IKA RV 8 Mode D'emploi page 15

• RV 10.5 Vertical-condenser with manifold and cut-off valve
for reflux distillation
Also available with coating (RV 10.50)
• RV 10.6 Vertical-intensive condenser with manifold and
cut-off valve for reflux distillation
This vertical-intensive action condenser features a double jacket
design for particularly efficient reflux distillation.
Also available with coating (RV 10.60)
Hose system
• Connect the water hoses (H O) to the condenser according to
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the counter-flow principle. (Fig. 20)
• Install the vacuum connections to the condenser, Woulff bottle,
vacuum controller with valve and vacuum pump.
• Always connect the vacuum hose (vac) to the condenser at the
highest point to minimize solvent losses during suctioning.
• Use standard laboratory vacuum hoses with an inside diameter
of 8 mm and a wall thickness of 5 mm (see accessories).
Fig. 20
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Heating bath
Refer to the chapter entitled "Operation"
CAUTION
in the operating instructions of heating
bath!
• Assemble the foot of the heating bath
For operation of the heating bath in combination with the RV
8, the foot plate supplied must be fitted to the heating bath.
Caution: It is not permitted to use heating bath fitted with
a foot plate in combination with any other type of rotary
evaporator.
Fig. 21
• Place the heating bath on the stand of the rotation drive and
push it into the left position. (Fig. 22)
Fig. 22
Commissioning
The unit is ready for service when the mains plug has been
plugged in.
5
Fig.5
Function keys (Fig.3)
1 2 3
Fig.3
• "Power" key (1)
When the power switch (5) is switched on, the device will be in
"activated" mode.
Touch the "Power" key (1) for about 1 second, the status of the
device will be changed from "activated" mode to "stand-by"
mode.
Touch the "Power" key again shortly, the status of the device
will be changed back to "activated" mode immediately.
• Display window/speed (2)
Display (2) shows "8.8.8."
then Softwareversion "X.X".
Display shows "set value".
Note: The device is not deenergized until the mains power
supply has been interrupted, for instance by unplugging the
power cable.
• Rotating knob (3)
To start the rotation, press the rotary knob.
The indicator flashes until the set speed in rpm (revolution per
minute) is reached.
By turning the rotary knob, the speed can be changed.
To stop the rotation, press the rotary knob again.
The last displayed speed value is stored.
Filling the evaporation flask:
You can fill the evaporation flask manually prior to creating the
vacuum. The evaporation flask should not be filled more than half
its volume.
The maximum allowed load (evaporation
CAUTION
flask and contents) is 3 kg.
Filling medium by vacuum: prior to filling the evaporation flask, a
vacuum controller is used to regulate the glass apparatus to the
target pressure.
- Now fill the evaporation flask using the backfeed line.
- Due to the vacuum present, the solvent is suctioned into the
evaporation flask. This enables you to keep solvent loss due to
suctioning to a minimum.
Setting up the heating bath:
Also refer to the operating instructions for the heating bath!
- Move the lift to the bottom position and check the position
of the heating bath in relation to the evaporation flask. When
using larger evaporation flasks (2 or 3 liters) or depending on
the angle of the rotation drive, you can move the heating bath
to the right.
- Fill the heating bath with the tempering medium until the
evaporation flask is surrounded by tempering medium to 2/3
of its volume.
- Switch on the rotation drive and slowly increase the speed.
Note: Avoid creating waves.
- Switch on the heating bath using the main on/off switch.
Note: Avoid stress on the glass due to different evaporation flask
and heating bath temperatures when lowering the evaporation
flask into the heating bath!
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