User Manual

FIVE-POINT CALIBRATIONFIVE-POINT CALIBRATION

FIVE-POINT CALIBRATION

• Immerse the pH electrode and the temperature

probe approximately 3 cm (1¼”) into a buffer

solution of your

choice (pH 1.68, 4.01, 6.86,

7.01, 9.18, 10.01, 12.45 or a custom buffer)

and stir the buffer gently. The temperature probe

should be close to the pH electrode.

• Enter pH calibration. The instrument will display the measured pH,

the LCD first expected buffer and the temperature reading.

• 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, Confirm

function key is displayed.

• Press Confirm to confirm first point.

• The calibrated value and the second expected buffer value is then

displayed on the LCD.

• After the first calibration point is confirmed, immerse the pH electrode

and the temperature probe approximately 3 cm (1¾”) 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.

3 cm