Metrohm 850 Professional IC Anion MSM-HC User Manual
Page 111
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6 Troubleshooting
850 Professional IC Anion – MSM-HC
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101
Problem
Cause
Remedy
MSM-HC – regeneration or
rinsing solution flow prob-
lems.
Check the flow of the regeneration and rinsing
solution (see Chapter 3.16.2, page 51).
Data of the separa-
tion column cannot
be read.
Column chip contamina-
ted.
Clean contact surfaces of the column chip
(with alcohol).
Column chip defective.
1. Save column configuration in MagIC Net.
2. Notify Metrohm Service.
Individual peaks
greater than expec-
ted
Sample – Carry-over of the
samples from previous
measurement.
Rinse system longer between two samples.
MSM-HC – 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 .
Peristaltic pump – filter
blocked .
Replace the filter .
MSM-HC – backpressure
too high.
Clean the MSM-HC (see Chapter 5.11.3.2,
page 89) or replace parts (see Chapter
5.11.3.3, page 92).
Peristaltic pump – pump
tubing defective.
Replace pump tubing .
Poor reproducibility
of the retention
times
Eluent – Leak in the eluent
path.
Check the eluent path.
Eluent – Blockage in the
eluent path.
Check the eluent path.
Chromatograms
have poor resolution
Separation column –
diminished separating effi-
ciency.
￭
Regenerate separation column (see Chap-
ter 5.14.4, page 97).
￭
Replace separation column (see "Connect-
ing and rinsing the separation column",
page 65).
Conductivity detec-
tor is not recognized
in the software
No connection.
￭
Check the cable connection (33-
￭
Switch the instrument off and on again
(after 15 seconds).