6 troubleshooting, 7 technical specifications – Metrohm 930 Compact IC Flex Oven/SeS/PP/Deg User Manual
Page 108
6.1
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930 Compact IC Flex Oven/SeS/PP/Deg (2.930.2560)
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 is not suffi-
ciently degassed.
Ensure that the connectors for the eluent
degasser are firmly connected (see Chapter
5.6, page 65).
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 5.8, page 67).
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 5.8,
page 67).
MCS – The
CO
2
adsorber cartridge is
depleted.
Replace the CO
2
The pulsation absorber is
not connected or is defec-
tive.
Connect (see Chapter 3.10, page 25) or
replace the pulsation absorber.
MCS – The vacuum pump is
defective.
Contact Metrohm Service.
The baseline is drift-
ing.
Thermal equilibrium is not
yet attained.
Condition (see Chapter 3.22, page 57) the
instrument with the column oven (see Chapter
3.5, page 19) switched on.
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
3.6, page 20).
￭
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) .