29.4 Volumetric Karl Fischer titrations (KFT)
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900 Touch Control
slow
For samples with a low water content or samples which release their
moisture only slowly.
optimal
For all standard titrations. The parameters have been optimized for the
most frequent applications.
fast
For uncritical samples with high water content.
user
The individual titration parameters can be modified.
The settings of the individual titration rates are listed in table 12, page
327.
User-defined parameters
These parameters are only accessible when Titration rate = user.
Dynamics
This parameter defines the control range before the specified endpoint.
Individual volume steps are dosed in the control range, the dosing is finely
controlled. The closer the endpoint, the slower the dosing until the vol-
ume increment defined under Min. increment has been reached. The
larger the control range, the slower the titration. Outside the control
range, dosing is carried out continuously, and the dosing rate is defined
under Max. rate.
The values that are actually measurable may vary from the values specified
here, depending on the hardware. The binding measurement value ranges
can be found in the "Technical specifications" chapter for the control
device used.
Measuring mode Ipol:
Input range
0.1 to 2,000.0 mV
Default value 100.0 mV
Selection off
Measuring mode Upol:
Input range
0.01 to 200.00 µA
Default value 10.00 µA
Selection off
Max. rate
Rate at which dosing is carried out outside of the control range.
Input range 0.01 to 166.00 mL/min
Selection maximum
Default value maximum
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