6 troubleshooting, 7 technical specifications – Metrohm 930 Compact IC Flex SeS User Manual
Page 95
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6 Troubleshooting
930 Compact IC Flex SeS (2.930.1400)
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87
6 Troubleshooting
Problem
Cause
Remedy
Marked drop in
pressure.
Leak in the system.
Check all capillary connections and seal leaks,
if necessary (see Chapter 3.2, page 13).
The baseline has a
large amount of
noise.
The eluent path has a leak.
Check the eluent path and fix the leak.
High-pressure pump – Con-
taminated pump valves.
Clean pump valves (see Chapter 5.6, page 58).
The eluent path is blocked.
Check the eluent path and fix the blockage.
High-pressure pump –
Defective piston seals.
Replace the piston seals (see Chapter 5.6,
page 58).
MCS – The
CO
2
adsorber cartridge is
depleted.
Replace the CO
2
adsorber cartridge (see Chap-
The pulsation absorber is
not connected or is defec-
tive.
Connect (see Chapter 3.8, page 25) or replace
the pulsation absorber.
MCS – The vacuum pump is
defective.
Contact Metrohm Service.
The baseline is drift-
ing.
Leak in the system.
Check all capillary connections and seal leaks,
if necessary (see Chapter 3.2, page 13).
The organic solvent in the
eluent is evaporating.
￭
Check the eluent bottle cap (see Chapter
3.5, page 19).
￭
Constantly stir the eluent.
The pressure in the
system markedly
increases.
The inline filter
(6.2821.120) is blocked.
Replace the filter (6.2821.130) .
Suppressor blocked.
￭
Regenerate the suppressor (see Chapter
5.10.3.2, page 76).
Note: 6.2821.180 pump tubing connection
with filter must be used.
Guard column – Blocked.