane is connected in a pressure-tight manner to the surface of the main body via one circumferential weld seam, and the separating membrane has a central middle region; wherein the pressure transmission device further comprises a temperature sensor for determining a temperature measurement variable of the process medium and a mount for the temperature sensor for improved heat transfer between the process medium and the temperature sensor; wherein the temperature sensor is at least partially inserted into or attached to the mount, wherein the mount is inserted into and arranged in a central recess in the main body behind the middle region of the separating membrane such that a surface of the mount facing the separating membrane lies in a plane relative to the separating membrane in the middle region, such that the surface of the mount serves as a stop surface for the separating membrane when pressure is applied.
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