Xylem Lab 960 - Manual (Page 71)

Lab 960 Lists
71 ba75557e05 11/2009
Standard solution The standard solution is a solution where the measured value is
known by definition. It is used to calibrate a measuring system.
TDS Total dissolved solids
Calculation: TDS (mg/l) = conductivity (µS) * TDS factor (mg/l*µS)
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 sensor or part of a sensor.
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