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31
The “ ” along with “STIR” tag will be displayed and “WAIT” will blink on the LCD until the reading
is stable.
When the reading is stable and close to the selected buffer, the “CFM”
tag will blink. Press GLP/CFM key to confirm calibration.
After confirming the first calibration point, the calibrated value will be
displayed on the first LCD line and the second expected buffer value
on the third LCD line. (i.e. pH 4.01)
Rinse and submerse the pH electrode approximately 3 cm (1¼”) into
the second buffer solution and stir gently.
If necessary, press the keys to select a different buffer value.
The “ ” along with “STIR” tag will be displayed and “WAIT” will blink on the LCD until the reading
is stable. When the reading is stable and close to the selected buffer, the “CFM” tag will blink. Press
GLP/CFM key to confirm calibration.
The calibrated value is then displayed on the first LCD line and the third expected buffer value on
the third LCD line.
After the second calibration point is confirmed, rinse and submerse the pH electrode approximately
3 cm (1¼”) into the last buffer solution and stir gently.
If necessary, press the keys to select a different buffer value.
The “ ” along with “STIR” tag will be displayed and “WAIT” will blink on the LCD until the reading
is stable.
When the reading is stable and close to the selected buffer, the “CFM” tag will blink. Press
GLP/CFM key to confirm calibration.
At the end of calibration the instrument displays “SAVING”, stores the calibration value and returns
to normal measurement mode.
The calibration sequence may be reduced to two buffer values or a single one. Press CAL/MODIFY
key to return to measurement mode after the desired number of buffers have been calibrated.
Note: When performing a new calibration or adding to an existing calibration the first
calibration point will be treated as an offset. See page 29 for details.
Press CAL/MODIFY key after the first or second calibration point are confirmed and the
instrument will store the calibration data. Then it will return to measurement mode.
OPERATIONAL GUIDE
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