RKI Instruments 65-2482RK - Manual (Page 7)

65-2482RK Multi Point Detector • 3
Description
This section describes the multi-point detector. It consists of the detectors, the terminal
strip, and the junction box.
Detectors
This section describes the components of the various detectors that are used with each
model of the 65-2482RK.
61-0190RK-CH4 IR Detector
Figure 1: 61-0190RK-CH4 IR LEL Detector Component Location
The infrared LEL CH
4
detector is made up of a miniature infrared combustible gas LEL
CH
4
detector housed and encapsulated in a pipe nipple. The pipe nipple has 3/4” NPT
threads on each end and a 1 1/4” hex that allows removal or installation of the detector
with a wrench. A porous flame arrestor that is coated with a hydrophobic film that repels
liquids is on one end of the detector and allows sample gas to enter the detector. The flame
arrestor also contains any sparks which may occur within the detector. Four color coded
leads, red, white, green, and black, extend from the other end of the detector. The leads
allow you to connect the detector to the terminal block.
IR LEL CH4
Detector