© PCE Instruments
7
6.1
1-point calibration
6.1.1
The 1-point calibration must be selected in
the basic settings.
6.1.2
Rinse the electrode with distilled water.
Press the "CAL" key.
Depending on the setting, the display shows
"pH 7.00/CAL1" or "pH 6.86/CAL1".
6.1.3
Immerse the electrode in the pH 7.00 (or
pH 6.86) buffer solution with the end of the
electrode completely immersed in the calibration
solution. Gently stir the solution with the
electrode to obtain a homogeneous solution.
6.1.4
Press the "ENTER" key.
The meter starts the calibration.
6.1.5
After the measured value has stabilised,
the display shows "End".
The calibration is completed.