Lamtec ETAMATIC OEM - 7.9 O2 Trim Commissioning

47
7 O
2
Trim
Display of CO is replacing O
2
display values as soon as CO control is active.
Fig. 7-3 CO control display
Startup-Manager Display
Example:
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
Fig. 7-4 O
2
trim display Fig. 7-5 CO control display
I - O
2
actual value
II - CO
e
value
a Threshold position:
"-"  Reduce air
"+"  Raise air
b11  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