Owner manual

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 +
PWR/SIG
TOXIC OXY
+ - + -
RS 485
A B C
C NC NO
ALARM 1
C NC NO
ALARM 2
C NC NO
FAIL
Red
Black
- S +
PWR/SIG
TOXIC OXY
+ - + -
RS 485
A B C
C NC NO
ALARM 1
C NC NO
ALARM 2
C NC NO
FAIL
Red
Black
C NC NO
ALARM 1
C NC NO
ALARM 2
C NC NO
FAIL
- S +
PWR/SIG
TOXIC OXY
+ - + -
RS 485
A B C