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9 Upkeep and Cleaning
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ture of the measuring cell (ethanol at 20 °C:
approx. 5 min, acetone at 20 °C: approx. 3 min).
9. Tap
STOP
to stop the air pump.
TIP:
You can also set the air pump to turn off auto-
matically:
• Tap
to open the pump settings.
• Switch
Turn off when density is stable
or
Turn Off
after Timeout
on/off according to your require-
ments.
• Tap
Save
.
10. Disconnect the air pump hose from the syringe
holder (or from the sample inlet).
9.2 Cleaning the Instrument Housing
and the Touchscreen
To clean the instrument housing or the touchscreen,
use a soft tissue, which can be wetted with warm
water, if necessary with a mild cleaning agent added
(pH < 10).
9.3 Storing the Instrument
Clean and dry the measuring cell before you store
the instrument for more than one day. Otherwise
algae may grow on the glass surface, which are
difficult to remove.
If you store the instrument for less than one day, the
measuring cell can be filled with ultra-pure water.
WARNING
Before using any cleaning agents for the instru-
ment’s housing and touchscreen:
• Strictly follow all safety instructions concerning
the use of chemicals and the use of flammable
chemicals, see section 1.
• Make sure that all parts of the housing are
resistant, see appendix A.3. In case of
uncertainties contact Anton Paar GmbH.
• Decontaminate and remove aggressive sample
residues on the instrument.
NOTICE
Corrosion due to unsuited means of cleaning
Using substances for cleaning that are not suit-
able causes corrosion of the instrument housing.
Never use:
• highly nonpolar solvents (e.g. toluene, hexane,
solvent naphtha),
• strong acids or bases (e.g. nitric acid, sulfuric
acid, hydrochloric acid, caustic soda),
• strong mechanical action (steel brush).
WARNING
Possible shock current over wet skin
In case of moist cleaning unplug the power supply
from the instrument.