Metrohm 930 Compact IC Flex ChS/PP - Manual (Page 100)

6.1
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92 ￭￭￭￭￭￭￭￭
930 Compact IC Flex ChS/PP (2.930.1300)
Problem Cause Remedy
Suppressor – Insuffi-
cient flow of regen-
eration solution or
rinsing solution. There is a leak in the sys-
tem. Check all connections.
Peristaltic pump – Contact
pressure too weak. Correctly set the contact pressure .
Peristaltic pump – Filter
blocked. Replace the filter (see Chapter 5.11.2.2, page
85).
Suppressor – Backpressure
too high. Clean the suppressor (see Chapter 5.10.3.3,
page 79) or replace parts (see Chapter
5.10.3.4, page 81).
Peristaltic pump – Pump
tubing defective. Replace the pump tubing.
The background
conductivity is too
high. The suppressor is not con-
nected. Connect the suppressor (see Chapter 3.10,
page 28).
The incorrect eluent is
being used. Change the eluent (see Chapter 5.4.2, page
58).
Suppressor – No or insuffi-
cient flow of regeneration
solution or rinsing solution. Check the flow of the regeneration solution
and the rinsing solution .
The retention times
are poorly reprodu-
cible. The eluent path has a leak. Check all of the connections along the eluent
path and fix the leak.
The eluent path is blocked. Check the eluent path and fix the blockage.
The eluent contains gas
bubbles. ￭ Inspect the connectors for the eluent
degasser .
￭ Deaerate the high-pressure pump (see
Chapter 3.15, page 44).
Baseline increasing
strongly. Suppressor – Reduced
capacity. Regenerate the suppressor (see Chapter
5.10.3.2, page 78).
SPM – Reduced capacity. Regenerate the SPM (see Chapter 5.10.3.2,
page 78).
Chromatograms
have poor resolution Separation column –
Diminished separating effi-
ciency. ￭ Regenerate the separation column (see
Chapter 5.14.4, page 88).
￭ Replace the separation column (see "Con-
necting the separation column", page 50).