RKI Instruments 65-2515RK - Manual (Page 7)

65-2515RK Oxygen Detector • 3
Junction Box
The junction box allows you to install the oxygen detector at a mounting site that is
remote from a controller and it protects the detector wiring connections. Two conduit
hubs allow you to mount the oxygen detector to the junction box and route the wiring
from the detector to a controller. Three spacers installed on the back of the junction box
control the distance of the junction box from a mounting surface and ensure that there is
enough room to install a calibration cup on the detector during calibration.
A terminal block within the junction box facilitates the wiring process. A cover on the
front of the junction box allows access to the interior of the junction box.
Installation
This section describes procedures to mount the oxygen detector in the monitoring
environment and wire the detector to a controller.
Mounting the Oxygen Detector
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 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 that is at normal breathing level.
Figure 2: 65-2515RK Outline & Mounting Dimensions
Rubber Spacers,3X
.38
.75
3.2 Max
1 1/2-20 T hread for
Calibration Cup
3/4 NPT Conduit
Hub
2.7
3.62
8.35 Max