Operation - Stuart RE300 Assembly And Operating Instructions Manual

2. Place the stand on a level surface. You will require easy access to
a water supply, drain, electric power and vacuum line to use your
rotary evaporator.
3. Pass the plain end of the vapour tube (8) through the right side
of the motor assembly and push into position until it locates
firmly behind the spring clip. The conical joint should be to the
right of the motor when viewed from the front.
4. Place the main vacuum seal (11) and sub-seal (12) onto the plain
end of the vapour tube (left) and slide them down until they
locate in the bearing housing. It is important that these
elements are fitted in the correct order and that the spring
loaded side of the main seal faces the bearing housing (see
fig.2).
5. Place the retaining clip (13) on the jointed side of the vapour
tube (right) and slide until it clips in the plastic screw bush (fig 2).
6. Place the grey retaining cap (9) over the butt joint of the
condenser (1) with the screwthread facing outwards and retain in
position with the circular spring (10) (see figure 3).
7. Place the condenser over the vapour tube so that it butts up to
the vacuum seal. Ensure the spherical joint faces downwards.
Secure by screwing the retaining cap onto the bearing housing.
If using a RE300 diagonal coil condenser, check that the vapour
tube is central and will not foul the condenser cooling coil.
8. The condenser may now be set to the required angle:
RE300 and RE300P
RE301, RE301P and RE302, RE302P
9. Support the condenser while loosening the glass angle control.
10. Position condenser and tighten the control.
11. Hold the receiving flask (5) in position and secure with the
spherical joint clip (7).
12. Place the rotating flask (4) onto the end of the vapour tube and
secure using the conical joint clip (2).
13. Remove the grey plastic screwcap from the narrow end of the
condenser and assemble it to the feed/vacuum release adapter (3)
(see fig. 4).
14. Pass the PTFE tube through the condenser and vapour tube so
that the end is inside the rotating flask. Note that for the RE301
and RE302, the PTFE tube may have to be reduced in length to
fit into the Florentine flask (see fig. 4).
15. Secure by tightening the screw cap.
16. RE302 and RE302P only: Assemble the drain stopcock
(RE200/CFD) to the condenser using the grey plastic cap located
on the lower side arm.
17. To connect the condenser to the water supply, drain and vacuum
line, flexible hose of 9mm I.D. is required. Ensure you identify
every connection correctly before starting. Note tubing suitable
for use under vacuum must be used for the vacuum connection.
RE300, RE300P First remove the plastic connectors from the
condenser and fit into the hose. Secure with a suitable clip, e.g.
Jubilee. The connectors and hose may now be fitted to the inlet
and outlet water connections on the condenser (bottom two
connections linked to the coil). Proceed in the same way for the
vacuum connection (top connection).
RE301, RE301P First remove the plastic connectors from the
condenser and fit into the hose. Secure with a suitable clip, e.g.
Jubilee. The connectors and hose may now be fitted to the inlet
and outlet water connections on the condenser (bottom two
connections linked to the coil). Proceed in the same way for the
vacuum connection (top connection).
4
Your rotary evaporator is now ready to be used.

Operation

Batch Operation
a) Remove the rotating flask (4) from the vapour tube (8) and fill
with the liquid to be evaporated. Ensure that the flask is never
more than half full. Secure the flask onto the conical joint using
the clip (2)
b) Examine the feed/release adapter (3) and ensure that both the
stopcock and vacuum release screwcap are closed (see fig. 4).
Diagonal position
Vertical position
c) Ensure that water is flowing through the condenser at approx.
d) Ensure the speed control is set to 0.
e) Switch on the electricity supply.
f)
g) Place a suitable water bath directly under the rotating flask.
h) Lower the glassware until the rotating flask is partially immersed
i)
j)
RE302, RE302P First remove the plastic connector at the back
of the condenser and fit into the hose. Secure with a suitable
clip, e.g. Jubilee. The connector and hose may now be fitted to
the vacuum line.
Note: A plastic cover is provided to reduce evaporation of cooling
agent.
Continuous feed
stopcock
Vacuum release
screwcap
Continuous feed
inlet
Figure 4
60l/hr (RE300 and RE301) or that the cold trap is filled with ice
or dry ice (RE302).
Raise the glassware assembly to its highest position by turning
the handle anticlockwise. Note that the mechanism is spring
loaded. Once at the right height, turn the handle clockwise to
secure the position.
Note: Further height adjustment can be made by unscrewing the
additional height adjustment knob at the back of the stand (see
fig 1).
N.B. A water bath designed for use with the RE300 is
available from Bibby Scientific, code RE300B. Please
contact the sales office for details.
in the water.
N.B. Ensure that the glassware does not touch the bath
and that no water overflows as the flask is immersed.
Switch the on/off switch to the on position. The green switch will
illuminate.
Set the speed control to the desired speed ensuring that rotation
is not so fast that water is splashed out of the bath.