Chapter 5 Ion Measurement (F-53,55)
5.2 Measurement Using a Calibration Curve
F-52, 53, 54, 55 65
5.2.2 Ion Measuring
1. Wash the tip of the electrode with
deionized water or wipe it with filter
paper or tissue paper.
2. Open the internal solution filler
port
.
During the calibration, the filler port
should be kept open.
The filler port structure depends on the elec-
trode.
3. Immerse the electrode in the
sample, to at least three
centimeters from the electrode tip
.
4. Press the MODE key in any Mea-
surement screen, to proceed to
ION Measurement screen.
The instantaneous measurement for
ION starts.
Open
Close
filler port
Deeper
than 3 cm
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