Metrohm 872 Extension Module Suppression - Manual (Page 32)

3.5 Suppressor drive ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
24 ￭￭￭￭￭￭￭￭ 872 Extension Module Suppression
Connecting the capillaries of the suppressor
In order to protect the Suppressor from foreign particles or bacterial
growth, the following precondition must be fulfilled:
￭ Pump tubing connections with filter (6.2744.180) are installed at the
pump tubing outlets of the peristaltic pump.
Caution
As the PTFE capillaries are very soft, the pressure screws should not be
overtightened.
Squeezed capillary ends can be shortened with the capillary cutter
(6.2621.080).
1 Connecting the eluent inlet capillary
￭ Fasten the end of the inlet capillary labeled with in to the output
of the column with a short PEEK pressure screw (6.2744.070).
2 Connecting the eluent outlet capillary
￭ At the MCS (in case an MCS is being used): Fasten the end
of the outlet capillary labeled with out to the input in of the MCS
with a long PEEK pressure screw (6.2744.090).
or
￭ At the detector: Fasten the end of the outlet capillary labeled
with out to the detector (see manual of the detector).
3 Connecting the rinsing solution inlet capillary
￭ With a short PEEK pressure screw (6.2744.070), fasten the end of
the inlet capillary labeled with rinsing solution to the pump tubing
connection of the pump tubing which carries the rinsing solution.
4 Connecting the rinsing the solution outlet capillary
￭ Guide the other end of the outlet capillary labeled with waste
rins. into a sufficiently large waste container and fasten it there.
5 Connecting the regeneration solution inlet capillary
￭ With a short PEEK pressure screw (6.2744.070), fasten the end of
the inlet capillary labeled with regenerant to the pump tubing
connection of the pump tubing which carries the regeneration
solution.