Metrohm 893 Professional Biodiesel Rancimat - Manual (Page 19)

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3 Installation
893 Professional Biodiesel Rancimat
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3.2 Mounting accessories
3.2.1 Mounting the internal air supply
The gas in the 893 Professional Biodiesel Rancimat is normally supplied
using the internal air pump, which aspirates laboratory air. For air
supply and air purification, the following accessories must be mounted on
the rear of the 893 Professional Biodiesel Rancimat:
1 2 3 4 5 6 7 8
9
10
11
12
Figure 4 Mounting accessories for the air supply
1 FEP tubing 130 mm (6.1805.010) 2 "Air out" connector
3 "Air/N
2
in" connector 4 Dust filter (6.2724.010)
5 "From flask" connector 6 FEP tubing 250 mm (6.1805.080)
For supplying the air from the drying flask to
the reaction vessel.
7 "To flask" connector 8 FEP tubing 250 mm (6.1805.080)
For supplying the air from the internal pump
to the drying flask.
9 Drying flask cap (6.1602.145)
Cap for the drying flask. 10 Drying flask (6.1608.050)
Drying flask filled with molecular sieve
(6.2811.000).
11 Bottle holder
For fastening the drying flask.
12 Filter tube (6.1821.040)
Mount the accessories for the air supply as follows:
1 Mounting the dust filter
￭ Insert the dust filter on the connector marked with Filter on the
rear of the 893 Professional Biodiesel Rancimat.
￭ If the laboratory air is heavily contaminated, a tubing for supply-
ing fresh air can be connected to the dust filter.