Parkside PPHM 14 A1 Bedienungs- Und Sicherheitshinweise Seite 26

Calibrate the product using the 9.18 pH buffer
solution: Repeat the full procedure of the
"pH calibration: 6.86 pH" section.
NOTES:
For best measuring results: Calibrate before each
measurement.
If the pH buffer solutions have air bubbles: Remove the
air bubbles prior to pH measurement.
26 GB
Otherwise, the measured value may not be accurate.
The pH value slightly changes as the temperature of
the pH buffer solution changes:
°C 4.01 pH
10 4.00
15 4.00
20 4.00
25 4.00
6.86 pH 9.18 pH
6.92 9.33
6.90 9.28
6.88 9.23
6.86 9.18