20
• Immerse the pH and the temperature probe approximately 2 cm (0.8”) into the buffer paying
attention not to touch the stir bar.
To enter Electrode Calibration follow the next steps:
• Press
CAL
key then
Electrode
.
• The electrode calibration screen will be displayed.
• Press
Clear
to delete the previous calibration.
Point 1 calibration
• The 8.30 buffer will be selected by default. If necessary press the
ARROW
keys in order to
select a different buffer value.
• The
(unstable measurement) symbol will be shown on the display until the reading becomes
stable.
• When the reading is stable and close to the selected buffer, the
(unstable measurement)
symbol will disappear and the
Confirm
key will become active.
• Press
Confirm
to confirm the calibration or
ESC
to exit calibration.
• After the calibration point has been confirmed, press
ESC
to exit without performing the second
calibration point.
Point 2 calibration
• The calibrated value will be shown on the display and the second expected buffer value will be
displayed.
• Remove the electrode holder with electrodes from the top of the beaker.
