Metrohm 820 IC Separation Center - Manual (Page 53)

2.9 Separating columns and suppressor module
819 IC Detector / 820 IC Separation Center
45
5 Connect suppressor module to detector block
(Suppressor connection 1)
• Cut outlet capillary 69 (marked with “Detector”) of suppressor
module 70 to the required length. Use the 6.2126.080 Capil-
lary cutter available as an option.
• Screw outlet capillary 69 on to coupling 71 by using a
6.2744.010 Pressure screw.
• Screw inlet capillary 56 of detector block 57 on to the other
end of coupling 71.
6 Prepare 833 IC Liquid Handling Pump Unit
• Mount the two lengths of 6.1826.050 Pump tubing (white-
yellow stopper) with aspirating tube 16 and filter unit PEEK
22 6.2821.120 as described in Section 3.2, Fig. 7 of the 833
Instructions for Use.
For mounting of the filter unit PEEK see also section 2.7.3.
Pump tubing is a consumable whose working life depends on the
contact pressure. This is why when the pump is switched off for a long
time, the tubing cassette should be lifted by fully loosening spring
lever on the right-hand side (in this way the correctly set optimal con-
tact pressure is retained).
7 Suppressor connection 2: H
2
SO
4
• Pull inlet capillary 65 (marked with "H
2
SO
4
") by hand as far as
required through one of the feedthroughs 14 to the outside
(see Fig. 23 und Fig. 24).
• Screw the filter unit PEEK on to PEEK coupling 21
(6.2744.160) as described in Section 3.2 of 833 Instructions
for Use at the outlet end of the first piece of pump tubing 19.
• Fasten inlet capillary 65 (23) to the outlet of filter unit PEEK
(6.2821.120) 47 by using a compression fitting screw (see
Fig. 7 of 833 Instructions for Use).
• At the inlet end of the first piece of tubing 19 fasten a suitably
long piece of PTFE tubing 16 (6.1803.020) to coupling 18
(6.2744.034) by using a compression fitting (6.2744.010) (see
Fig. 7 of 833 Instructions for Use).
• Immerse the other end of the aspiration tubing in a container
with regeneration solution (normally 50 mmol/L H
2
SO
4
) and fix
it in position.
• Pull outlet capillary 66 of the suppressor module (marked
with "Waste") through opening 18 on the rear panel, lead it
into a sufficiently large waste bottle and fix it in position.