Antenna connector for hazardous area

1. A fitting for connecting an antenna, comprising:

a housing defining first and second ends;

a hollow cavity between said first and second ends;

an antenna receptacle at said first end;

an electrical conductor at said second end;

a capacitive block circuit in said hollow cavity in electrical continuity with said antenna receptacle and with said conductor; and

at least one sealing compound encasing at least a portion of said capacitive block circuit inside said hollow cavity.

2. A fitting for connecting an antenna as recited in claim 1 , wherein said conductor is a coaxial cable.

3. A fitting for connecting an antenna as recited in claim 1 , wherein said antenna receptacle has external threads and projects from said first end.

4. A fitting for connecting an antenna as recited in claim 1 , wherein said sealing compound is a hazardous area sealing compound.

5. A fitting for connecting an antenna as recited in claim 4 , and further comprising a second sealing compound inside said hollow cavity, wherein said second sealing compound is an electrical potting compound.

6. A fitting for connecting an antenna as recited in claim 5 , wherein said second sealing compound encases at least a portion of said capacitive block circuit.

7. A fitting for connecting an antenna as recited in claim 6 , wherein said housing further defines an externally threaded portion adjacent said second end, and an integrally formed nut adjacent said first end.

8. A fitting for connecting an antenna as recited in claim 7 , wherein said housing is made from a corrosion resistant grade of stainless steel.

9. A fitting for connecting an antenna as recited in claim 6 , and further comprising a circuit board, which includes said capacitive block circuit, wherein said circuit board is inside said cavity.

10. A hazardous area enclosure, comprising:

an enclosure wall defining a safe area on one side of said wall and a hazardous area the other side of said wall, said wall further defining a threaded opening through said wall;

a fitting for an antenna, including

a single piece housing defining a first end; a second end which is externally threaded; a hollow cavity between said first and second ends; an antenna receptacle at said first end; and an electrical conductor at said second end, wherein said threaded second end of said housing is received in said threaded opening in said wall;

a capacitive block circuit in said hollow cavity, in electrical continuity with said antenna receptacle and with said conductor; and

at least one sealing compound encasing at least a portion of said capacitive block circuit inside said hollow cavity.

11. A hazardous area enclosure as recited in claim 10 , and further comprising an antenna mounted to said antenna receptacle.

12. A hazardous area enclosure as recited in claim 11 , wherein said antenna receptacle has external threads and projects from said first end.

13. A hazardous area enclosure as recited in claim 10 , wherein said sealing compound is a hazardous area sealing compound.

14. A hazardous area enclosure as recited in claim 13 , and further comprising a second sealing compound in said hollow cavity, wherein said second sealing compound is an electrical potting compound.

15. A hazardous area enclosure as recited in claim 14 , wherein said second sealing compound encases at least a portion of said capacitive block circuit.

16. A hazardous area enclosure as recited in claim 15 , wherein said housing further defines an integrally formed nut adjacent said first end.

17. A hazardous area enclosure as recited in claim 15 , wherein said housing is made from a corrosion resistant grade of stainless steel.

18. A hazardous area enclosure as recited in claim 15 , and further comprising a circuit board which includes said capacitive block circuit, wherein said circuit board is inside said cavity.

19. A hazardous area enclosure, comprising:

an enclosure wall defining a safe area on one side of said wall and a hazardous area the other side of said wall, said wall further defining a threaded opening through said wall;

a sealing fitting including a first sealing fitting end threaded into said threaded opening at said enclosure wall, and a second sealing fitting end;

a conduit defining a first and second conduit ends, said first conduit end being secured to said second sealing fitting end;

a one-piece housing defining a first housing end, a second, externally threaded housing end; a hollow cavity between said first and second housing ends; an antenna receptacle at said first housing end; and an electrical conductor at said second housing end; wherein said threaded second housing end is received in said second conduit end;

a capacitive block circuit in said hollow cavity, in electrical continuity with said antenna receptacle and with said conductor;

at least one sealing compound encasing at least a portion of said capacitive block circuit inside said hollow cavity; and

an antenna mounted to said antenna receptacle.