Metrohm tiamo 2.4 (process analysis) - Manual (Page 893)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Method
tiamo 2.4 (for Process Analysis)
￭￭￭￭￭￭￭￭ 877
NOTE
The parameters Max. rate and Dynamics pH should be optimized
together in such a way that the titration does not overshoot too much
when the control point is reached. The Dynamics should be selected in
such a way that the measured value remains within the control range
as much as possible while the control point is maintained. A slightly
larger control range should be defined for slow reactions (e.g. pH = 3).
The setpoint value is often set with a SET pretitration before the sub-
strate is added. This means that the STAT titration can be started
already with a small deviation from the control point.
5.6.3.8.6.5 STAT pH - Titration parameters
Tab: Method ▶ STAT pH ▶ Properties... ▶ Titration parameters
Command name
Name of the command.
Entry 25 characters
Parameters for the run of the titration.
Titration direction
Selection of the titration direction. If two endpoints are set, then the titra-
tion direction is already established and the following selection of titra-
tion direction is ignored.
Selection + | - | auto
Default value auto
+
positive measured value alteration
-
negative measured value alteration
auto
The titration direction is determined automatically from the start mea-
sured value and the set endpoint.
Temperature
Manually entered titration temperature. If a temperature sensor is con-
nected and the Temperature measurement is set on the General/
Hardware tab under Sensor to automatic or continuous, then the
temperature will be measured continuously. This value is used for temper-
ature correction in pH measurements.