Metrohm 850 Professional IC AnCat User Manual
Page 107
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Troubleshooting
850 Professional IC – AnCat
￭￭￭￭￭￭￭￭
97
Problem
Cause
Remedy
MSM – regeneration or
rinsing solution flow prob-
lems.
Check the flow of the regeneration and rinsing
solution (see Chapter 2.16.2, page 47).
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 – No (or insuf-
ficient) pumping of
regeneration or rins-
ing solution
Leak in the system.
Check connections.
Peristaltic pump – contact
pressure too weak.
Correctly set contact pressure (see "Set flow
rate", page 54).
Peristaltic pump – filter
blocked (see Figure 29,
page 52).
Replace the filter (see "Replacing the filter",
page 91).
MSM – backpressure too
high.
Clean the MSM (see Chapter 4.11.3.2, page
85) or replace parts (see Chapter 4.11.3.3,
page 88).
Peristaltic pump – pump
tubing defective.
Replace pump tubing (see Figure 28, page 51).
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 4.14.4, page 93).
￭
Replace separation column (see "Connect-
ing and rinsing the separation column",
page 61).
Conductivity detec-
tor is not recognized
in the software
No connection.
￭
Check the cable connection (32-
￭
Turn the instrument off and on again (after
15 seconds).