Metrohm 850 Professional IC Anion MCS Prep 3 - Manual (Page 103)

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4 Operation and maintenance
850 Professional IC –Anion – MCS – Prep 3
￭￭￭￭￭￭￭￭ 93
3 Connecting the SPM to the IC system
￭ Reconnect the SPM to the IC system. If the capacity problems
remain, the SPM rotor A must be replaced (see Chapter 4.10.3.3,
page 95).
4.10.3.2 Cleaning the SPM
It may be necessary to clean the SPM in the following cases:
￭ Increased backpressure on the connection tubings of the SPM.
￭ Blockage of the SPM which cannot be eliminated (solutions can no lon-
ger be pumped through the SPM).
￭ Jamming of the SPM which cannot be eliminated (SPM can no longer
be switched over).
1 2 3 4
5
Figure 52 SPM – Components
1 Union nut 2 SPM connecting piece (6.2835.010)
3 SPM rotor A (6.2835.000)
Cation exchanger. 4 SPM housing
5 Slot in the SPM housing
SPM cleaning
Clean the SPM as follows:
1 Disconnecting the SPM from the system
￭ Switch off the instrument.
￭ Disconnect capillary connections of the SPM from the system.
2 Dismounting SPM
￭ Unscrew union nut (52-1) from the SPM housing (52-4).