Hanna Instruments HI 2214 - Manual (Page 11)

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• The calibrated value will be displayed on the primary LCD and the
second expected buffer value on the secondary LCD.
• After the first calibration point is confirmed, submerse the pH
electrode and the temperature probe approximately 3 cm (1¼”) into
the second buffer solution and stir gently. The temperature probe
should be close to the pH electrode.
• If necessary, press the ARROW keys to select a different buffer value.
• The “ ” tag will blink on the LCD until the reading is stable.
• When the reading is stable and close to the selected
buffer, the “ READY” tag will be displayed and the
“ CFM” tag will blink.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the primary
LCD and the third expected buffer value on the
secondary LCD.
• After the second calibration point is confirmed, submerse the pH
electrode and the temperature probe approximately 3 cm (1¼”) into
the next buffer solution and stir gently. The temperature probe
should be close to the pH electrode.
• If necessary, press the ARROW keys to select a different buffer value.
• The “ ” tag will blink on the LCD until the reading is
stable.
• When the reading is stable and close to the selected
buffer, the “ READY” tag will be displayed and the
“ CFM” tag will blink.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the primary LCD and the
fourth expected value on the secondary LCD.
• After the third calibration point is confirmed, submerse the pH electrode
and the temperature probe approximately 3 cm (1¼”) into the
next buffer solution and stir gently. The temperature probe should
be close to the pH electrode.
• If necessary, press the ARROW keys to select a different buffer value.