ABB AWT420 - Conductivity Sensor Module Connections; 2-Electrode Sensors

AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
15
Standard sensors without diagnostic functions
NOTICE
Ensure sensor diagnostics are Off when using standard
sensors without diagnostic functions.
Sensor type RTD wiring
SENSE
1
GUARD
2
REF
3
S.GND
4
RTD 1
5
RTD 2
6
SHIELD
7
RTD 3
8
  Clear   Black Red White  
  Blue   Black Red White  

 Clear   Black
Red
Red
White  
 Clear   Black White Red  Red

 Blue   Black Red White  
 Blue   Black Red White  Grey



 Blue   Black Red White Yellow 
 Blue   Black Red White Yellow Grey

Standard sensors with diagnostic functions
NOTICE
Ensure sensor diagnostics are On when using standard
sensors with diagnostic functions.
Sensor type RTD wiring
SENSE
1
GUARD
2
REF
3
S.GND
4
RTD 1
5
RTD 2
6
SHIELD
7
RTD 3
8
  Blue Yellow Black Green Red White  

 Clear Red Blue Green/Yellow Red White  
 Clear Red Blue Green/Yellow Red White  Grey

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



 Red   Black Green/Yellow Blue Brown  
 Red   Black Brown Green/Yellow  Blue
  Red   Blue Yellow   
  Green   Black Blue Yellow  

 Green   Black Blue/Red Yellow  
 Green   Black Yellow Red  Blue
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
  Green Red White Black Blue Yellow  