- Pour the measuring solution into the measuring vessel (6.1428.030, 6.1428.100) and attach the measuring vessel cover with integrated conductivity measuring cell (6.0913.130).
- Deionized water is used as the measuring solution. Ultrapure water is not required. The conductivity at the start of the measurement should not exceed 20 µS/cm.
- When mounting the PTFE cannula (6.1819.080 + 6.1808.050) in the measuring vessel cover, you must ensure that the air is not fed onto the conductivity measuring cell during the later measurement. If gas bubbles are released onto the electrode, then the measurement curves will be noisy.