5.3 Metrohm Suppressor Module (MSM)
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
34
￭￭￭￭￭￭￭￭
942 Extension Module Vario ChS-PP (2.942.0300)
with regeneration solution and (3.) rinsed with ultrapure water or with
suppressed eluent. In order to record each new chromatogram under
comparable conditions, work is normally performed with a freshly regen-
erated and rinsed suppressor unit.
CAUTION
The Metrohm Suppressor Module (MSM) must never be switched over
if liquid is not flowing through it, since otherwise it may become jam-
med. If the Metrohm Suppressor Module (MSM) is in a dry state, it must
be rinsed for at least five minutes before it may be switched over.
CAUTION
The Metrohm Suppressor Module (MSM) must be regenerated
(see chapter 5.3.3.4, page 38)
replaced
(see chapter 5.3.3.5, page 40)
if the capacity of the
Metrohm Suppressor Module (MSM) is reduced or if the backpressure is
high.
5.3.2
Taking care of the suppressor housing
CAUTION
The transparent suppressor housing can become fogged.
The suppressor housing is made of PMMA (poly(methyl methacrylate)).
It can become scratched and foggy if cleaned improperly. This can make
viewing the rotor difficult or impossible.
￭
Do
not use any scouring agents
for cleaning.
￭
Do
not use any solvents
for cleaning.
5.3.3
Servicing the Metrohm Suppressor Module (MSM)
NOTICE
The following chapters equally apply to the suppressor and the sample
preparation module (SPM).