65-2428 H
2
S Detector • 3
Installation
NOTE:
Normally, the H
2
S detector is shipped already installed in one of the bottom
conduit hubs of a controller and factory wired to the controller. If your detector is
already installed in a controller, use this section for reference only.
This section describes procedures to mount the H
2
S detector in the monitoring
environment and wire the detector to a controller.
Mounting the H
2
S Detector
1.
Whether you will mount the detector directly to a controller or to a junction box, select
a mounting site that is representative of the monitoring environment. Consider the
following when you select the mounting site.
•
Select a site where the detector is not likely to be bumped or disturbed. Make sure
there is sufficient room to perform start-up, maintenance, and calibration
procedures.
•
Select a site where the target gas is likely to be found first.
NOTE:
If your application does not require a specific mounting site, mount the detector
at approximately breathing level.
Figure 2: Outline & Mounting Dimensions
3/4 NPT
Shrink Tubing
1.62 Flats for
Wrench
2.25 Ref
1-1/2-20 For Calibration Cup
9.75 Ref
0.75
Ø 1.75
3.48
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