6 • 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
G
LE
L
B
W
R
Amplifier
Controller Terminal Strip
S
PW
R
/
S
IG
J-Box
IR CO2 Detector
Detector Terminal
Strip
Se
ns
or
Cu
rr
e
n
t
m
A
SP
A
N
Jumper Pins,
Factory Use Only
Factory Adjust Pot
Zero Pot
Span Pot
Factory Adjust Pot
ZE
R
O
- Test Point
+ Test Point
