26
BÜCHI
Fat Determination
B-820/B-821
Figure 17: Gas connection with Autosampler
4.11.10 Connecting the pneumatics to the
Autosampler
Compressed air (approx. 3 bar/40 – 60 psig) is required for the
Autosampler to operate correctly. Use the same synthetic air
which is required for the B-820 unit. For the pneumatic
connection, the T-screw connection
햲
supplied with the Auto-
sampler is installed additionally into the feeding line for
connecting the pneumatics. The 1/8" tubing of polyurethane
supplied with the Autosampler is connected to the T-screw
connection and to the hose nipple located at the rear panel of
the Autosampler.
Before connecting or disconnecting the tubing make sure
that the feeder valves are closed.
This tubing must not be put in front of the oven flap. Affix it to
the top of the B-820.
4.11.11 Installing the solvent reservoir bracket
The bracket holds two solvent bottles of 180 ml each and is
secured on the lower left side of the B-820 unit by means of
an M5*12 screw. For a more secure fix we recommend to
cut the self-adhesive foam rubber part (included in the standard
accessory kit of the Autosampler) into halves and to attach
them to the rear of the bracket (on the left and right side).
4.11.12 Routing and securing the solvent lines and
the waste line
Two solvent lines for rinsing the syringe and one waste line
are already fitted to the Autosampler. To operate the Auto-
sampler, you will only need the line marked with «Sol A», since
only one solvent is used for rinsing the syringe. The bracket
for both solvent reservoirs (included in the standard accessory
kit) takes up the solvent reservoir for rinsing the syringe and
the reservoir for the waste solvent.
4 Putting into operation
햲
B-821
Air
H
2
B-820
