Metrohm tiamo 1.1 Manual User Manual

Page 394

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366

Method

Measured value window (Upol)

Measured value windows are regions on the measured value axis for which
different parameters for the potentiometric evaluation can be defined. Only

those equivalence points which lie within these windows and additionally
meet the parameters defined for each window will be recognized. Per win-
dow only one EP will be recognized.

Lower limit

[ -200.0 ] ... 200.0 µA

Lower limit for the measured value window.

Upper limit

-200.0 ... [ 200.0 ]

µA

Upper limit for the measured value window.

EP criterion

0 ... [ 5 ] ... 200

Criterion for the recognition of equivalence points. Equivalence points
whose ERC is smaller than the set EP criterion will not be recognized.

EP recognition

Filter for the recognition of equivalence points (only Titrando):

first

Only the first equivalence point to be found will be recognized.

greatest

Only the equivalence point with the greatest ERC value, i.e. the steepest
jump, will be recognized.

last

Only the last equivalence point to be found will be recognized.

ascending

Only equivalence points with a positive slope of the titration curve will be
recognized.

descending

Only equivalence points with a negative slope of the titration curve will be
recognized.

Evaluation with volume window (mL)

Screenshot and parameters: see DET pH - Potentiometric evaluation

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