41
7 O
2
Trim
7.4 Calling Fault History O
2
trim
7.4.1 Via Programming Unit
Display:
The display of O
2
history disappears automatically after 5 sec. O
2
controller faults lasting more
than 30 sec are stored. They are only stored in the EEPROM once the fault is cleared up or
the ETAMATIC OEM leaves the operating mode "Control" or "Base Firing Rate".
7.4.2 With User Interface
A key to call up all the text information is not necessary because a running text with all infor-
mation is displayed automatically.
press the keys 4 and 5 to browse the fault history
1
current fault
147
internal firing rate
1
curve set
000 487
running time hours
You can browse through the fault history with the ’up’ and ’down’ keys.
With the ’up’ key, you will need to browse through the last 10 burner faults
before you reach the last O
2
fault.
With the ’AB’ key, you can retrieve the oldest O
2
fault.
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