IKA RV 10 control FLEX - Manual (Page 52)

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Filling the evaporator piston
Prior to filling the evaporator piston, a vacuum controller is used to re-
gulate 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 eva-
porator piston. This enables you to keep solvent loss due to suc-
tioning 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.
Setting up the heating bath
Refer also to the operating instructions for the HB 10 heating
bath!
 Move the lift to the bottom position and check the position of the
heating bath in relation to the evaporator piston. When using lar-
ger 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 evapo-
rator piston is surrounded by tempering medium to 2/3 of its vo-
lume.
 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 evaporator piston
and heating bath temperatures when lowering the evaporator pi-
ston 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 evaporator flasks with foam brake.
Use the IKA RV 10.3000 mounting plate to extend the heating bath
travel range by 150 mm.
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
evaporator 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. 28).
 Slide the limit stop (Q) to the lowest position (Fig. 29).
 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
position has been reached.
 Move the drive back to the upper position.
Q
Fig.28
R
Fig.29
Fig. 30