
GASMAX CX Operation & Maintenance Manual, Revision 1.0
Page 20
CONNECTING
A
REMOTE
GDS
‐
IR
INFRARED
SENSOR
GASMAX
CX
monitors
with
remote
‐
mount
GDS
‐
IR
sensors
are
shipped
in
two
pieces
and
sensor
wiring
must
be
installed
by
the
end
user.
GDS
‐
IR
sensors
can
be
mounted
up
to
500
feet
from
the
GASMAX
display.
Cable
used
should
be
three
‐
wire
stranded
with
foil
shield
.
GDS
Corp
recommends
Belden
B8771.
The
cable
shield
must
be
connected
to
an
earth
ground
at
ONE
END
ONLY.
In
this
configuration
the
zero
‐
set
pushbutton
is
located
in
the
GDS
‐
IR
remote
mount
junction
box.
Figure 4-11: Remote GDS-IR Connection
TB1
PW
R
A
ZE-
TB2
CO
CO
M
42
0
OU
T
2
42
0
OU
T
1
PW
R
R/
P
W
R
C/
4
20
IN
1
A/
C
O
M
42
0
IN
2
CH
1
CH
2
E
‐
NE
T
LOCAL
SENSOR
TO DISPLAY
RED:
+18
‐
30VDC
Power
BLU:
4
‐
20mA
Analog
Out
BLK:
Power
Common
WHT:
Hardware
Zero
GASMAX
CX
GAS
MONITOR
REMOTE
GDS
‐
IR
SENSOR
CUSTOMER
‐
SUPPLIED
4
‐
CONDUCTOR
SHIELDED
WIRING
#18
GA
OR
LARGER
RECOMMEND