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7 Instructions on Commissioning and Maintenance
7.2.7 Faults During Ignition
Faults occurring during ignition may have 4 causes.
1 In case of additionally monitoring the pilot flame, the pilot flame may not sufficiently be de-
tected.
• Check the pilot flame for stable operation
• Check that the pilot flame is sufficiently visible within the viewing scope of the compact
flame detector, and change pilot burner adjustment if required.
• Realign the flame detector and check for cleanness of the viewing port
• Measure the flame radiation captured by the compact flame detector (chapter 7.2.4
Settings), and optimise alignment if required.
• Increase sensitivity if required.
2 Interference
Refer to chapter 7.2.6 Fault on Flame Detection
3 If the flame has trouble to start-up, a timely recognition of the flame may be hampered by
an excessive start-up suppression.
4 Defect in the device.
7.2.8 Faults During Operation
Faults occurring during operation may have 3 causes.
1 The main flame may not sufficiently be detected.
– Check the main flame for stable operation - provide for visibility throughout the oper-
ating range
– Check the compact flame detector for proper alignment and make sure that the view-
ing port
– Measure the flame radiation detected by the compact flame detector (chapter 7.2.4
Settings), optimise alignment if required
– Increase the sensibility if required
2 Interference
Refer to chapter 7.2.6 Fault on Flame Detection
3 Defect in the device.
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