Metrohm 930 Compact IC Flex ChS/Deg Manual page 86

5.11 Metrohm Suppressor Module (MSM)
￭￭￭￭￭￭￭￭
78
Irremediable blockage of the MSM (solutions can no longer be pum-
￭
ped through the MSM).
Irremediable jamming of the MSM (MSM can no longer be switched
￭
over).
Cleaning the Metrohm Suppressor Module (MSM)
1 Disconnecting the Metrohm Suppressor Module (MSM) from
the IC system
Switch off the instrument.
￭
Disconnect all capillaries of the MSM from the IC system.
￭
2 Dismantling the Metrohm Suppressor Module (MSM)
Unscrew the union nut (21-1) from the housing (21-4).
￭
Pull the connecting piece (21-2) out of the housing together with
￭
the rotor (21-3).
If the rotor gets stuck in the housing, you can push it out as fol-
lows:
Put a pointed object into the slot in the housing and use it to
push out the rotor.
Loosen the connecting piece from the rotor with a turning move-
￭
ment.
3 Rinsing the capillaries
Connect each of the six PTFE capillaries connected to the connect-
￭
ing piece (21-2) in sequential order to the high-pressure pump
and pump ultrapure water through them.
Check whether water comes out at the connecting piece.
￭
If one of the capillaries remains blocked, the connecting piece (see
"Replacing parts of the Metrohm Suppressor Module (MSM)", page
80) must be replaced (order number 6.2835.010).
4 Cleaning the rotor
Clean the sealing surface of the rotor (21-3) with ethanol using a
￭
lint-free cloth.
5 Inserting the rotor
CAUTION
The rotor may be destroyed during start-up if it is not inserted cor-
rectly.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
930 Compact IC Flex ChS/Deg (2.930.1260)