Xylem ProLab 1000 BENCH TOP pH METER User Manual

Page 90

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Lists

ProLab 1000

90

ba75576e04

01/2011

Potentiometry

Name of a measuring technique. The signal (depending on the
measured parameter) of the electrode is the electrical potential. The
electrical current remains constant.

Reset

Restoring the original condition of all settings of a measuring system.

Resolution

Smallest difference between two measured values that can be
displayed by a meter.

Slope

The slope of a linear calibration function.

Stability control

Name for a function to check the stability of the measured value.

Standard solution

The standard solution is a solution where the measured value is
known by definition. It is used to calibrate a measuring system.

Test sample

Designation of the test sample ready to be measured. Normally, a test
sample is made by processing the original sample. The test sample
and original sample are identical if the test sample was not processed.

Zero point

Designation for the offset potential of a pH electrode. It is the
measurable potential of a symmetrical electrode, the membrane of
which is immersed in a solution with the pH of the nominal electrode
zero point (pH = 7).

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