Rki-instruments M2A Manual de usuario descargar pdf (Pagina 19)

M2A Transmitter Operator’s Manual 14

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.

• Select a site where the M2A 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. For lighter gases, mount the

detector near the ceiling; for heavier gases, mount the detector near the floor.

2. At the monitoring site, use #10 screws through the junction box’s two mounting holes to secure

the junction box to a vertical surface. Figure 11 - Figure 16 show the outline and mounting

dimensions for each version of the M2A. Mount the M2A with the detector facing down as

shown in the following figures.

Figure 11: Outline & Mounting Dimensions, Catalytic LEL

2.3 max

7.7 max

1.02

5.86

4.59

3/4 NPT

Conduit Hub

.47 (2X)

.30 (2X)

2.41

5.00

5.23

1 1/2-20 For

Calibration Cup

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 74 75

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Rki-instruments M2A Manual de usuario Pagina 19