￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
7 Troubleshooting
930 Compact IC Flex Oven/SeS/PP (2.930.2500)
￭￭￭￭￭￭￭￭
99
Problem Cause Remedy
MCS – The CO
2
suppressor
is not connected.
Connect the CO
2
suppressor.
The peristaltic pump
is pumping too little.
Peristaltic pump – Contact
pressure too weak.
Correctly set the contact pressure (see "Setting
the contact pressure correctly", page 41).
Peristaltic pump – Filter
blocked.
Replace the filter (see "Replacing the filter",
page 92).
Peristaltic pump – Pump
tubing defective.
Replace the pump tubing (see chapter
6.12.2.1, page 91).
Data of the separa-
tion column cannot
be read.
Column chip dirty. Clean the contact surfaces of the column chip
with ethanol.
Column chip is defective. 1. Save column configuration in MagIC Net.
2. Notify Metrohm Service.
Individual peaks are
greater than
expected.
Sample – Sample carry-
over from previous meas-
urements.
Check the rinsing time (see "Checking the rins-
ing time", page 95).
MSM – Insufficient
flow of regeneration
solution or rinsing
solution.
Peristaltic pump – Contact
pressure too weak.
Correctly set the contact pressure .
Peristaltic pump – Filter
blocked.
Replace the filter (see chapter 6.12.2.2, page
92).
Peristaltic pump – Pump
tubing defective.
Replace the pump tubing.
The background
conductivity is too
high.
The MSM is not connected. Connect the MSM (see chapter 4.11, page
30).
The incorrect eluent is
being used.
Change the eluent (see chapter 6.5.2, page
65).
MSM – No or insufficient
flow of regeneration solu-
tion or rinsing solution.
Check the flow of the regeneration solution
and of the rinsing solution .
MCS – The CO
2
suppressor
is not connected.
Connect the CO
2
suppressor.
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.
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