| 摘要 |
PROBLEM TO BE SOLVED: To provide a housing for an analyzer capable of ensuring explosion-proof performance that satisfies conditions required for the installation in an explosive atmosphere.SOLUTION: A through hole 18 is provided on a recessed portion 16 and a through hole 19 is provided on a recessed portion 17 of a door part 12. A stud bolt 44 welded to a cover 40 engages with a metal nut 60 and a stud bolt 56 welded to a cover 50 engages with a metal nut 70. A printed circuit board to be attached to the door part 12 is attached with the nut 60 by using the stud bolt 44 of the cover 40. The cover 40 is grounded through the stud bolt 44, the nut 60 and a pattern of the printed circuit board, and is also grounded through the door part 12 and a ground connection part. The cover 50 is grounded through the stud bolt 56, the nut 70 and a ground wire which is not shown. |
