ABB Endura AZ20 series

Combustion Oxygen Monitor
Endura AZ20 Series Probe Appendix B – Probe Electrical Connections
48 IM/AZ20M–EN Rev. B
Appendix B – Probe Electrical Connections
B.1 AZ20 Probe Transmitter Cable Connections
B.2 AZ20/ZFG2 Replacement Probe
Transmitter Cable Connections
Note. Non-AutoCal probes are not fitted with the 6-way
AutoCal terminal block or pressure switch / solenoid valve
option.
Terminal / Cable
Color
Tag I D Tx Connection
Violet ACJC
Pt1000 Cold
Junction Compensation
Grey ACJC
Pt1000 Cold
Junction Compensation
Red Cell + Oxygen Input (+ve)
Black Cell – Oxygen Input (–ve)
Green T / C+ Thermocouple (+ve)
White T / C – Thermocouple (–ve)
Light Yellow SCN Screen
Brown H Heater
Blue H Heater
Table B.1 Probe Transmitter Cable Connections
Terminal / Cable
Color
Tag I D Tx Connection
Violet
Not Used
Grey
Red Cell + Oxygen Input (+ve)
Black Cell – Oxygen Input (–ve)
Green T / C+ Thermocouple (+ve)
White T / C – Thermocouple (–ve)
Light Yellow SCN Screen
Brown H Heater
Blue H Heater
Table B.2 Probe Transmitter Cable Connections
Fig. B.1 Probe Transmitter Cable Connections
Transmitter terminal
plug connected
to transmitter
terminal block
*Violet and grey cables not used on
AZ20/ZFG2 replacement probes.
*