20190798
28
GB
Start-up, calibration and operation of the burner
5.6.4
Flame present check
The burner is fitted with an ionisation system which ensures that
a flame is present.
The minimum current for plant operation is 6 µA.
The burner provides a much higher current, so that controls are
not normally required.
However, if it is necessary to measure the ionisation current,
disconnect the plug-socket 1)(Fig. 5) on the ionisation probe
cable and insert a direct current microamperometer with a base
scale of 100 µA.
Carefully check polarities.
Fig. 35
D795
RMG/M
Summary of Contents for 20190698
Page 2: ...Translation of the original instructions...
Page 43: ......
