2 general information – Xylem inoLab 7110 WASTEWATER pH METER User Manual

Page 47

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pH 7110

Glossary

ba75925e02

12/2011

47

12.2

General information

Specialist term

Description

Adjusting

To manipulate a measuring system so that the relevant
value (e. g. the displayed value) differs as little as pos-
sible from the correct value or a value that is regarded
as correct, or that the difference remains within the
tolerance.

AutoRange

Name of the automatic selection of the measuring
range.

Calibration

Comparing the value from a measuring system (e. g.
the displayed value) to the correct value or a value that
is regarded as correct. Often, this expression is also
used when the measuring system is adjusted at the
same time (see adjusting).

Measured param-
eter

The measured parameter is the physical dimension
determined by measuring, e. g. pH, conductivity or
D.O. concentration.

Measured value

The measured value is the special value of a measured
parameter to be determined. It is given as a combina-
tion of the numerical value and unit (e. g. 3 m; 0.5 s;
5.2 A; 373.15 K).

Molality

Molality is the quantity (in Mol) of a dissolved sub-
stance in 1000 g solvent.

Potentiometry

Name of a measuring technique. The signal (depend-
ing on the measured parameter) of the electrode is the
electrical potential. The electrical current remains con-
stant.

Reset

Restoring the original condition of all settings of a mea-
suring system.

Resolution

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

Stability control
(AutoRead )

Function to control the measured value stability.

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