Xylem SI Analytics TITRONIC 500 Manual De Instrucciones página 125

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If you select «Edit formula» and confirm it with <ENTER>/<OK> the currently selected formula is displayed
(Fig. 89).
Fig. 83
The formula (EQ1-B)*T*M*F1/W*F2) can now be changed and confirmed with <ENTER>/<OK> after the change.
If you leave the editor with <ESC> the formula remains unchanged.
You can use the backspace key  to delete the formula characters from the end (Fig. 84) or use the curser left
and right keys to select the locations and then use the <DELETE> key to delete the selected formula character or
a value (Fig. 85 and Fig. 86).
Fig. 84
Fig. 85