NAVI D-25 Instruction Manual page 44

● Measuring pH
D-52/53/54/55
1.
Wash the tip of electrode well with pure (de-
ionized) water, and then wipe with filter paper or
tissue paper.
2.
Open the internal solution filler port.
Leave the port open while measurement is taking
place.
3.
Immerse the electrode all the way in the sample.
Immerse the pH electrode in the sample at least
three centimeters.
2 Taking Measurements
2.5 Measuring pH
Open
Close
3 cm or
more
33