Interface between a sensor unit and an explosion resistant housing

1. 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.

2. The interface as claimed in claim 1 , wherein:

said plug unit is embodied plug- or socket like for manufacture of an electrical connection; and

a socket carrying said measurement amplifier, or a plug carrying said measurement amplifier, is placed on said plug unit.

3. The interface as claimed in claim 1 , wherein:

said plug unit includes at least two chambers for spatial isolation of conductors with different signals.

4. The interface as claimed in claim 3 , wherein:

said conductors are arranged grouped or isolated for positioning in said at least two chambers.

5. The interface as claimed in claim 3 , wherein:

said conductors are embodied as pin contacts, which are soldered in the region of said sensor unit with signal lines of a sensor.

6. 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.

7. 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.

8. 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.

9. The interface as claimed in claim 6 , wherein:

a sensor unit housing part surrounding said plug unit bears a screw thread, on which said explosion resistant housing is screwed on.

10. The interface as claimed in claim 9 , wherein:

a locking element is provided on said housing for setting a predetermined twist position between sensor unit and said explosion resistant housing.

11. The interface as claimed in claim 1 , wherein the plug unit protrudes inwardly into said explosion resistant housing.

12. The interface as claimed in claim 1 , wherein:

said plug unit is embodied plug like for manufacture of an electrical connection; and

a socket carrying said measurement amplifier carrying said measurement amplifier is placed on said plug unit.

13. 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.

14. The interface as claimed in claim 3 , wherein:

said conductors are embodied as pin contacts, which accept said socket carrying said measurement amplifier.

15. The interface as claimed in claim 3 , wherein:

said conductors are embodied as pin contacts, which accept said plug carrying said measurement amplifier.

16. The interface as claimed in claim 3 , wherein:

said conductors are arranged isolated for positioning in said at least two chambers.

17. The interface as claimed in claim 8 , wherein:

the at least one metal web is connected with ground.

18. The interface as claimed in claim 1 , wherein:

the screw thread is embodied explosion-resistantly.