horiba 5002S-10C, Instruction Manual

Page: 61 / 79

49
Troubleshooting
Is the temperature of
the solution being
stirred rising? A gradual rise in solution
temperature due to the magnetic
stirrer generating heat may cause
an apparent potential drift.
Reduce the influence of the
temperature changes by covering
the magnetic stirrer with heat
insulation such as polystyrene
foam or using a thermostatic bath.
(
“Measurement hints” (page
29))
―
Is measurement
being performed
while air bubbles are
on the membrane? Shake the electrode to remove
any air bubbles remaining on the
membrane. If air bubbles remain
on the membrane, it may result in
inaccurate measurement.
(
Note on page 34)
Is a solution at a
temperature outside
the measurement
temperature range
being measured? Adjust the temperature of the
solution so that it is within the
measurement temperature range
before measurement. If not, it
may cause measurement errors
as well as damages or
deterioration to the electrode.
(
“Specifications” (page 64))
―
Is the electrode
dirty? Rinse the electrode. A dirty
electrode will cause measurement
errors or a decrease in the
response rate during calibration.
(
“Rinsing the electrode”
(page 12))
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