Patent ID: 7131336

Claim:
A pressure transducer assembly for measuring the pressure in a process circuit of a process plant, said pressure transducer comprising: a flow control unit having a housing with a valve chamber, said valve chamber having an inlet and an outlet; said inlet of said valve chamber in communication with said process circuit; a valve member carried within said valve chamber, said valve member having an open position for allowing flow from said inlet of said valve chamber to said outlet of said valve chamber, and a closed position for preventing flow through said valve chamber; a pressure cell disposed adjacent said outlet of said valve chamber; a closed pressure circuit defined from the valve inlet, said valve chamber, and the valve outlet; a pressure sensor disposed in said pressure cell for measuring the pressure of said process circuit communicated through said closed pressure circuit when said valve member is in said open position; said outlet is directly downstream of said valve member, and said pressure sensor is directly downstream of said outlet so that minimum dead space is provided between said valve member and said pressure sensor.