ENMET ISA-44-2OD - Manual (Page 9)

ISA-44-2-OD ENMET Corporation
5
Figure 3: Circuitry PC1 Channels 1 and 2
R48
TP3 Red
R52
R19
R46 R44
Relay
K3
Relay
K1
Relay
K2
TP5 Red TP4 Black
R3
R1
R4
R2
TP1 Red
TP2 Red
TB1
TB3
O
2
Channel
Relay
TB2
N.C. N.O.
COM.
N.C. N.O.
COM.
Channel 1
High Relay
N.C. N.O.
COM.
Channel 1
Low Relay
Sensor Heater
Orange Wire
Sensor Ground
Brown Wire
Sensor Signal
Blue Wire
(+)O
2
Sensor
Orange Wire
from ISB
(–)O
2
Sensor
Green Wire
from ISB
O
2
Alarm
Adjust
Low Level
Set
Full Scale
Adjust
Null Adjust
Purge Adjust
Meter Adjust
Heater Adjust
Low Alarm Set
High Alarm Set