RKI Instruments 65-2320RK-100 - Manual (Page 6)

2 • 65-2320RK-100 Oxygen Transmitter
Description
This section describes the components of the oxygen transmitter. The oxygen transmitter
is a 4 - 20 mA type detector head. It consists of the oxygen detector, amplifier, and junction
box.
Figure 1: Oxygen Transmitter Component Location
Oxygen Detector
The sensing components of the detector are encapsulated within a conduit mounting
black anodized aluminum housing. Through a series of chemical and electronic reactions,
the detector produces a millivolt output that is proportional to the detection range. 3/4’’
NPT mounting threads at the top of the detector allow you to mount the detector to the
junction box or a 3/4’’ NPT conduit fitting. Two color-coded leads extend from the top of
the detector. The leads allow you to connect the detector to a controller.
Controller Terminal Strip
- Test Point (Black)
100mV - 500mV
Range
T
O
X
IC
OX
Y
SI
G
/PW
R
S
Amplifier
Detector Terminal Strip
ZE
R
O
SP
A
N
Zero Pot
Factory Adjust Pot
+ Test Point (Red)
Span Pot
J-Box
Oxygen Detector