Metrohm 930 Compact IC Flex Oven/SeS/Deg User Manual Page 100
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6.1
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
92
￭￭￭￭￭￭￭￭
930 Compact IC Flex Oven/SeS/Deg (2.930.2460)
Problem Cause Remedy
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 the previous
measurement.
Check the rinsing time (see "Checking the rins-
ing time", page 87).
Suppressor – Insuffi-
cient flow of regen-
eration solution or
rinsing solution.
There is a leak in the sys-
tem.
Check all connections.
Suppressor – Backpressure
too high.
Clean the suppressor (see Chapter 5.12.3.3,
page 80) or replace parts (see Chapter
5.12.3.4, page 82).
The background
conductivity is too
high.
The suppressor is not con-
nected.
Connect the suppressor (see Chapter 3.12,
page 28).
The incorrect eluent is
being used.
Change the eluent (see Chapter 5.5.2, page
59).
Suppressor – No or insuffi-
cient flow of regeneration
solution or rinsing solution.
Check the flow of the regeneration solution
and 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.
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 3.18, page 44).
Baseline increasing
strongly.
Suppressor – Reduced
capacity.
Regenerate the suppressor (see Chapter
5.12.3.2, page 79).
SPM – Reduced capacity. Regenerate the SPM (see Chapter 5.12.3.2,
page 79).
Chromatograms
have poor resolution
Separation column –
Diminished separating effi-
ciency.
￭ Regenerate the separation column (see
Chapter 5.16.4, page 88).
￭ Replace the separation column (see "Con-
necting the separation column", page 50).
- 930 Compact IC Flex 1
- Table of contents 5
- 4 Operation 53 6
- 6 Troubleshooting 90 7
- 8 Warranty (guarantee) 100 7
- 9 Accessories 102 7
- Index 104 7
- Table of figures 8
- 1 Introduction 9
- ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 10
- ￭￭￭￭￭￭￭￭ 10
- 1.2 Intended use 11
- 1.3 Safety instructions 11
- 1.3.2 Electrical safety 12
- 1.3.5 Recycling and disposal 13
- 1.4 Symbols and conventions 14
- 2 Overview of the instrument 15
- 2.2 Rear 16
- 2 Overview of the instrument 17
- ￭ Openings on the door 18
- ￭ Openings on the back panel 18
- 3 Installation 21
- ￭ Hex key 4 mm (6.2621.030) 24
- 3.5 Column oven 27
- 3 Installation 33
- 3.11 Injection valve 34
- 3.12 Suppressor 36
- 3.13 Metrohm CO 44
- 3.13.2 Connecting the MCS 45
- 3.14 Installing the detector 48
- 3.18 Initial start-up 52
- 3.21 Conditioning 59
- 4 Operation 61
- 5 Operation and maintenance 62
- 5.2 Capillary connections 64
- 5.3 Servicing the door 64
- Figure 15 Column oven 65
- 5.5 Handling the eluent 66
- 5.5.2 Changing the eluent 67
- 5 Operation and maintenance 69
- 5.11 Injection valve 85
- 5.12 Suppressor 85
- 5.12 Suppressor 86
- 5.14 Servicing the detector 94
- 5.15 Rinsing the sample path 94
- 5.16 Separation column 95
- 6 Troubleshooting 98
- 6 Troubleshooting 101
- 7 Technical specifications 102
- 7.4 Housing 103
- 7.5 Leak sensor 103
- 7.6 Column oven 103
- 7.8 High-pressure pump 104
- 7.7 Eluent degasser 104
- 7.9 Injection valve 105
- 7.10 Suppressor 105
- 7.11 Metrohm CO 105
- Suppressor (MCS) 105
- 7.12 Detector 106
- 7.13 Sample degasser 106
- 7.14 Power connection 106
- 7.15 Interfaces 106
- 7.16 Safety specifications 107
- 8 Warranty (guarantee) 108
- 9 Accessories 110
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