Hach-Lange TITRALAB 840_845 Reference Manual - Manual (Page 180)

Titra Lab ® TitraLab 840 and 845 Reference Manual
Page 180
Smoothing
parameter The Smoothing parameter is a filter used in IP continuous method. It is
used to eliminate false inflection points that might appear on noisy
curves. Increasing the Smoothing parameter will decrease the ability
to detect weak inflection points. While determining the inflection point
of an IP Continuous method, the first derivative curve is smoothed
point by point as follows (s is the Smoothing parameter):
Figure 33: Smoothing process
Changing the smoothing parameter has no effect on the measure-
ment points, only on IP determination and result calculation.
The smoothing parameter will generally be set to 5 (default value).
You can increase this value to eliminate a weak IP.
Enter in:
Parameters menu of a Continuous IP method.
Range available:
0 to 20
Software
version The software version is displayed in the title bar of the setup menu.
The version is also displayed for a few seconds while switching on the
instrument.
x
x
x
x
x
x
x
V(n)
dE(n)
d Potential (or pH)/dVolume
dE(n+s)
dE(n-s)
V(n-s) V(n+s)
Volume
dE(n) =
dE(n+s) - dE(n-s)
V(n+s) - V(n-s)