GDS Corp GASMAX CX, Operation And Maintenance Manual

Page: 10 / 28

GASMAX CX + GDS-IR Operation & Maintenance Manual, Revision 1.0
Page 10
LOCAL GDS ‐ IR SENSOR WIRING
A GASMAX CX with local GDS ‐ IR sensor is pre ‐ wired at the factory as shown below. The GASMAX CX
includes a sensor personality board that adapts the GDS ‐ IR wiring to the GASMAX CX inputs and provides
a magnetic switch that allows the user to perform the “IR Zero” function without opening the enclosure.
Figure 3-4: GASMAX CX + GDS-IR Local Sensor Wiring Diagram
REMOTE GDS ‐ IR SENSOR WIRING
Wiring between the GASMAX CX and a remote GDS ‐ IR sensor is provided by the customer. The interface
requires a four ‐ conductor shielded cable as shown below. The remote junction box provides both a
magnetic switch and local pushbutton for the “IR Zero” function.
Figure 3-5: GASMAX CX + GDS-IR Remote Sensor Wiring Diagram
CO
M
420
OU
T
2
420
OU
T
1
PW
R
R/
P
W
R
C/
4
20
IN
1
A
/CO
M
42
0
IN
2
CH 1 CH 2
E
‐
NE
T
LOCAL
SENSOR
TO DISPLAY
Black Wire – Common Ground
Blue Wire – Sensor 4 ‐ 20mA Output
White Wire ‐ IR Zero Input
Red Wire ‐ +18 to +30VDC Input
Important – Remove DC power before connecting or
disconnecting any wiring to / from the GDS ‐ IR
Sensor
Personality
Board
Sensor
Personality
Board
Remote
GDS ‐ IR
Sensor
Remote
Sensor
Junction
Box