Xylem COND3110 HANDHELD CONDUCTIVITY METERS User Manual

Page 38

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Lists

Cond 3110

38

ba75792e02

11/2008

Reset

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

Resistance

Short name for the specific electrolytic resistance. It corresponds to
the reciprocal value of the electrical conductivity.

Resolution

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

Salinity

The absolute salinity S

A

of seawater corresponds to the relationship

of the mass of dissolved salts to the mass of the solution (in g/Kg). In
practice, this dimension cannot be measured directly. Therefore, the
practical salinity according to IOT is used for oceanographic
monitoring. It is determined by measuring the electrical conductivity.

Salt content

General designation for the quantity of salt dissolved in water.

Stability control

Function to control the measured value stability.

Standard solution

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

Temperature

coefficient

Value of the slope

of a linear temperature function.

Temperature

compensation

Name of a function that considers the temperature influence on the
measurement and converts it accordingly. Depending on the
measured parameter to be determined, the temperature
compensation functions in different ways. For conductimetric
measurements, the measured value is converted to a defined
reference temperature. For potentiometric measurements, the slope
value is adjusted to the temperature of the test sample but the
measured value is not converted.

Temperature function

Name of a mathematical function expressing the temperature
behavior of a test sample, a probe or part of a probe.

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.

α

T

Ref

=

Meas*

1

1 + a

(T -

)

*

T

Ref

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