Cleaning And Care - Bibby Scientific stuart UC150 Instrucciones De Funcionamiento

Cleaning and Care

❖ Before attempting cleaning:
Ensure that the top is cool, disconnect from the
mains electricity supply.
The metal casing should be cleaned using a damp
cloth and a mild detergent solution.
Ceramic top units:
A damp cloth will normally remove most types of
contamination. For more difficult stains a
domestic cream cleanser is recommended.
Cleaning is made easier if spillages are attended
to promptly. In any case, spillages of alkali,
phosphoric acid and hydrofluoric acid MUST be
removed immediately as these chemicals can
attack and damage the glass ceramic. Ensure that
the appropriate safety precautions are observed.
During cleaning and general operation take care
not to scratch the surface of the top plate as this
could result in subsequent thermal breakage.
WARNING: A ceramic top which is
scratched, chipped, chemically etched or
damaged must not be used.
Metal top units:
The metal top plate should be cleaned using a
damp cloth and a mild detergent solution.
Cleaning is made easier if spillages are attended
to promptly. In any case, spillages of acids and
alkalis MUST be removed immediately as these
chemicals can attack and damage the surface of
the coated aluminium alloy. Ensure that the
appropriate safety precautions are observed.
NOTE: Please consult Bibby Scientifics' Technical
department if there is any doubt about the
compatibility of decontaminating or cleaning
agents.
Preparation of media
Take particular care when heating liquids having
a high viscosity. Viscous liquids can act as thermal
insulators and can cause thermal breakage of the
glassware. This is very important with media
solutions as the viscosity will usually increase as
the temperature rises.
❖ Check that the stirring action is sufficient to
agitate the whole of the liquid. Unstirred areas
in the liquid can result in uneven heat transfer
and "hot spots" in the glassware. This can
induce thermal stress and so cause failure.
❖ Check the stirring action regularly to ensure
that it remains adequate as the viscosity of the
solution increases.
❖ Always use the largest magnetic follower
possible and if necessary, use a mechanical
overhead stirrer.
❖ Do not use glass vessels with thick walls, e.g.
Pyrex Heavy Duty Ware or standard beakers
and flasks having capacities of 5 litres or
greater.
❖ NEVER heat glass bottles on a hotplate.
❖ Ensure that the heat is built up slowly to avoid
localised overheating.
❖ Ensure the glassware is completely free from
scratches or other defects.
❖ Place the hotplate in a tray large enough to
contain the liquid in the event of glassware
failure.
❖ Wear the appropriate safety clothing e.g.
gloves, goggles, protective apron etc.
Storage
The unit is designed so that the top plate fits into
the base plate of the next unit for easy and
compact storage when placed on their side (see
figure 4).
Accessories
❖ SR1 Rod is available to support apparatus used
with the instrument. The instrument is
equipped with a fitting on the rear to accept
the support rod catalogue number SR1 (see
figure 2). To fit the rod to your instrument, first
isolate from the mains supply and allow to
cool. Then simply screw the threaded end of
the support rod into the fitting on the rear of
the instrument.
The shape of the base also allows a rectangular
shaped retort rod stand, whose dimensions
must not exceed 19.5mm high and 125mm
wide, to be placed directly underneath the
unit.
SR1 is 12 x 600mm (W x H).
❖ SCT1 Temperature Controller (see page 2 for
details).
❖ For a complete list of accessories please visit
the Bibby Scientific website
www.bibby-scientific.com
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