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SBS-3510 User’s Manual
12.2.1 Cleaning at the End of a Measurement Series
At the end of your measurement series, clean your SBS-3510 thoroughly
before you store it. You need not dry the measuring cell (provided that the
cleaning liquid will not freeze in the measuring cell). You can leave deionized
water in the measuring cell when you store the instrument for a day.
12.2.2 Cleaning Visible Residues in the Measuring Cell
Some samples like wort or grape juice may cause residues in the measuring
cell after longer measurement periods. In this case, use an enzymatic lab
cleaner to remove the residues from the cell (see recommendations below).
12.2.3 Cleaning Agents – Recommendations
NOTICE
If you want to dry the measuring cell with compressed air, do not apply an
overpressure of more than 1 bar (14.5 psi).
WARNING
The mixture of concentrated sulfuric acid with water will cause a very
strong exothermic reaction which may destroy the measuring cell and/or
cause serious injuries.
• Never flush out concentrated sulfuric acid with water.
• Ensure that samples of very different concentrations do not come
into contact with each other. Therefore, remove 98% H
2
SO
4
only with
70% H
2
SO
4
, and remove 70% H
2
SO
4
with 40% H
2
SO
4
. Then water
may be used to rinse the measuring cell.
• Always use separate waste containers for sulfuric acid waste and
ethanol (or other solvent) waste. Label the waste containers properly to
avoid mix-ups.
• Never flush sulfuric acid waste and ethanol (or other solvent)
waste down the sink.
• Always dispose of the waste according to regional laws and regulations.
• Place the waste containers behind a safety shield and in a catch basin.