Patent ID: 6038927
Filing Date: 2000-03-21
Classification: G01L

Abstract:
Pressure transmitter apparatus comprisingA. unitary body means having, in a first orientation,(1) vertical surface means extending along a first vertical axis and apertured with first and second pressure openings disposed at substantially the same vertical location, and(2) transducer mounting means coupled to said body means and located, in said first orientation, vertically above said pressure openings,B. diaphragm means forming first and second process diaphragms respectively closing said first and second pressure openings,C. flange means removably and replaceably secured to said body means overlying said diaphragm means, said flange means forming first and second pressure ports for coupling first and second pressure inputs to said first and second process diaphragms, respectively,D. first and second pressure passages vertically extending at least partly within said body means for communicating respectively between said first and second pressure openings and said traducer mounting means,wherein said flange means includes a selectively closed further opening formed therethrough and offset along said first vertical axis and from said first and second pressure openings, said flange means being adapted to be invertably mountable over said vertical surface means in a draining position and alternatively in a purging position, for disposing said further opening for draining liquid when mounted in said draining position and for disposing said further opening for purging gas when mounted in said purging position.