Metrohm 882 Compact IC plus Manual page 88

5.11 Metrohm Suppressor Module (MSM)
5.11.3.4 Replacing parts of the suppressor
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In the following cases, it might be necessary to replace parts of the sup-
pressor:
Loss of suppression capacity which cannot be eliminated (reduced
￭
phosphate sensitivity and/or significant rise in the baseline).
Blockage of the suppressor which cannot be eliminated (solutions can
￭
no longer be pumped through the suppressor).
Both the rotor and the connecting piece can be replaced.
Replacing parts of the suppressor
Replace the parts of the suppressor as follows:
1 Disconnecting the suppressor from the IC system
Switch off the instrument.
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Disconnect all capillaries of the suppressor from the IC system.
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2 Dismantling the suppressor
Unscrew union nut (36-1) from the housing (36-4).
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Pull the connecting piece (36-2) and the rotor (36-3) 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, insert it into the slot
of the housing (36-5) and pull out the rotor in this way.
Detach the connecting piece from the rotor.
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3 Cleaning the new rotor
Clean the surface of the new rotor (36-3) 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 (36-3) into the housing (36-4) in such a way
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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 (36-5).
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882 Compact IC plus – Anion