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Chapter 3 – Working with the titrator TitroLine
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3.6.3
Manual Titration
Manual titration is always performed using the "mouse". Manual titration is impossible without the "mouse". The
mV or pH reading will be displayed. The value can be selected in the "Titration parameter" menu item. In the
present case this is the pH value.
Fig. 45
Using <START>/<F1> or pressing the black key on the "mouse" will start the manual titration method.
Following the input of the sample description and/or the weight/volume (optional - please compare also the
explanations are regarding automatic titration in Chapter 3.6.1.), the following display will appear:
Fig. 46
You can control the metering rate with the black key of the "mouse". A single depression of the key will cause a
step up to the first level. Depending on the size of the interchangeable unit, this corresponds to 0.0005 ml (WA
05), 0.001 ml (WA 10), 0.002 ml (WA 20) and 0.005 ml (WA 50).
If one keeps the black key depressed on the first level, titration will be continued at a low rate. If you press the
nd
level) titration will proceed at a higher rate. The rate of the second level can be set in
black key fully down (2
five stages using the <↓↑> arrow keys. These stages can also be changed during manual titration.
Fig. 47