Hanna Instruments Edge HI 2020 User Manual

Operational Guide
26
When the reading is stable and close to the selected
buer, the “CFM” tag will blink. Press CFM to conrm
calibration.
After conrming the rst calibration point, the
calibrated value will be displayed on the rst LCD line
and the second expected buer value on the third LCD
line. (i.e. pH 4.01)
Rinse and submerse the pH electrode approximately
3 cm (1¼”) into the second buer solution and stir
gently.
If necessary, press the ARROW keys to select a dierent buer 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
buer, the “CFM” tag will blink. Press CFM to conrm calibration.
The calibrated value is then displayed on the rst LCD line and the third expected
buer value on the third LCD line.
After the second calibration point is conrmed, rinse and submerse the pH
electrode approximately 3 cm (1¼”) into the last buer solution and stir gently.
If necessary, press the ARROW keys to select a dierent buer 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 buer, the “CFM” tag will
blink. Press CFM to conrm 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 buer values or a single one.
Press CAL to return to measurement mode after the desired number of buers
have been calibrated.
Note:
• When performing a new calibration or adding to an existing calibration the
rst calibration point will be treated as an oset. See page 24 for details.
• Press CAL after the rst or second calibration point are conrmed and
the instrument will store the calibration data. Then it will return to
measurement mode.
• If the value measured by the instrument is not close to the selected buer,
“WRONG BUFFER” will blink. Check if the correct buer has been used or
selected.
pH
Calibration
w ww . . co m
information@itm.com1.800.561.8187

Hanna Instruments Edge HI 2020 Specifications

General

Brand	Hanna Instruments
Model	Edge HI 2020
Category	Measuring Instruments
Language	English