5.6 Manual titration (MAT)
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14
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900 Touch Control
￭ Dosing inside the control range
The STAT controller compensates minimal measured value deviations
from the control point quickly by dosing in the control range faster
than for the SET controller.
Figure 7 Reagent dosing for STAT
5.6 Manual titration (MAT)
Manual titration is a titration mode that is suitable in particular for titra-
tions that are carried out conventionally manually with a Schellbach buret
or a Dosimat.
The reagent is added by manual dosing. The endpoint is detected by a
color change or with an electrode connected over a measuring signal. The
command always has to be canceled manually with the Cancel com-
mand button or with the [FILL] key on the Manual Dosing Controller.
An advantage of the MAT titration mode is that the manual reagent addi-
tion as well as the measuring signal can be recorded optionally. These data
points (time, volume, measured value) can be evaluated after the titration,
e.g. to assess the titration quality, especially the accuracy of reaching the
transition point.
In addition, the method can be equipped with further commands, e.g.
calculating a result, creating a report or scanning sample data.
The system is FDA compliant and enables a manual titration according to
the FDA guidelines with this mode.
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