Metrohm 753 Suppressor Module - Manual (Page 16)

2.3 Connection to the 690 Ion Chromatograph
753 Suppressor Module / 8.753.1003 Instructions for Use
13
30 30 32 32 33 33 34 34 44 55 34 34 32 32 25/28 25/28 10 10 31 31 31 31
Fig. 7: Installing pump tubings
44 Tubing cartridge 30 30 PTFE tubing (6.1803.020)
55 Contact pressure lever 31 31 PEEK compression fitting
(6.2744.010)
10 10 Snap-action lever 32 32 Coupling (6.2744.030)
25 25 Suppressor inlet capillary
for H
2
SO
4
33 33 Pump tubing (6.1826.050)
28 28 Suppressor inlet capillary
for H
2
O
34 34 Stopper (white-yellow)
9 Suppressor connection 3: H
2
O
• Pull the inlet capillary 28 28 marked with “H
2
O“ at suppressor
connection 22 22 (see Fig. 6) through one of the rear panel
openings 29 29 of the 690 Ion Chromatograph or through the
door gap in the right-hand lower corner of the interior door
13 13.
• Mount a PEEK compression fitting 31 31 (6.2744.010) on the
end of inlet capillary 28 28 and screw this on to coupling 32 32
(6.2744.030) (see Fig. 7).
• Push coupling 32 32 on to the outlet end of the second pump
tubing 33 33 (see Fig. 7).
• Mount suction tubing: cut a piece of PTFE Tubing 30 30
(6.1803.020) to the desired length.
• Mount a PEEK compression fitting 31 31 (6.2744.010) on one
end of PTFE tubing 30 30 and screw this on to coupling 32 32 (see
Fig. 7).
• Push coupling 32 32 on to the inlet end of the second pump
tubing 33 33 (see Fig. 7).
• Immerse the other end of the suction tubing in a vessel
containing rinsing solution (normally dist. H
2
O) and fix in
place.