Hanna Instruments Edge - Page 32

Operational Guide
32
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.
Repeat procedure with additional pH buers. A total of ve pH buers can be
utilized.
After conrming the last desired buer calibration
points, press CAL or if all ve buer values were
calibrated the instrument will automatically display
“SAVING”, as it stores information and it will then
return to normal measurement mode.
Each time a buer is conrmed, the new calibration
data replaces the old data for the corresponding
buer or for any near buer in a ±0.2 pH proximity.
If current buer has no previous data stored and the
calibration is not full (ve buers), the current buer
is added to the existing calibration. If the existing
calibration is full, the instrument asks which buer
to replace.
Press the ARROW keys to select another buer to be replaced.
Press CFM to conrm the buer that will be replaced.
Press CAL to leave calibration without replacing.
Note: If the replaced buer is outside the ±0.2 pH window around each of the
calibrated buers, it is possible to select this buer for next calibration during
current calibration.
pH
Calibration