12
7 CO/O
2
Control
Example for deactivated control if O
2
trim may not assume.
Example for active dynamic tests
D2 ... Dynamic test with 20 % change in correction, CO
e
120 ppm
I - O
2
actual value
II - CO
e
value
a Threshold position:
"-" → Reduce air
"+" → Raise air
b 11 → 11 optimisation steps are already car
-
ried out
c big letter "C" → optimisation with increasing
firing rate
small letter "c" → optimisation with decreasing
firing rate
O
2
actual value 0,7%
+
→ CO edge detected, air is increased, 4 optimising steps already carried out
c
→ small letter "c" means optimisation in the optimisation curve for reduced firing-
rate CO
e
50 ppm
Summary of Contents for ETAMATIC OEM
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