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timothy87Aug 21, 2025
Why are dissolved oxygen readings inaccurate on EIJKELKAMP Measuring Instruments?
- MMelanie DayAug 21, 2025
Inaccurate or unstable dissolved oxygen readings on your EIJKELKAMP Measuring Instruments can stem from several causes: * There may be insufficient flow across the Galvanic DO membrane. Ensure a constant water flow whilst taking readings (does not apply to AP-900 & AP-1000). * The DO electrode may need calibrating, so recalibrate it. * The DO membrane may be dirty, so clean it. * The DO membrane may be worn out or damaged, so replace the DO membrane cap. * Calibration may have been carried out at an extreme temperature. Recalibrate at a temperature as close to the sample temperature as possible.