Metrohm 900 Touch Control Manual - Manual (Page 426)

29.12 Evaluations (EVAL)
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900 Touch Control
29.12.3 Minimum and maximum evaluation (EVAL MIN/MAX)
For the minimum or maximum measured value the associated volume,
time and temperature are interpolated from the measuring point list. The
evaluation begins as soon as the slope of the curve exceeds a particular
threshold value.
Threshold value
Minimum
Maximum
Measured value
Volume / Time
Figure 20 Evaluation of minimum and maximum
Evaluation
Selection whether the minimum or the maximum of the titration curve is
being evaluated. With a command either the minimum or the maximum
can be evaluated. If both values are needed, a second command has to be
defined in the method.
Selection Minimum | Maximum
Default value Maximum
Threshold value
The evaluation of the minimum or maximum begins as soon as the slope
of the curve exceeds the set threshold value. Use a lower threshold value
if the minimum or maximum is not found.
Measuring mode pH:
Input range
0.1 - 20
Default value 1.0
With titrations, the unit is pH/mL, with measure-
ments pH/s.
Measuring mode U, Ipol:
Input range
1.0 - 2000.0
Default value 25.0
With titrations the unit is mV/mL, with measure-
ments mV/s.