wtw inoLab Cond 730, Operating Manual

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Lists Cond 730
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Glossary
AutoRead Monitors the electrode drift and releases the measured
value only after the stability criterion has been reached. In
this way, this procedure ensures the highest degree of pre-
cision and reproducibility.
Calibration The cell constant is determined through calibration. To do
so, the conductivity measuring cell is immersed into a series
of aqueous salt solutions with exactly known electric con-
ductivity. The relevant conductivity values are determined
using the conductivity measuring instrument.
Cell constant Linear factor describing the geometrical dimensions of a
measuring cell and its electrodes.

With the value of the cell constant you can roughly descri-
be the application range of a conductivity measuring cell.

The cell constant is determined through calibration in one
or several calibration solutions.
Conductivity The conductivity value is a sum parameter for the ion con-
centration of a test sample.
Control standard
solution
Solution with a known conductivity to determine or check the
conductivity.
Drift control See A
UTO
R
EAD
.
Reference
temperature
In order to compare values measured at different tempera-
tures, the values have to be converted to a fixed tempera-
ture. This temperature is 25 °C, or, as an exception, 20 °C.