Metrohm viva 1.1 (ProLab) - Manual (Page 539)

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5 Method
viva 1.1 (for process analysis)
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Break point evaluation
Break point evaluation
on | off (Default value: off)
If this check box is activated, then sharp, almost 90° changes in directions
in the measurement curve will be evaluated.
EP criterion
Measure of the minimum sharpness of the break point. The smaller the EP
criterion set, the more break points will be found. As this is a relative value
related to the total measured value change, even small changes in the
measured value can be evaluated as a break point for a small measured
value range.
Input range 0.0 - 1.0
Default value 0.3
Slope
Minimum difference between the slope before and after the break point.
The smaller the difference, the more break points will be found.
Input range 0.0 - 10.0
Default value 0.9
Smoothing factor
The higher the smoothing factor, the fewer endpoints will be found.
Input range 2 - 20
Default value 5
Window
A range (window) can be defined on the measured value axis or on the
time axis. The break point evaluation will only be carried out in the
defined window. Only the first break point in the defined window will be
recognized.
Selection Measured value | Time | off
Default value off
Lower limit
Measured value for the lower limit of the window.
Time for the lower limit of the window.
Window = Measured value
Input range
0 - 4,000 mAU
Default value 0 mAU