RKI Instruments 65-2405RK-05 - Manual (Page 8)

4 • 65-2405RK-05 Combustible Gas Transmitter
from a mounting surface and ensure that there is enough room to install a calibration cup
on the detector during calibration.
Installation
This section describes procedures to mount the combustible gas transmitter in the
monitoring environment and wire the transmitter to a controller.
Mounting the Combustible Gas 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 transmitter 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.
Figure 2: Mounting the Combustible Gas Transmitter
2. At the monitoring site you select, hang or mount the junction box with the detector
facing down (see Figure 2).
2.70 .38
J-Box
.75
Rubber
Spacer,
3X
3/4 NPT Female
3.65
LEL Detector
3/4 x 1/2
Reducing Bushing
7.5 MAX