Metrohm 1.873.0014, Manual

Page: 23 / 192

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
3 Installation
873 Biodiesel Rancimat
￭￭￭￭￭￭￭￭ 15
15 Connector plug 16 Measuring vessel cover (6.0913.130)
Contains integrated conductivity measuring
cell.
17 PTFE tube (6.1819.080)
For supplying the air to the measuring solu-
tion.
18 Electrode
19 Protection ring 20 Glass measuring vessel (6.1428.030)
Proceed as follows to mount the measuring and reaction vessel:
1 Mount the measuring vessel cover
￭
Insert the PTFE tube (5-
17
) from above into the opening In (5-
13
)
of the measuring vessel cover.
￭
Screw the tubing adapter M8 / olive (5-
11
) into the opening In of
the measuring vessel cover.
￭
Place the measuring vessel cover
(5-
16
)
on the measuring vessel
(5-
20
) .
2 Mount the reaction vessel cover
￭
Insert the air tube (5-
5
) from below into the connection (5-
7
) of the
reaction vessel cover.
￭
Place the O-ring (5-
6
) over the upper end of the air tube.
￭
Screw the thread adapter M8 / M6 (5-
3
) gently into the connection
(5-
7
) and, at the same time, press the air tube against the
thread adapter M8 / M6.
￭
Now fix the air tube onto the reaction vessel cover by firmly pulling
the thread adapter M8 / M6.
￭
If determinations are carried out with highly foaming samples,
clamp the foam barrier
(5-
9
) onto the air tube.
￭
Place the reaction vessel cover on the reaction vessel.
Warning
The foam barrier can melt if it projects too deeply into the heating block.
Ensure that the foam barrier (5-
9
) is at least 7 cm above the base of the
reaction vessel (5-
10
) .