Xylem SI Analytics TitroLine 5000 Mode D'emploi page 125

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Linear titration
If linear titration control was selected, you have to define the step size.
Fig. 95
Linear step size can be set from 0.001 to 5.000 ml.
Fig. 96
Linear step width can also be set for end-point titration (pH and mV). In this type of titration, linear step
width is used after the first continuous titration stage.
Titration direction
The titration direction can be set to "increase" or "decrease". For instance, if you wish to perform a
total acidity titration to a pH value of 8.1 using NaOH, you have to select "increase". When titrating for
the alkalinity ("m value") to a pH value of 4.5 using HCl, you have to select "decrease".
Fig. 9