Metrohm 850 Professional IC MSM-HC MCS Prep 3 - Manual (Page 121)

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5 Operation and maintenance
850 Professional IC Anion – MSM-HC – MCS – Prep 3
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3 Cleaning the new MSM-HC rotor A
￭ Clean the sealing surface of the new MSM-rotor A (55-3) with
ethanol using a lint-free cloth.
4 Inserting the new MSM-HC rotor A
Caution
An incorrectly inserted MSM rotor A (55-3) can be destroyed
during start-up.
￭ Insert the new MSM-HC rotor A (55-3) in the MSM-HC housing
(55-4) in such a way that the tubing connections on the rear of
MSM-HC rotor A fit into the corresponding recesses inside the
MSM-HC housing and one of the three holes of MSM-HC rotor A
is visible from below in the slot (55-5) of the MSM-HC housing.
￭ If the MSM-HC rotor A (55-3) is correctly inserted, its sealing sur-
face will be approx. 4 mm within the MSM-HC housing (55-4). If
this is not the case, the MSM-HC rotor A must be moved into the
right position from below using a sharp object (e.g. screwdriver).
5 Cleaning the MSM-HC connecting piece
￭ Clean the sealing surface of the MSM-HC connecting piece (55-2)
with ethanol using a lint-free cloth.
6 Inserting the new MSM-HC connecting piece
￭ Insert the MSM-HC conencting piece (55-2) into the MSM-HC
housing (55-4) 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 MSM-HC housing (55-4).
￭ Reattach the union nut (55-1) onto the coupling and tighten.
7 Connecting and conditioning the MSM-HC
￭ Reconnect the MSM-HC to the IC system.
￭ Before switching the MSM-HC over for the first time, rinse the
three suppressor units with solution for 5 minutes.