4 Troubleshooting - Problems
853 CO
2
Suppressor / Instructions for Use 8.853.8001EN
12
4 Troubleshooting - Problems
4.1
Remedying faults and problems
If difficulties occur during analyses with your IC system then it is best to
search for their causes in the following sequence:
column
→
pump
→
eluent
→
IC system
. In the Instructions for Use of your Modular IC
system or Compact IC you will find an overview of possible faults to-
gether with their causes and remedies.
In addition to these general problems, the following section covers
those problems which could arise from the use of the 853 CO
2
Supp-
ressor.
4.2 Chromatography
problems
Problem
Cause
Remedy
Poor retention time
reproducibility
•
Leak
in the instrument.
•
Blockage
in flow path.
•
Contact Metrohm Service.
•
Check the capillary connections
and replace any compressed
capillaries
Noisy
or
unstable
baseline
•
Leak
in the instrument.
•
Blockage
in flow path
•
CO
2
cartridge exhausted
•
Vacuum pump faulty
•
Contact Metrohm Service.
•
Check the capillary connections
and replace any compressed
capillaries
•
Replace CO
2
cartridge (see Sec-
tion
)
•
Contact Metrohm Service.
High
pressure
in the
system
•
Pressure screws
tightened up too far.
•
A liquid-transporting
component in the device
is
blocked
.
•
Loosen pressure screws slightly
or replace connection (cut new
capillary end)
•
Contact Metrohm Service.
Poor peak shape
•
Dead volume
in system
•
Check capillaries
Содержание 853 CO2 Suppressor
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