Metrohm 837IC User Manual
837 IC Degasser
CH-9101 Herisau/Switzerland
E-Mail info@metrohm.com
Internet www.metrohm.com
Instructions for Use
8.837.1003
CH-9101 Herisau/Switzerland
E-Mail info@metrohm.com
Internet www.metrohm.com
837 IC Eluent Degasser
837 IC Sample Degasser
837 IC Combi Degasser
Instructions for Use 8.837.1003
8.837.1003 02.2004 / chs
Teachware
Metrohm AG
Oberdorfstrasse 68
CH-9101 Herisau
teachware@metrohm.com
1st Edition 2004
These instructions are protected by copyright. All rights reserved.
Although all the information given in these instructions has been checked with great care, errors
cannot be entirely excluded. Should you notice any mistakes please inform the author at the
address given above.
Table of contents
Table of contents
1 Introduction.................................................... 1
1.1 Instrument description ............................................................. 1
1.2 Parts and controls .................................................................... 2
1.2.1 Front view 837 IC Eluent Degasser............................................... 2
1.2.2 Front view 837 IC Sample Degasser ............................................3
1.2.3 Front view 837 IC Combi Degasser ..............................................4
1.2.4 Rear view 837 IC (Eluent/Sample/Combi) Degasser.................... 5
1.3 Information about the Instructions for Use ............................. 6
1.3.1 Organization ..................................................................................6
1.3.2 Notation and pictograms ..............................................................7
1.4 Safety notes ..............................................................................8
1.4.1 Electrical safety..............................................................................8
1.4.2 General safety measures ..............................................................8
2 Installation ..................................................... 9
2.1 Instrument setup....................................................................... 9
2.1.1 Packaging...................................................................................... 9
2.1.2 Checks...........................................................................................9
2.1.3 Location ......................................................................................... 9
2.1.4 Arrangement of the instruments....................................................9
2.2 Connecting the tubing ............................................................ 10
2.2.1 Tubing connections for eluent flow path.....................................10
2.2.2 Tubing connections for sample flow path................................... 12
2.3 Connection to a modular IC system ...................................... 13
2.3.1 Electrical connection to 830 IC Interface ....................................13
2.3.2 Settings in «IC Net»......................................................................13
2.4 Connecting to the 761 Compact IC........................................ 14
2.4.1 Electrical connection to the 761 Compact IC .............................14
2.4.2 Settings for control with the «761 PC Software» .........................14
2.5 Mains connection.................................................................... 15
2.5.1 Mains voltage ..............................................................................15
2.5.2 Fuse.............................................................................................15
2.5.3 Mains cable and mains connection ............................................16
2.5.4 Switching the instrument on/off...................................................16
3 Operation...................................................... 17
3.1 General information................................................................ 17
3.2 Routine operation ................................................................... 17
3.2.1 Manual operation ........................................................................17
3.2.2 Control with «IC Net» ...................................................................17
4 Troubleshooting - Problems......................... 18
4.1 Remedying faults and problems ............................................ 18
4.2 Chromatography problems .................................................... 18
4.3 Instrument problems ..............................................................18
4.4 Carry-over with sample degassing ........................................ 19
4.4.1 Determination of the "Transfer time"............................................19
4.4.2 Check sample carry-over ............................................................19
4.5 Care and maintenance............................................................ 20
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
I
Table of contents
5 Appendix ....................................................... 21
5.1 Technical specifications......................................................... 21
5.2 Scope of delivery .................................................................... 23
5.2.1 2.837.0010 IC Eluent Degasser .................................................. 23
5.2.2 2.837.0020 IC Sample Degasser................................................ 24
5.2.3 2.837.0030 IC Combi Degasser .................................................25
5.3 Optional accessories .............................................................. 26
5.4 Validation / GLP ...................................................................... 27
5.5 Warranty and conformity ........................................................ 28
5.5.1 Warranty ......................................................................................28
5.5.2 Declaration of Conformity ...........................................................29
5.5.3 Quality Management Principles .................................................. 30
5.5.4 Index............................................................................................ 31
List of illustrations
Fig. 1: Front view 837 IC Eluent Degasser.................................................. 2
Fig. 2: Front view 837 IC Sample Degasser ............................................... 3
Fig. 3: Front view 837 IC Combi Degasser................................................. 4
Fig. 4: Rear view 837 IC (Eluent/Sample/Combi) Degasser....................... 5
Fig. 5: Connection of 837 IC (Eluent/Sample/Combi) Degasser to
830 IC Interface.............................................................................. 13
Fig. 6: Connecting the 837 IC (Eluent/Sample/Combi) Degasser to the
761 Compact IC............................................................................. 14
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
II
1.1 Instrument description
1 Introduction
1.1 Instrument description
837 IC Eluent Degasser:
The 837 IC Eluent Degasser is used for degassing eluents. Gas bubbles in eluents produce an unstable baseline as high-pressure pumps
for ion chromatography can transport liquids but not gases. This is why
eluents must be degassed before use. The degasser module is simply
included between the eluent and the IC pump. Then the eluent flows
through the special Teflon-AF
chamber. The vacuum removes small gas bubbles, and reduces the
content of solved gases like carbon dioxide or nitrogen. Timeconsuming manual eluent degassing is no longer necessary. The 837
IC Eluent Degasser is equipped with two vacuum chambers so that two
eluent flows can be degassed simultaneously.
