Metrohm 746 VA Trace Analyzer - Manual (Page 247)

5.5 Operation
746 VA Trace Analyzer / 747 VA Stand
5-96
Softkeys Meaning
Pro-
cessed
Display of the processed curve (measured values after spike elimi-
nation and possible background compensation):
Valid measured values
k Spikes still present (can be removed manually in the
segment if need be)
¡ Invalid measured values (overflow) (can be removed
manually in the segment if need be)
I
U
k
In determinations with
PSAMODE, the proc-
essed curve can not be
displayed.
Smoothed Display of the smoothed curve (smoothing of the processed meas-
ured values), the calculated baseline and the results of the peak or
wave evaluation.
I
U
In a group of curves
the selected curve is
black, the remaining
curves are gray. The
displayed baseline
refers to the selected
curve.
Derived Display of the derived curve (1 st derivative of the processed meas-
ured values). A relative scaling in % is specified for the y axis.
dI/dU
U
In determinations with
PSAMODE, the derived
curve can not be dis-
played.
Subtrac. Display of the subtracted curve in addition to the smoothed curve
(the baseline is subtracted from the measured value curve).
I
U