RKI Instruments 65-2336RK - Manual (Page 9)

65-2336RK CO Transmitter • 5
Junction Box
Use the junction box to install the transmitter at a mounting site that is remote from the
controller. The junction box protects the amplifier and wiring connections made to the
amplifier. Use the top 3/4’’ conduit hub to connect wiring from the amplifier to the
controller. Use the cover on the front of the junction box to access the interior of the
junction box. The detector and amplifier are factory installed in the junction box. 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.
Installation
This section describes procedures to mount the CO transmitter in the monitoring
environment and wire the transmitter to a controller.
Mounting the CO 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 that is at normal breathing level.
Figure 3: Mounting the CO Transmitter
J-Box
3.10
.38
.75
Rubber
Spacers
3X
3/4 NPT
Female
3.65
1 1/2-20 Thread for Calibration Cup
CO Detector
8.20 Max