4 connection of the suppressor module – Metrohm 790 Personal IC User Manual
Page 50
2.8 Suppressor module
790 Personal IC
41
4 Connect aspirating tubing for H
2
O
• Prepare aspirating tubing 71
71
71
71: Cut a piece of the 6.1803.020
PTFE tubing to the required length (normally ca. 120 cm).
• Insert one end of the aspirating tubing 71
71
71
71 into the rinsing
solution storage bottle and tighten it so that the tubing is
firmly held.
• Insert the free end of aspirating tubing 71
71
71
71 into one of the
openings 5
555 of the 790 Personal IC (see Fig. 2) and pull it suf-
ficiently far into the interior.
• Mount a coupling 73
73
73
73 (6.2744.030) to the inlet end of the front
pump tubing 75
75
75
75.
• Mount a 6.2744.010 Compression fitting at the end of the
aspirating tubing 71
71
71
71 and screw this compression fitting on to
the coupling 73
73
73
73 (see Fig. 15).
2.8.4
Connection of the suppressor module
The three inlets and outlets numbered 1...3 on the suppressor module
39
39
39
39 each have 2 permanently mounted PTFE capillaries, which must be
connected as follows (see Fig. 15 and Fig. 16).
1 Inlet capillary for eluent
• Screw inlet capillary 78
78
78
78 marked with "Eluent" of suppressor
module 39
39
39
39 to outlet end of separating column 63
63
63
63 using a
6.2744.010 Compression fitting.
2 Outlet capillary for eluent
• Screw outlet capillary 79
79
79
79 marked with "Detector" of suppres-
sor module 39
39
39
39 to coupling 26
26
26
26 using a 6.2744.010 Compres-
sion fitting.
• Screw inlet capillary 37
37
37
37 of detector block 38
38
38
38 to other end of
coupling 26
26
26
26.
3 Inlet capillary for H
2
SO
4
• Attach inlet capillary 81
81
81
81 marked with "H
2
SO
4
" of suppressor
module 39
39
39
39 using a 6.2744.010 Compression fitting to the filter
unit PEEK 28
28
28
28 connected to the rear pump tubing 74
74
74
74.
4 Outlet capillary for H
2
SO
4
• Pull outlet capillary 83
83
83
83 marked with "Waste" of the suppressor
module 39
39
39
39 from below through one of the openings 6666 out of
the inner compartment of the 790 Personal IC.
• Lead outlet capillary 83
83
83
83 to a sufficiently large waste container
and fix it in place.