Metrohm 872 Extension Module Suppression – MCS - Manual (Page 48)

5.4 Suppressor/SPM
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872 Extension Module Suppression – MCS
￭ Pull the connecting piece (13-2) and the rotor (13-3) out of the
housing.
The connecting piece and the rotor normally stick to one another
– if this is not the case: Take a sharp object, inserti it into the slot
of the housing (13-5) and pull out the rotor in this way.
￭ Detach the connecting piece from the rotor.
3 Cleaning the new rotor
￭ Clean the surface of the rotor (13-3) with ethanol using a lint-free
cloth.
4 Inserting the new rotor
Caution
An incorrectly inserted rotor can be destroyed during start-up.
￭ Insert the new rotor (13-3) into the housing (13-4) in such a way
that the tubing connections on the rear of rotor fit into the corre-
sponding recesses inside the housing and one of the three holes
of the rotor is visible from below in the slot of the housing (13-5).
￭ If the rotor is correctly inserted, its sealing surface will be approx.
4 mm within the housing. If this is not the case, the rotor must be
moved into the right position from below using a sharp object
(e.g. screwdriver).
5 Cleaning the new connecting piece
￭ Clean the surface of the rotor (13-2) with ethanol using a lint-free
cloth.
6 Inserting the new connecting piece
￭ Insert the connecting piece (13-2) into the housing (13-4) in such
a way that the connector 1 is on top and the three pins of the
connecting piece fit into the corresponding recesses on the hous-
ing.
￭ Reattach the union nut (13-1) onto the coupling and tighten by
hand.
7 Connecting and conditioning the suppressor
￭ Reconnect all capillaries of the suppressor to the IC system.
￭ Before switching the suppressor over for the first time, rinse the
three suppressor units with solution for 5 minutes.