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8 CO/O
2
Control
3. Delete the CO and O
2
optimisation curve by the buttons as shown below.
CO and O
2
optimisation curves are; the respective curve is deleted from the diagram. The dis-
play shows an empty diagram.
Deleting the optimisation curve by UI400 is described in chapter Deleting the O2 and CO Op-
timisation Curve .
Entering the O2 Setpoint Curve
Optimisation through adjustment of O
2
curves
1. Click the button .
2. Set the firing rate value using the arrow buttons and .
3. Adjust the O
2
value using the arrow buttons and .
4. Save the point using the button .
5. Set the O
2
setpoint value for all the supporting points of the fuel-air ratio curve.
You will find the recommended procedure for setting the fuel-air curve in the basic documen-
tation for this device (see Chapter
1.1 Validity of these Instructions ).
Fig. 8-19 Button for clearing O
2
curves Fig. 8-20 Button for clearing CO curves