14
BÜCHI
Rotavapor
R-220
4 Putting into Operation
4.10 Attaching and Removing Flasks
Bring up the flask
•
With the snap flange coupling open, lay the flask in position.
•
Close the first segment of the snap flange coupling( T h e
hook must latch in).
•
Close the second segment of the snap flange coupling.
•
Insert the closure hook and press down the closure lever.
A clear resistance must be felt when this is done. If not,
readjust the tension on the closure.
Adjusting the tension on the closure:
Open the closure hook up, and turn it.
Turning clockwise
increases pressure
Turning counterclockwise
reduces pressure
If the flange of the evaporating flask is outside of a certain
tolerance, the adjustment with the hook is not possible.
This evaporating flask must not be used!
Fig. 12: Snap flange coupling, with flask laid in place
Fig. 13: Closing the snap flange coupling
Fig. 14: Adjusting the tension on the closure
