Bosch WTD 15-4 AME 23 - Ionization Electrode

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1.12 Ionization electrode
Flame is sensed through an ionization electrode, and detection is granted for ionization
currents [higher than 8 µA]
Pict.29 – Ionization electrode and its sealing element
2
nd
Ignition Sequence
Safety Time of 31 sec
1
st
Attempt
(5 sec)
Purge Period
(3 sec)
2
nd
Attempt
(5 sec)
Purge Period
(3 sec)
3
rd
Attempt
(5 sec)
Pos Purge
(10 sec)
+
+
+
3
rd
and last Ignition Sequence
Safety Time of 41 sec
1
st
Attempt
(5 sec)
Purge Period
(3 sec)
2
nd
Attempt
(5 sec)
Purge Period
(3 sec)
3
rd
Attempt
(5 sec)
Pos Purge
(20 sec)
+
+
+
EA Error
Code