BUCHI Extraction System B-811 LSV - Manual (Page 30)

5 Putting into operation
30 B-811 Operation Manual, Version G
5 .3 Mounting the glass parts
6
7
8
9
10
11
1
2
3
4
5
6
7
Fig. 5.1: Mounting the glass parts
Place the PTFE seal 1. f into the holder ring
g so that it clicks into place on both sides.
Screw both (upper and lower) holder rings
2.
g onto the extraction chamber i (¼ turn
with slight pressure) until they click into
place. Make sure that the Büchi logo is
aligned to the vapor duct.
Screw the magnetic valve
3. k onto the
extraction chamber i.
Insert plug of magnetic valve unit and open
4.
the adjustment for the optical sensor at the
instrument. Place the assembled extraction
chamber in the instrument. Start with the
rightmost unit and continue to the left.
Fasten the optical sensor to the side arm
5.
tube h.
Screw the inert gas hose
6. j or screw cap
onto the extraction chamber.
Place the PTFE insert
7. d into the condenser
c.
Place the condenser
8. c into the guide ring
of the instrument.
To keep the tube holder e from falling off
the condensation tube a wrap threads of
the condensation tube b with PTFE band.
Replace band when necessary.
Insert condensation tube a from top into
condenser c and fix on top.
Screw tube holder e onto condensation
tube a.
Screw the cooling water hose tight
9.
(connections facing towards the back; see
chapter 5.5).
5 .4 Fastening the optical sensor
To guarantee optimal functioning of the optical sensor, the glass part must be attached using the
strap.
You do not have to loosen the strap to adjust the solvent level. The optical sensor can easily be
adjusted up and down.
Make sure that there is enough solvent in the extraction chamber so that the solvent level you have set
will be reached.
NOTE
Some samples absorb a lot of solvent. You may have to add more solvent so that the required
solvent level is reached in the extraction chamber.