Hanna Instruments HI 98170 - Manual (Page 13)

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• The “ ” tag will blink on the LCD until the reading is stable.
• When the reading is stable and close to the
selected buffer, “CFM” tag blinks.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the
primary LCD and the secondary LCD will display
the second expected buffer value, together with
“CAL” and “Cal Point 2” tags.
• After the 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. 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, “CFM” tag blinks.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the
primary LCD and the secondary LCD will display
the third expected buffer value.
• 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. 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, “CFM” tag blinks.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the
primary LCD and the secondary LCD will display
the fourth expected buffer value.
• After the third calibration point is confirmed, immerse the pH electrode
and the temperature probe approximately 4 cm (1½”) into the fourth
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, “CFM” tag blinks.
• Press CFM to confirm calibration.
• The calibrated value is then displayed on the
primary LCD and the secondary LCD will display
the fifth expected buffer value.
LOG CFM
LOG CFM
LOG CFM
LOG CFM