RKI Instruments 65-2397RK - Manual (Page 6)

2 • 65-2397RK CO
2
Transmitter
Description
This section describes the components of the CO
2
transmitter. The transmitter is a 4 - 20
mA type detector head. It consists of the CO
2
detector, amplifier, and junction box.
Figure 1: CO
2
Transmitter Component Location
Infrared CO
2
Detector
The CO
2
detector consists of the detector housing body, detector housing cap, cap gasket,
and the plug-in sensor.
PW
R
/ S
IG
S
Controller Terminal Strip
Amplifier
R
W
B
LE
L G
Detector Terminal
Strip
IR CO2 Detector
J-Box
ZE
R
O
Factory Adjust Pot
Span Pot
Zero Pot
Factory Adjust Pot
Jumper Pins,
Factory Use Only
SP
A
N
S
ens
or
Cu
rr e
n
t
m
A
+ Test Point
- Test Point