20
pH CALIBRA
TION
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 44).
After cleaning, perform a new calibration.
Note: If the calibration data are cleared, the comparison is done with the default values.
ELECTRODE CONDITION
The display is provided with an icon, and a numeric value (unless the feature is disabled) which gives
an indication of the electrode status after calibration.
The “condition” remains active until the end of the calibration day.
Note: The electrode condition is evaluated only if current calibration includes at least two
standard buffers.
