6 • 65-2331-04 H
2
S Transmitter
Installation
This section describes procedures to mount the H
2
S transmitter in the monitoring
environment and wire the transmitter to a controller.
Mounting the H
2
S Transmitter
1.
Select a mounting site that is representative of the monitoring environment. Consider
the following when you select the mounting site.
•
For the amplifier junction box, select a site where the junction box is not likely to
be bumped or disturbed. Make sure there is sufficient room to perform start-up,
maintenance, and calibration procedures. The site should be easily accessible.
•
For the detector junction box, select a site where the target gas is likely to be found
first. For lighter gases, mount the detector near the ceiling; for heavier gases,
mount the detector near the floor.
•
The junction boxes should be mounted no further than 200 feet from each other.
2.
Amplifier junction box dimensions are shown in Figure 4. Detector junction box
dimensions are shown in Figure 5.
Figure 4: Amplifier Junction Box Dimensions
.38
2.70
3/4 Conduit Hub
Ø3.65
5.25
Rubber
Spacer,
3X
3/4 Conduit Hub
