horiba LAQUA 2000 Series, Instruction Manual

Page: 36 / 108

Conductivity Calibration
18
● Conductivity Calibration
Calibration is necessary for accurate electrical conductivity measurement. To perform
conductivity calibration using EC2000 or PC2000 meter, follow the procedure detailed below:
Prerequisites
• Clean the conductivity electrode with DI (deionized) water and wipe it with tissue paper.
• Switch on the meter and plug in the conductivity electrode.
• Prepare conductivity standard(s) required for calibration.
• Ensure that the meter is in COND mode.
• Dip the conductivity electrode in the conductivity standard until the hole at the upper part of
the electrode is immersed.
• Salinity, TDS, and resistivity of a sample solution are calculated from the measured value
of conductivity.
• In conductivity calibration mode, the default calibration method is auto calibration. If you
like to change it to manual calibration method, refer to “P1.3 Auto Calibration Setup” on
page 41.
• For second or multiple point calibration, clean the conductivity electrode with DI water and
follow the same procedure.
• If you are performing multiple point calibration, calibrate to the lowest conductivity first and
then move to increasing conductivity values. This minimizes cross contamination.
• To abort an ongoing calibration process at any point of time, press the key.
Note
Tip