wtw Cond 3110 - Page 38

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