Operating instructions

132
Components
Flue gas temperature sensor, part no. 7450 630
The sensor records the flue gas temperature and monitors the set limit.
Connection
See page 66.
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 test result with the
actual temperature (for scanning,
see page107).
Check the installation and replace
sensor, if necessary, in case of
severe deviation.
Specification
Protection: IP 60
Permiss. ambient
temperature
H during operation: 0 to +600 ºC
H during storage
and transport: 20 to + 70 ºC
5862730GB
0 40 80 120 160 200 240 280
Resistance in
500
540
580
620
660
700
740
780
820
860
900
940
980
1020
Flue gas temperature in ºC