Metrohm tiamo 1.1 Manual User Manual

Page 485

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Commands

457

Minimum evaluation

on, [ off ]

For the minimum measured value the associated time and temperature are

interpolated from the list of measuring points) (see Titration commands -
Evaluation - Minimum/Maximum evaluation
).

Threshold value

0.1 ... [ 1.0 ] ... 20.0 pH/s

The evaluation of the minimum begins as soon as the slope of the curve
exceeds the threshold value.

Maximum evaluation

on, [ off ]

For the maximum measured value the associated time and temperature are
interpolated from the list of measuring points) (see Titration commands -
Evaluation - Minimum/Maximum evaluation
).

Threshold value

0.1 ... [ 1.0 ] ... 20.0 pH/s

The evaluation of the maximum begins as soon as the slope of the curve

exceeds the threshold value.

Break point evaluation

on, [ off ]

(Titrando only)

A breakpoint evaluation is used to determine sharp changes of direction in
the titration curve) (see Titration commands - Evaluation - Break point

evaluation).

EP criterion

0 ... [ 0.3 ] ... 1.0

Measure for the minimum sharpness of the break. The smaller the EP crite-
rion set, the more break points will be found. As this is a relative value re-
lated to the total measured value alteration, for a small measured value
range even small changes in the measured value can be evaluated as a

breakpoint.

Slope

0.0 ... [ 0.9 ] ... 10.0

Minimum difference between the slope before and after the breakpoint. The
smaller the difference, the more breakpoints will be found.

Smoothing factor

2 ... [ 5 ] ... 20

The higher the smoothing factor, the fewer breakpoints will be found.

Window

Measured value, Time, [ off ]

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 win-
dow. Only the first break point in the defined window will be recognized.

Lower limit pH

[ -20.000 ] ... 20.000

(for

Window

=

Measured value

)

Measured value for the lower limit of the window.

Lower limit

[ 0 ] ... 999999 s

(for

Window

=

Time

)

Time for the lower limit of the window.

Upper limit pH

-20.000 ... [ 20.000 ]

(for

Window

=

Measured value

)

Measured value for the upper limit of the window.

Upper limit

0 ... [ 999999] s

(for

Window

=

Time

)

Time for the upper limit of the window.

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