Metrohm 2.942.0300, Manual, Page: 41 / 56

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5 Operation and maintenance
942 Extension Module Vario ChS-PP (2.942.0300)
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33
Replacing the filter
Figure 10 Pump tubing connection – Replacing the filter
1
Tubing olive
2
Filter (6.2821.130)
Pack contains 10 pieces.
3 Filter screw
1 Unscrewing the filter screw
￭
Unscrew the filter screw (10- 3 ) from the tubing olive (10- 1 ) using
the two adjustable wrenches.
2 Replacing the filter
￭
Remove the old filter (10-
2
) using tweezers.
￭
Use tweezers to place the new filter (10-
2
) on the filter screw
(10-
3
) so that it is
flat
and press it firmly into place with the rear
of the tweezers.
3 Installing the filter screw
￭
Screw the filter screw (10- 3 ) back into the tubing olive (10- 1 ) and
start by tightening it by hand. Finish tightening it using the two
adjustable wrenches.
5.3 Metrohm Suppressor Module (MSM)
5.3.1 Notes for operating the Metrohm Suppressor Module (MSM)
NOTICE
The suppressor units must never be regenerated in the same flow direc-
tion the eluent is pumped. Therefore, always mount the inlet and outlet
capillaries according to the diagram outlined in
Chapter Connecting the
Metrohm Suppressor Module (MSM), page 23 .
The Metrohm Suppressor Module (MSM) consists of three suppressor
units, which, in rotation, are (1.) used for suppression, (2.) regenerated