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12
AW T4 20 |
U N I V ER S A L 4 - W I R E , D UA L- I N P U T T R A N SM I T T ER | C I/AW T4 2 0 - EN R E V. B
…5 Electrical installation
Digital I/O, relays and analog output
connections
Figure 10 Digital I/O, relays and analog output connections
Conductivity sensor module connections
2-electrode sensors
Sensor type
RTD wiring
DRIVE +
1
2
3
DRIVE –
4
RTD 1
5
RTD 2
6
SHIELD
7
RTD 3
8
2025, 2045
2077, 2078
2085, 2089
2-lead
Red
–
–
Black
Green/Yellow Blue
Brown
–
–
3-lead
Red
–
–
Black
Brown
Green/Yellow
–
Blue
2085*
2-lead
Red
–
–
Blue
Yellow
Dark green
–
–
TB2
2-lead
Green
–
–
Black
Blue
Yellow
Dark green
–
AC2xx
2-lead
Green
–
–
Black
Blue/Red
Yellow
Dark green
–
3-lead
Green
–
–
Black
Yellow
Red
Dark green
Blue
*2085 cable
attached
cells
4-electrode sensors
Sensor type
RTD wiring
DRIVE +
1
SENSE +
2
SENSE –
3
DRIVE –
4
RTD 1
5
RTD 2
6
SHIELD
7
RTD 3
8
TB4
2-lead
Green
Red
White
Black
Blue
Yellow
Dark green
–
+
–
+
–
Relay and analog outputs
Relays (1 to 4)
EXT PSU 12 to 30 V DC (150 mA max.)
Digital input (volt-free)
Analog outputs (1 to 4)
500
Ω
max.
Digital output (open collector)
Load
Load
N/O
COM
N/C
Load
DIO
DIO
DIO COM
DIO COM
PSU