IKA RV 10 control Mode D'emploi page 64

Setting the lower end stop
Caution! Depending on the size of the piston, the setting angle of the
rotation drive and the position of the heating bath and lift, the eva-
porator piston can be in contact with the bottom of the heating bath.
Caution - glass may break!
Limit the lower lift position with the variable end stop.
The lift can be moved to any desired position in manual mode using the
" " and " " keys. There is no automatic cut-off if a collision occurs.
 Press the " " key until the lift reaches the desired position.
Note: The evaporator piston should be 2/3 immersed in the heating
bath.
 To adjust the stop element (Q), press the centre button (R) on the front
of the lift (Fig. 18).
 Move the stop (Q) to the desired position (Fig. 19)
 Press the " " key until the lift has reached the upper end stop.
Note: The path is limited from 0 – 6 cm.
Check that the limit stop is functioning properly:
 Lower the lift by holding down the " " key.
 The drive stops automatically when the preset desired lower end posi-
tion has been reached.
 Move the drive back to the upper position.
To activate the safety lift following a long period of inactivity, use the
motor to move the lift to the top or bottom position several times prior
to starting distillation. (See the section entitled Safety Instructions - Sa-
fety Lift)!
Filling the evaporator piston
Prior to filling the evaporator piston, a vacuum controller is used to regu-
late the glass apparatus to the target pressure.
 Now fill the evaporator piston using the backfeed line, see fig. 30.
 Due to the vacuum present, the solvent is suctioned into the evapora-
tor piston. This enables you to keep solvent loss due to suctioning to
a minimum.
 You can also fill the evaporator piston manually prior to creating the
vacuum. The evaporator piston should not be filled more than half its
volume.
Note: Caution! The maximum allowed load (evaporator piston and
contents) is 3 kg.
R
Q
Fig. 28
Setting up the heating bath
Refer also to the operating instructions for the heating bath IKA
HB 10!
 Move the lift to the bottom position and check the position of the
heating bath in relation to the evaporator piston. When using larger
evaporator pistons (2 or 3 litres) or depending on the angle of the
rotation drive, you can move the heating bath 50 mm to the right.
 Fill the heating bath with the tempering medium until the evaporator
piston is surrounded by tempering medium to 2/3 of its volume.
 Switch on the rotation drive and slowly increase the speed
Fig. 29
Note: Avoid creating waves.
 Switch on the heating bath using the main on/off switch.
Note: Avoid stress on the glass due to different evaporator piston and
heating bath temperatures when lowering the evaporator piston into
the heating bath!
Note: If non-original accessories are used that are not supplied by IKA
then it is possible that the 50 mm travel range provided by the heating
bath will not be sufficient. This applies in particular when using 3 L eva-
porator flasks with foam brake.
Use the IKA
travel range by 150 mm.
® RV 10.3000 mounting plate to extend the heating bath
Fig. 30
®
® ,
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