Interface between a sensor unit and an explosion resistant housing
AssigneeEndress + Hauser Flowtec AG
InventorsNikolai Fink, Markus Beissert, Frank Bonschab, Sr., Bjorn Larsson, Bruno Worreth
Life of this patent
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Abstract
An interface between a sensor unit and an explosion resistant housing, wherein arranged in the explosion resistant housing is a measurement amplifier. In the interface, which is simply manufacturable and, despite that, meets the requirements of explosion protection, the measurement amplifier is arranged on a plug unit formed in the sensor unit and preferably protruding inwardly into the explosion resistant housing.
Claims18
An interface between a sensor unit and an explosion resistant housing, wherein:
- arranged in said explosion resistant housing is a measurement amplifier;
- said measurement amplifier is arranged on a plug unit formed in said sensor unit;
- a sensor unit housing part surrounding said plug unit bears a screw thread, on which said explosion resistant housing is screwed on;
- and
- a locking element is provided on said housing for setting a predetermined twist position between sensor unit and said explosion resistant housing.
An interface between a sensor unit and an explosion resistant housing, wherein:
- arranged in said explosion resistant housing is a measurement amplifier;
- said measurement amplifier is arranged on a plug unit formed in said sensor unit;
- said plug unit includes at least two chambers for spatial isolation of conductors with different signals;
- and
- said conductors in said plug unit are potted for pressure resistant encapsulation.
An interface between a sensor unit and an explosion resistant housing, wherein:
- arranged in said explosion resistant housing is a measurement amplifier;
- said measurement amplifier is arranged on a plug unit formed in said sensor unit;
- said plug unit includes at least two chambers for spatial isolation of conductors with different signals;
- said conductors are led through a metal plate for achieving a pressure resistant encapsulation and a gas-sealed connection;
- and
- said conductors are insulated from said metal plate by means of welded glass.
An interface between a sensor unit and an explosion resistant housing, wherein:
- arranged in said explosion resistant housing is a measurement amplifier;
- said measurement amplifier is arranged on a plug unit formed in said sensor unit;
- said plug unit includes at least two chambers for spatial isolation of conductors with different signals;
- and
- said conductors are electrically shielded from one another by at least one metal web.
An interface between a sensor unit and an explosion resistant housing, wherein:
- arranged in said explosion resistant housing is a measurement amplifier;
- said measurement amplifier is arranged on a plug unit formed in said sensor unit;
- said plug unit is embodied socket like for manufacture of an electrical connection;
- and
- a plug carrying said measurement amplifier, is placed on said plug unit.
Dependencies are inferred from the claim text.