Buchi Rotavapor R II, Operation Manual

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6 Operation
33
R II Operation Manual, Version E
6 Operation
This chapter explains the operating elements and possible operating modes. It gives instructions on
how to operate the instrument properly and safely.
WARNING
Risk of injury.
• Never operate the instrument when glassware is damaged.
6 .1 Setting the heating bath temperature
ATTENTION
As soon as the power plug is connected and the mains switch is turned on, the bath starts heating if
the actual temperature is below the set temperature. For this reason, make sure that there is always
heating medium in the bath to prevent instrument damage.
WARNING
The heating bath can reach temperatures up to 95 °C. To avoid burns, consider the following:
• Never remove a rotating flask from the bath because splashing oil can result in burns.
• Make sure that no liquid can overflow from the bath when the evaporating flask is submerged.
• Install the protective shield (optional accessory) only to a cold heating bath.
6 .2 Immersion angle of the evaporating flask into the heating bath
The immersion angle into the heating bath is, by
default, set to 30°.
If you need to operate with another angle, e.g.
when operating with a small flask, the angle can
be changed as follows:
• Turn off the instrument.
• Hold the glass assembly
a
with the one
hand and loosen the anchoring
c
with the
other hand by pulling the knob.
• Set the condenser in the desired position by
tilting the drive unit
b
accordingly and let it
catch.
• Release the knob.
Fig. 6.1: Immersion angle of the evaporating flask into the heating bath
ATTENTION
Risk of instrument damage.
• Do not change the immersion angle while the instrument is operating.
• When the anchoring is loosened the glass assembly can tilt to the left, so that glass breakage can
occur. Always support the glass assembly with one hand when you loosen the anchoring.