⑴ Calibrate and calibrate the pH meter before pH measurement.
(2) Txhawm rau txheeb xyuas qhov tseeb ntawm pH meter, piv txwv li, tom qab ntsuas pH ntsuas pH nrog pH 6.86 thiab pH 4.00, ntxig pH electrode rau hauv pH 9.18 tov, thiab xyuas seb tus nqi tso tawm ntawm qhov ntsuas puas yog raws li tus nqi pHs ntawm cov qauv kev daws teeb meem.
⑶Check whether the pH meter needs to be reset during the general accuracy measurement. The pH meter may drift or change after being calibrated and used. Therefore, before the test, insert the electrode into a standard buffer solution that is close to the measured solution, and determine whether it needs to be re-calibrated according to the size of the error.
Pls Clink Hauv qab Duab thiab Nyeem ntxiv txog qhov PH Meter PH818?
PH818 Product link:
