Metrohm 872 Extension Module Suppression – MCS - Manual (Page 51)

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6 Troubleshooting
872 Extension Module Suppression – MCS
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6 Troubleshooting
6.1 Problems and their solutions
Problem Cause Remedy
Marked rise in pres-
sure Suppressor – blocked. ￭ Regenerate the suppressor (see Chapter
5.4.3.2, page 36).
Note: 6.2821.180 pump tubing connection
with filter must be used.
Peak areas lower
than expected MCS – not connected. Connect the MCS.
Peristaltic pump –
insufficient or no
delivery rate Peristaltic pump – contact
pressure too weak. Correctly set contact pressure (see "Set flow
rate", page 20).
Peristaltic pump – filter
blocked. Replace the filter (see Chapter 5.3.2.2, page
34).
Peristaltic pump – pump
tubing defective. Replace pump tubing (see Chapter 5.3.2.1,
page 33).
Very noisy baseline MCS –
CO
2
adsorption cartridge
exhausted.
Replace CO
2
adsorption cartridge (see Chapter
5.5.1, page 41).
MCS – vacuum pump
defective. Contact the Metrohm Service.
Background conduc-
tivity too high Suppressor – not connec-
ted. Connect the suppressor (see Chapter 3.6,
page 21).
MCS – not connected. Connect the MCS.
Suppressor – regeneration
or rinsing solution flow
problems. Check the flow of the regeneration and rinsing
solution (see Chapter 3.6.2, page 24).
Suppressor – No (or
insufficient) pump-
ing of regeneration
or rinsing solution Leak in the system. Check connections.
Peristaltic pump – contact
pressure too weak. Correctly set contact pressure (see "Set the
contact pressure", page 20).
Peristaltic pump – filter
blocked . Replace the filter (see "Replacing the filter",
page 34).