Metrohm 753 Suppressor Module User Manual
Page 21
2 Installation
753 Suppressor Module / 8.753.1003 Instructions for Use
18
11 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 41
41 or 43
43 of the 733 IC Separation Center.
•
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.
•
Pull outlet capillary 27
27 marked with “Waste“ at suppressor
connection 22
22 (see Fig. 6) through one of the rear panel
openings 41
41 or 43
43 of the IC Separation Center 733.
•
Lead outlet capillary 27
27 to a sufficiently large waste container
and fix in place.
12 Startup of 753 Suppressor Module
•
Set switch
•
Switch on 753 Suppressor Module with mains switch 13
13 and
set switch
•
Adjust the contact pressure for both tubing cartridges: press
contact pressure lever 55 upwards until the solutions just start
to be drawn in. Then press the contact pressure lever up-
wards until it clicks once more to obtain optimal contact pres-
sure.
•
Before switching the suppressor to the next position for the
first time rinse all three suppressor units with solution for
5 min.
•
Check all tubing from the storage vessels through the tubing
cartridges and the suppressor up to the waste containers for
leakage of liquids. If liquid escapes anywhere the corre-
sponding compression fitting must be tightened further or
changed.
Pump tubings are consumable material with a lifetime which depends
on the contact pressure. This is why the tubing cartridges should be
raised completely by loosening snap-action lever 10
10 on the right-hand
side if the pump is to remain switched off for a considerable length of
time (the set contact pressure remains unchanged).