wtw MultiLab P5, Operation Manual

Page: 106 / 251

Conductivity measurement Conductivity measurement
106
BA61101/08.00/IWa/MLP5-E2 BA61101/08.00/IWa/MLP5-E2
107
Rinse measuring cell with a part of the sample
solution and immerse into the solution.
Temper sample to temperature 1 (= set reference
temperatureTref).
Ãmeth.
Âmenu
Á® 25.4°C
nlF 25
Conductivity menu.
TC nlF
®
documentation
¡C /cm
0.609
Menu"additional functions".
Tref 25°C
®
C 0.609 /cm
¡TC
nlF
Select temperature
function nlF.
Âmenu
TC Cal
¡TC
nlF
Entry to change of
temperature function.
Âmenu
TC nlF
¡TC Cal
TC Cal
: Select
determination of a linear
temperature function.
T1= 23.3°C
TC Cal
®1= 1034µS/cm
î2
Start procedure. Wait for
stable measurement.
T2= 23.3°C
TC Cal
®2= 1034µS/cm
à 3.21 %/K
Store pair of values 1.
Start determination of pair
of values 2.
Temper sample to temperature 2 (maximum 20°C
above start temperature).
T2= 49.2°C
TC Cal
®2= 1456µS/cm
à 3.21 %/K
Wait for stability of
measured value .
⇐
determined temperature
coefficient
Tref 25 °C
®
C 0.609 /cm
¡TC %/K
3.21
Accept calculated
temperature coefficient.
Back to menu "Additional
functions".
Ãmeth.
Âmenu
Á® 25.4°C
3.21 25
Back to conductivity menu.