62
Components
Flue gas temperature sensor,
part no. 7450 630
Connection
The sensor is plugged into socket 15
at the control unit.
Checking the flue gas temperature
sensor
1.
Pull plug
aG
.
2.
Check the sensor resistance at
terminals 1 and 2 of the plug.
3.
Compare the measurement with
the actual temperature (for
scanning, see page31).
Check the installation and replace
sensor, if necessary, in case of
severe deviation.
Specification
Protection:
IP 60
Permiss. ambient
temperature
H
in operation:
0 to + 600
º
C
H
during storage
and transport:
20 to + 70
º
C
5862700GB
0
40
80 120 160 200 240 280
R
esistance in
500
540
580
620
660
700
740
780
820
860
900
940
980
1020
Flue gas temperature in
º
C