22
pH CALIBRATION
CLEAN ELECTRODE WARNING
Each time pH calibration is performed, the instrument internally compares the new calibration with
the one previously stored.
When this comparison indicates a significant difference, the “Clean Electrode” warning message is
displayed to advise the user that the pH electrode may need to be cleaned (see ELECTRODE
CONDITIONING AND MAINTENANCE section for details, page 56).
After cleaning, perform a new calibration.
Note: If the calibration data are cleared, the comparison is done with the default values.
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