Endura AZ20 series probe
Combustion oxygen monitor
4 Connections
20
IM/AZ20P–EN Rev. G
4.3 Electrical Connections
4.3.1 Endura AZ20 Probe Transmitter Connections
Referring to Fig. 4.3:
1. Unscrew and remove the probe end cap
A
.
2. Pass probe cable
B
through probe entry gland
C
taking care not to disturb the existing wiring
D
.
3. Remove terminal plug
E
from probe terminal block
F
.
4. Make terminal plug connections as shown in Table 4.1:
5. Carefully connect terminal plug
E
into probe terminal
block
F
taking care not to disturb the existing wiring
D
.
6. For probes fitted with AutoCal, proceed to Section 4.3.2,
7. For probes without AutoCal, tighten cable gland
C
.
8. Refit the probe end cap
A
and tighten hand-tight.
9. Refer to IM/AZ20E-EN for transmitter connections.
Notes.
Non-AutoCal probes are not fitted with the 6-way
AutoCal terminal block or pressure switch / solenoid
valve block.
For probes fitted with AutoCal, make standard
connections (steps 1 to 5), then AutoCal connections
as detailed in Section 4.3.2, page 21.
For non-AutoCal probes, retain the unused AutoCal
wires to allow for a future upgrade – see Table 4.2 for
AutoCal wire colors.
Terminal /
Cable Color
Tag ID
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
TC+
Thermocouple (+ve)
White
TC –
Thermocouple (–ve)
Light Yellow
(Sleeved Screens)
SCN
Screens 1 and 2
(Screens 1 and 2 must be
connected for correct
operation)
Brown
H
Oven
Blue
H
Oven
Table 4.1 Probe Transmitter Cable Connections
Fig. 4.3 Endura AZ20 Probe Transmitter Cable Connections
ACJC
F
C
A
E
B
D
Transmitter Terminal
Plug Connected
Cable
Color Label
Summary of Contents for Endura AZ20 series
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