© PCE Instruments
8
6.2
2-point calibration
6.2.1
The
2-point calibration must be selected in
the basic settings.
6.2.2.
Carry out the calibration of the first
calibration point as described under 6.1.2.
…
6.1.4.
The display shows "CAL 2".
6.2.3
Rinse the electrode with distilled water.
Immerse the electrode in the pH 4.01 or pH
10.01 (pH 9.18) buffer solution with the end of
the electrode completely immersed in the
calibration solution. Carefully stir the solution
with the electrode to obtain a homogeneous
solution.
6.2.4
Press the "ENTER" key.
The meter automatically detects the selected
calibration liquid and starts the calibration.
6.2.5
After the measured value has stabilised,
the display shows the slope of the electrode in
% and then displays "End".
The 2-point calibration is completed.
