6
2 points calibration
2.1
Make sure that you have selected 2 points calibration in the setup menu.
2.2
Repeat the steps 1.2 to 1.4 above. When the first calibration point is completed,
the display will show CAL2.
The meter prompts you to continue with second
point calibration.
2.3
Rinse the electrode with distilled water. Place the electrode into the pH4.01 or
10.01 (pH4.01 or 9.18) buffer solution. Stir the electrode gently.
2.4
Press the
Enter
key, the meter automatically recognizes the current calibration
solution and begins the calibration.
2.5
Wait for the reading to stabilize,
the display automatically shows the electrode
slope
(e.g. 99%) and END. Second point calibration is completed.
3 points calibration
3.1
Make sure that you have selected 3 points calibration in the setup menu.
3.2
Repeat the steps 1.2 to 1.4 above. When the first calibration point is completed,
the display will show pH4.01/CAL2. The meter prompts you to continue with
second point calibration.
