Hanna Instruments Edge User Manual

Operational Guide
36
Procedure
Basic mode operation permits up to three-point buer calibration.
For accurate measurements, at least a two-point calibration is recommended.
However, a single point calibration can also be used.
The calibration buers can be selected from the calibration buer list that
includes the standard buers, pH 4.01, 6.86, 7.01, 9.18 and 10.01.
Three-Point Calibration
Submerse the pH electrode approximately 3 cm (1¼”) into a buer solution
and stir gently. Press CAL. 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, the “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.
pH
Calibration

Hanna Instruments Edge Specifications

General

Brand	Hanna Instruments
Model	Edge
Category	Multimeter
Language	English