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6.2 Sample measurement procedure
1. Collect the
sample.
5. Stir gently, then
read the pH value of
the sample. The
display shows the
temperature-
corrected pH value
when the reading is
stable.
Section 7 Verify the calibration
Measure the pH value of a fresh pH buffer solution to make sure the result is accurate. The meter
compares the selected pH buffer value to the measured pH value and accepts or rejects the
measurement. The user can change the pH buffer solution and acceptance criteria for verification in
the probe-specific settings.
Note: Password protection may prevent access to the acceptance criteria.
10 English
2. Rinse the probe
with deionized water.
Dry the probe with a
lint-free cloth.
Rugged probes:
install the shroud.
3. Put the probe in
the sample with the
sensor and
reference junction
fully in the sample.
Do not put the probe
on the bottom or
sides of the beaker.
4. Shake the probe
from side to side to
refresh the reference
junction and remove
air bubbles.
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