Metrohm tiamo 1.0 Manual - Manual (Page 338)

314 Method
5.6.5 Titration commands
Commands for titrations.
Modes
The following titration commands can be selected:
• DET
Dynamic Equivalence Point Titrations.
• MET
Monotonic Equivalence Point Titrations.
• SET
Set Endpoint Titrations.
• KFT
Volumetric Karl Fischer Titrations.
• KFC
Coulometric Karl Fischer Titrations with voltametric measurement.
DET
Command for Dynamic Equivalence Point Titrations ( DET ).
Principle
With this command titrations with dynamic incremental reagent addition are car-
ried out. The volume increments vary as a function of the slope of the curve. An at-
tempt is made to achieve constant measured value alterations with each reagent
addition. The optimal volume for dosing is determined from the measured value
alterations of the previous reagent additions. Measured value acceptance is drift-
controlled (equilibrium titration) or after a waiting period. Equivalence points are
evaluated automatically.
Note
As the reagent addition in
DET depends on the measuring data, the titration cur-
ve should not vary too much from an S-shaped curve.
Commands
Depending on the measured value one of the following four DET commands can
be chosen: