Horiba Scientific 6560S-10C Instruction Manual page 64

Check item
Has the internal
solution been
replaced?
Is there a sufficient
amount of internal
solution?
Was the standard
solution made using
pure water?
Is calibration
performed before
each measurement?
Is the electrode
temperature same
as measurement
place?
Is the ion selective
membrane or liquid
junction dirty?
Has the internal
solution
concentration
changed?
52
Solution
Replace the internal solution
before each measurement.
If not, the internal solution
concentration will change and it
will cause measurement errors.
( "How to clean the
electrode" (page 38))
Make sure that the surface of the
solution is just below the internal
solution fill port.
Prepare the standard solution
using pure water. Preparing the
standard solution with water other
than pure water will cause
measurement errors.
( "Standard solutions" (page
18))
Perform calibration before each
measurement.
( "Calibration operation"
(page 19))
Wait until the temperature of the
electrode becomes the
temperature of that place before
using the electrode.
Rinse the electrode. A dirty
electrode will cause measurement
errors or a decrease in the
response rate during calibration.
( "How to clean the
electrode" (page 38))
Replace the internal solution
completely.
( "How to clean the
electrode" (page 38))
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