Metrohm 881 Compact IC pro – Anion – MCS - Manual (Page 97)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Operation and maintenance
881 Compact IC pro – Anion – MCS
￭￭￭￭￭￭￭￭ 87
5.12 Metrohm Suppressor Module (MSM)
5.12.1 Protection
To protect the suppressor against foreign particles or bacterial growth, a
pump tubing connection with filter (6.2744.180) (see Figure 26, page 48)
must be mounted between the peristaltic pump (see Figure 24, page 46)
and the inlet capillaries of the suppressor.
5.12.2 Operation Suppressor
Note
The suppressor units must never be regenerated in the same flow direc-
tion in which the eluent is pumped. Therefore, always mount the inlet
and outlet capillaries according to diagram outlined in (see "Connecting
the capillaries of the suppressor", page 53).
The suppressor consists of 3 suppressor units, which are in rotation used
for suppression – regenerated with regeneration solution – rinsed with
ultrapure water. In order to record every new chromatogram under com-
parable conditions, you should normally work with a freshly regenerated
suppressor unit.
Caution
The suppressor must never be switched over in a dry state, as there is a
risk of jamming. If the suppressor is in a dry state, it must be rinsed for
at least 5 minutes before it may be switched over.
Caution
In the case of reduced capacity or high backpressure, the suppressor
must be regenerated (see Chapter 5.12.3.2, page 88), cleaned (see
Chapter 5.12.3.3, page 90) or replaced (see Chapter 5.12.3.4, page
91).