2 | Safety
BÜCHI Labortechnik AG
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Operation Manual Rotavapor® R-300
2.4.2
High internal pressure
The evaporation of fluids can produce high pressures inside the flask or the
condenser. If that pressure becomes too great, the glass components could explode.
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Make sure that the internal pressure inside the glass components is never greater
than atmospheric pressure.
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When distilling without a vacuum, set the vacuum pump to atmospheric pressure
so that excess pressure is automatically dissipated.
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If a vacuum pump is not used, leave the vacuum connection open.
2.4.3
Hot surfaces and liquids
The heating bath, evaporating flask and parts of the condenser can become very hot.
If touched they can cause skin burns.
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Do not touch hot surfaces or liquids or else wear suitable protective gloves.
2.4.4
Rotating parts
The evaporating flask and the vapor duct are rotated by the rotary drive unit. Hair,
clothing or jewelry can become caught up if allowed to come into contact with the
rotating parts.
At high speeds, the heating fluid may be sprayed out by the rotation of the
evaporating flask.
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Wear work overalls or protective clothing.
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Do not wear loose or baggy items of clothing such as scarves or neck-ties.
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Tie up long hair.
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Do not wear jewelry such as necklaces or bracelets.
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At high speeds and/or high temperatures, use the optional safety guard or a simi-
lar protective arrangement.
2.4.5
Faults during operation
If a device is damaged, sharp edges, moving parts or exposed electrical wires can
cause injuries.
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Regularly check device for visible damage.
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If faults occur, switch off the device immediately, unplug the power cord and in-
form the operator.
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Do not continue to use devices that are damaged.
2.4.6
Glass breakage
Broken glass can cause severe cuts.
Damaged glass components may implode if subjected to a vacuum.
Minor damage to the ground joints impairs the sealing effect and may therefore dimin-
ish performance.
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Handle the flask and other glass components carefully and do not drop them.
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Always visually inspect glass components for damage every time they are to be
used.
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Do not continue to use glass components that are damaged.
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Always wear protective gloves when disposing of broken glass.
2.5
Personal protective equipment
Depending on the application, hazards due to heat and/or corrosive chemicals may
arise.
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Always wear appropriate personal protective equipment such as safety goggles,
protective clothing and gloves.
