Vertically mounted differential pressure transmitter having an i

Details Vertically mounted differential pressure transmitter having an i Vertically mounted differential pressure transmitter having an i

1996-12-03

2000-03-21

Felber, Joseph L.

Measuring and testing

Fluid pressure gauge

With protective separator

G01L 700, G01L 900

Patent

active

060389273

ABSTRACT:
A pressure transmitter apparatus having a unitary body portion, separate diaphragms and flange elements and disposed within the body, a first and second normally vertical pressure passage. The first and second pressure passageways communicate respectively between first and second pressure openings extending normally horizontally through the body portion, and a transducer mounting element. The mounting element, coupled to the body portion and located above the pressure passageways, mounts a transducer that generates a differential pressure signal. One or a pair of diaphragm elements are configured to form first and second process diaphragms, closing first and second pressure openings. The flange element overlies the diaphragm element and is removably and replaceably secured to the body portion. The pressure transmitter also includes a flame retardation element that is disposed within at least one of the pressure passageways, and an overrange protection element, integrally arranged with the unitary body portion, that protects the transducer from overrange pressure fluctuations. Special flange plane geometries optimize size and sensitivity of isolation diaphragms.

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