Hanna Instruments Edge User Manual

Operational Guide
31
pH
Calibration
The custom buers allow the user to calibrate in a buer solution dierent
from a standard one. Two custom buers can be set in SETUP menu. See page
30 for more information about using custom buers.
The instrument will automatically skip the buer used during calibration
and the buers which are in a ±0.2 pH window, around one of the calibrated
buers.
Submerse the pH electrode approximately 3 cm (1¼”) into a buer solution
and stir gently. Press CAL to enter calibration.
The “CAL” tag will appear and the “7.01” buer will
be displayed on the 3rd LCD line. 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, “CFM” tag will blink. Press CFM to conrm
calibration.
The calibrated value will be displayed on the 1st LCD
line and the second expected buer value on the 3rd
LCD line.
After the rst calibration point is conrmed, 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.

Hanna Instruments Edge Specifications

General

Brand	Hanna Instruments
Model	Edge
Category	Multimeter
Language	English