
Ignition and flame monitoring of gas burners marathon
®
M...
dreizler A 3001 E - 18.12.2015 | A 2009 - 1.15 | EN - 05.02.2015
68
19.3 Flame detection
19.3.1 Configuration and installation of ionisation electrodes
WARNING!
With the burner activated, the ionisation electrode is subjected to continuous voltage of
230V/50Hz.
Hazard of electric current.
Ensure disconnection of power supply to the unit before carrying out any work on the ionisation elec-
trode.
Comply with VDE contact regulations!
NOTICE:
The specified distance between ionisation electrode and flame tube must be adhered to.
The burner cannot start up if the electrode is in contact with the flame tube.
Configuration of ionisation electrode for marathon burner types
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M 121 - 5001.4
Fig. 19-7 Configuration ionisation electrode M 121 - M 5001.4
1
Ceramic part
2
Sensing electrode
3
Burner plate
4
Burner ring