Metrohm 930 Compact IC Flex Oven/ChS/PP/Deg - Manual (Page 89)

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5 Operation and maintenance
930 Compact IC Flex Oven/ChS/PP/Deg (2.930.2360)
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5.10 Servicing the pulsation absorber
CAUTION
The pulsation absorber is maintenance-free and must not be opened.
5.11 Injection valve
Maintenance on the injection valve is best performed by specialist person-
nel from Metrohm during annual service.
5.12 Suppressor
5.12.1 Notes for operating the suppressor
NOTE
The suppressor units must never be regenerated in the same flow direc-
tion the eluent is pumped. Therefore, always mount the input and out-
put capillaries according to the diagram outlined in Chapter Connecting
the suppressor, page 32.
The suppressor consists of three suppressor units, which are used in rota-
tion for suppression, regenerated with regeneration solution, and rinsed
with ultrapure water. In order to record every new chromatogram under
comparable conditions, you should normally work with a freshly regener-
ated suppressor.
CAUTION
The suppressor must never be switched over if liquid is not flowing
through it, since otherwise it may become jammed. If the suppressor is
in a dry state, it must be rinsed for at least five minutes before it may be
switched over.