Metrohm 882 Compact IC plus – Anion - Manual (Page 86)

5.11 Metrohm Suppressor Module (MSM) ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
76 ￭￭￭￭￭￭￭￭ 882 Compact IC plus – Anion
￭ Connect the inlet capillary for the rinsing solution (labeled with
rinsing solution) to the outlet of the high pressure pump with the
aid of a coupling (6.2744.040).
￭ Rinse the first suppression unit with degassed ultra pure water for
about 15 minutes.
￭ In the software, use the Step command to switch to the second
suppressor unit and rinse this for about 15 minutes.
￭ In the software, use the Step command to switch to the third
suppressor unit and rinse this for about 15 minutes.
5 Connect the suppressor to the IC system
￭ Reconnect the capillaries labeled regenerant and rinsing solution
to the IC system.
5.11.3.3 Cleaning the suppressor
In the following cases, it may be necessary to clean the suppressor:
￭ Increased backpressure onto the connection tubings of the suppres-
sor..
￭ Blockage of the suppressor which cannot be eliminated (solutions can
no longer be pumped through the suppressor).
￭ Jamming of the suppressor which cannot be eliminated (suppressor
can no longer be switched over).
Cleaning the suppressor
Clean the suppressor as follows:
1 Disconnecting the suppressor from the IC system
￭ Switch off the instrument.
￭ Disconnect all capillaries of the suppressor from the IC system.
2 Dismantling the suppressor
￭ Unscrew union nut (36-1) from the housing (36-4).
￭ 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.