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FOUR, THREE or TWO POINT CALIBRATION
• Proceed as described in “FIVE POINT CALIBRATION” section.
• Press CAL or ESC after the appropriate accepted calibration point. The instruments will return to
measurement mode and will memorize the calibration data.
ONE POINT CALIBRATION
Two SETUP selectable options are available for one point calibration: Replace and Offset.
If the Replace option is selected, the slopes between current buffer and nearest lower and higher
buffers will be reevaluated.
If the “Offset” option is selected, an electrode offset correction is performed keeping unchanged
the existing slopes.
• Proceed as described in “FIVE POINT CALIBRATION” section.
• Press CAL or ESC after the first calibration point was confirmed. The instruments will
memorize the one point calibration data and will return to measurement mode.
Notes: Press MTC or MODE key to toggle between pH buffer selection and the temperature
reading during calibration while temperature probe is not connected (MTC mode).
The displayed arrow is moving to the temperature value. Use / keys in order to
change the temperature.
ERROR SCREENS
Wrong buffer
The calibration cannot be confirmed.
The pH reading is not within range of the selected buffer. Select another buffer using the / keys
or change the buffer.
pH CALIBRATION
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