RKI Instruments M2A - Manual (Page 25)

M2A Transmitter Operator’s Manual 20
Figure 22: Capillary Type Replaceable Sensor Oxygen Detector Wiring
• CSA type CO or H
2
S gas detector.
Red wire to terminal labeled TOXIC +, black wire to terminal labeled TOXIC -.
Figure 23: H
2
S/CO Detector Wiring, CSA
• Non Explosion Proof CO or H
2
S gas detector
Red wire to terminal labeled TOXIC +, black wire to terminal labeled TOXIC -.
Figure 24: H
2
S/CO Detector Wiring
White
Green
-
S
+
PW
R
/S
IG
TO
X
IC
O
X
Y
+
-
+
-
RS
4
8 5
A
B
C
C
NC
NO
AL
A R
M
1
C
N
C
N
O
AL
A R
M
2
C
NC
NO
FA
IL
Red
Black
-
S
+
PW
R
/S
IG
TO
X
IC
O
X
Y
+
-
+
-
RS
4
8 5
A
B
C
C
NC
N O
AL
A
R
M
1
C
NC
N
O
AL
A
R
M
2
C
NC
N
O
FA
IL
Red
Black
C
N
C
N
O
AL
A
R
M
1
C
N
C
N
O
AL
A
R
M
2
C
NC
N
O
FA
IL
-
S
+
PWR
/SI
G
T
O
X
IC
O
X
Y
+
-
+
-
R
S
485
A
B
C