Metrohm tiamo 1.2 Manual - Handbuch (Seite 396)

370 Method
With this button additionally to the always shown fix EP1...3 the fix EP4...9
are displayed.
With this button instead of fix EP1...9 only the fix EP1...3 are shown.
pK/HNP evaluation
on, [ off ]
With this evaluation from the titration curve the pK value can be determined
.which corresponds to the pH value at the half neutralization point (see Ti-
tration commands - Evaluation - pK value and half neutralization potential).
Minimum evaluation
on, [ off ]
For the minimum measured value the associated volume, time and tem-
perature are interpolated from the list of measuring points (see Titration
commands - Evaluation - Minimum/maximum evaluation).
Threshold value
0.1 ... [ 25.0 ] ... 2000.0 mV/mL
The evaluation begins as soon as the slope of the curve exceeds the set
threshold value.
Maximum evaluation
on, [ off ]
For the maximum measured value the associated volume, time and tem-
perature are interpolated from the list of measuring points (see Titration
commands - Evaluation - Minimum/maximum evaluation).
Threshold value
0.1 ... [ 25.0 ] ... 2000.0 mV/mL
The evaluation begins as soon as the slope of the curve exceeds the set
threshold value.
Break point evaluation
on, [ off ] (only Titrando)
With the break point evaluation sharp changes of direction in the titration
curve are determined (see Titration commands - Evaluation - Breakpoint
evaluation).
EP criterion
0 ... [ 0.3 ] ... 1.0
Measure of the minimum sharpness of the break point. The lower the EP
criterion set, the more break points will be found. As this is a relative value
related to the total measured value alteration, for a small measured value
range even small changes in the measured value can be evaluated as a
break point.
Slope
0.0 ... [ 0.9 ] ... 10.0
Minimum difference between the slope before and after the break point.
The smaller the difference, the more break points will be found.
Smoothing factor
2 ... [ 5 ] ... 20
The higher the smoothing factor, the fewer break points will be found.
Window
Measured value, Volume, Time, [ off ]
A range (window) can be defined on the measured value axis, on the vol-
ume axis or on the time axis. The break point evaluation will only be carried