10 • 65-2422RK-05 H
2
S Transmitter
Figure 3: Mounting the H
2
S Transmitter
If the H
2
S detector is mounted to the junction box, skip to step 5. If not, continue with step 2.
NOTE:
The H
2
S detector is normally provided with a Killark HKB junction box and an HFC
lid rated explosion proof for Class I, Groups B, C, and D. This combination is shown
in Figure 2 above. Any junction box with an internal volume less than or equal to 69
cubic inches and rated explosion proof for ClassI, Groups B, C, and D may be used.
2. Remove the junction box cover.
3. Guide the two wires that extend from the top of the H
2
S detector through the bottom
conduit hub of the junction box.
4. Screw the H
2
S detector into the bottom conduit hub of the junction box.
5. At the monitoring site, use #10 screws through the junction box’s two mounting holes to
secure the junction box to a vertical surface.
CAUTION:
Mount the H
2
S transmitter with the detector facing down (see Figure 2).
Ø .25 M outing Holes ( 2X)
5.46
8.7 m ax
5.2
2.75
6.1
1.1
3.4 m ax
3/4 NPT Conduit Hub
3.94
