Conductivity Cell Calibration; Conductivity Measurement Method - Radiometer Analytical TitraLab 870 Reference Manual

TitraLab ®
Conductivity
cell calibration
Conductivity
measurement
method
Page 80
Refer to "Electrode calibration (conductivity)", page
Measurement method using a conductivity cell connected to the
TIM870 EC socket.
You enter the cell constant of the conductivity cell or detemine it by
calibrating the conductivity cell using a standard solution of known
conductivity against temperature.
Refer to "Cell constant (definition)", page
The TIM870 measures the G conductance of the sample then
calculates the κ conductivity using the K cell constant and the
following equation :
The conductivity determined at the sample temperature can be
corrected back to:
• a reference temperature of your choice (enter the reference tem-
perature and a variation coefficient expressed in %/°C),
• 25 °C by using a correction table based on the variations of the
conductivity against temperature for a natural water.
How to define a conductivity measurement method?
1. In the Main window, press 4 then 2 Edit method.
2. For Mode, select Measurement.
3. For Measurement, select Conductivity.
4. Edit the other parameters of this measurement method.
How to calibrate a conductivity cell?
Refer to "Cell constant (parameter)", page
Refer to "Electrode calibration (conductivity)", page
How to run a conductivity measurement method?
Refer to "Running a method", page
TitraLab 870 Reference Manual
75.
κ (in S -1
.
cm ) = K x G (in S)
216.
108.
74.
108.