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24
CALIBRA
TION
If necessary, press the / keys to select a different buffer value.
The “ ” tag is displayed blinking until the reading has stabilized. When the reading is stable
and within range of the selected buffer,
CFM
functional key is displayed.
3. Press
CFM
to confirm first point. The instrument displays the calibrated value and the second
expected buffer.
4. After first calibration point is confirmed, immerse the pH electrode and the temperature probe
approximately 4 cm (1½”) into the second buffer solution and stir gently.
If necessary, press the / keys to select a different buffer value.
The “ ” tag is displayed blinking until the reading has stabilized. When the reading is stable
and within range of the selected buffer, the
CFM
functional key is displayed.
5. Press
CFM
to confirm the calibration point. The instrument displays the calibrated value and the
third expected buffer.
6. After the second calibration point is confirmed, immerse the pH electrode and the temperature
probe approximately 4 cm (1½”) into the third buffer solution and stir gently.