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Reference Manual
July 2014 MAN-0081, Revision 4
12
3.2 Gas detection
In the following drawings, the
sensor wiring side refers to the wiring between the gas transmitter
and
the junction box terminals. The transmitter wiring side refers to wiring between the transmitter
and
the junction box terminals.
3.2.1 Models: Millennium II ST3 and SC3 sensor series
Sensor wiring
Terminal
Color
Function
1 (GND)
Green
Earth ground
2
White
Vdc (+)
3
Black
COM (-)
4
Red
A (Comm)
5
Blue
B (Comm)
6
Not used
7
Not used
Transmitter wiring
Terminal
Function
1 (GND)
Earth ground
2
Vdc (+)
3
COM (-)
4
Sig A
5
Sig B
6
Not used
7
Not used
Resistor (120 ohms)
JB-MPD-A/S
Note: Shield should be terminated
at the Panel/PLC/DCS/RTU