Buchi Rotavapor R-200, Руководство по эксплуатации

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BÜCHI Rotavapor R-200/205
4 Putting into operation
Picture 9: Bath B-490
4.3 Heating bath
The bath is placed onto the base plate of the rotary evaporator.
If you need to move the bath, you can pull on the inserted
handle
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in the base plate.
Heating medium
Never operate the heating bath without heating medium!
The following are suitable as heating medium:
• Distilled or deionised water for temperature range between
20 °C to 85 °C
• Heat carrier oil or water soluble polyethylene glycol (PEG)
for a working range up to 250 °C.
Saving energy
In the case of heating baths, there are various ways to save
energy. By using floating balls in the water bath, evaporation
of water is reduced. As a result, heating of the bath is switched
on less often. This measure helps to save energy up to 50 %.
At the same time approximately 70 % less water is used.
(see Chapter 8.11, Miscellaneous).
You should turn on the heating bath around 10 –15 minutes
before starting the distillation, since the bath has a quick warm-
up time. You should also turn off the heating bath after a
distillation.
4.4 Steam tube and sealing system
In contrast to previous generation of Büchi Rotavapor systems,
the new Büchi Rotavapor R-200/205 needs only one sealing
system, which is suitable for distillations under reflux.
All materials, which come into contact with chemicals are
made of glass, PTFE and ETFE.
To prolong the service life of seals, the following should be
respected:
Seals:
• Never grease seals
• Never touch seals with sharp objects
• Clean seals with soap and water or ethanol
• Control seals regularly
Picture 10: Explosion drawing of sealing system
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