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65-2670-XX-04 M2A Transmitter Operator’s Manual
Chapter 3: Installation & Startup
Overview
This chapter describes procedures to mount the M2A Transmitter in the monitoring environment and
wire it to input power and devices.
Mounting the M2A Transmitter
1. Select a mounting site that is representative of the monitoring environment. Consider the
following when you select the mounting site.
•
For the M2A 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. Use #10
screws through the M2A junction box’s two mounting slots to secure the junction box to a
vertical surface. Figure 6 shows the outline and mounting dimensions the M2A junction box.
Figure 7 shows the outline and mounting dimensions for the detector junction box. Mount the
detector junction box with the detector facing down as shown in Figure 7.
Figure 6: M2A Junction Box Dimensions
.30 (2X)
4.59
5.86
1.02
3/4 NPT
Conduit Hub,
3X
5.00
2.41
.47 (2X)
5.23