®
-capillary, which is located in a vacuum
837 IC Sample Degasser:
The 837 IC Sample Degasser is also used for degassing samples. For
samples apply the same rules as for eluents: they cannot be injected
directly, if they either contain or release gas bubbles. The indication of
injecting samples containing gas bubbles is a poor reproducibility, because the amount of sample in the sample loop would vary. This means
that these (gas-containing) samples must be degassed before the injection. The 837 IC Sample Degasser automates the degassing. Before
the sample reaches the injection valve it passes a special Teflon-AF
capillary, which is located in a vacuum chamber. The vacuum removes
small gas bubbles, and reduces the content of solved gases like carbon dioxide or nitrogen. The 837 IC Sample Degasser is equipped with
a large-volume vacuum chamber and, for example, allows direct determination of drinks containing carbon dioxide without any manual
sample preparation.
837 IC Combi Degasser:
The 837 IC Combi Degasser is the combination of an 837 IC Eluent
Degasser and an 837 IC Sample Degasser. Both degassing of eluents
and degassing of samples can be carried out with it. The 837 IC Combi
Degasser is simply included between eluent and IC pump or between
sample and the injection valve. Eluent and sample then flow through
the special Teflon-AF
um chambers. The 837 IC Combi Degasser is equipped with a total of
three vacuum chambers so that two eluent streams and one sample
stream can be degassed simultaneously.
®
-capillaries, which are located in separate vacu-
®
-
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
1
1 Introduction
1.2 Parts and controls
In this section you will find the numbers and designations of the parts
and controls of the 837 IC (Eluent/Sample/Combi) Degasser. The
numbering applies throughout the instructions for use, i.e. bold numbers in the text (e.g.
1.2.1 Front view 837 IC Eluent Degasser
3
) refer to the parts and controls illustrated here.
1
2
3
4
6
5
Fig. 1: Front view 837 IC Eluent Degasser
Mains pilot lamp
1
Lights up when instrument is switched
on.
Status - display
2
Lights up when pump is running.
mm Hg <90 - display
3
Lights up when the pressure is between 90 and 65 mm Hg.
2
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
Abs <65 - display
4
Lights up when the pressure is below
65 mm Hg.
Inlets eluent streams
5
Inlets for 2 eluent streams.
Outlets eluent streams
6
Outlets for 2 eluent streams.
1.2 Parts and controls
1.2.2 Front view 837 IC Sample Degasser
1
8
3
2
4
7
Fig. 2: Front view 837 IC Sample Degasser
Mains pilot lamp
1
Lights up when instrument is switched
on.
Status - display
2
Lights up when pump is running.
mm Hg <90 - display
3
Lights up when the pressure is between 90 and 65 mm Hg.
Abs <65 - display
4
Lights up when the pressure is below
65 mm Hg.
7
Inlet sample stream
Inlet for 1 sample stream.
Outlet sample stream
8
Outlet for 1 sample streams.
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
3
1 Introduction
1.2.3 Front view 837 IC Combi Degasser
1
8
2
3
4
7
6
5
Fig. 3: Front view 837 IC Combi Degasser
Mains pilot lamp
1
Lights up when instrument is switched
on.
Status - display
2
Lights up when pump is running.
mm Hg <90 - display
3
Lights up when the pressure is between 90 and 65 mm Hg.
Abs <65 - display
4
Lights up when the pressure is below
65 mm Hg.
Inlets eluent streams
5
Inlets for 2 eluent streams.
Outlets eluent streams
6
Outlets for 2 eluent streams.
7
Inlet sample stream
Inlet for 1 sample stream.
Outlet sample stream
8
Outlet for 1 sample stream.
4
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
1.2 Parts and controls
1.2.4 Rear view 837 IC (Eluent/Sample/Combi) Degasser
9
10
11
12
13
15
14
Fig. 4: Rear view 837 IC (Eluent/Sample/Combi) Degasser
Serial number
9
Remote switch
10
Activates the remote control.
ON: active
OFF: not active
Fuse holder
11
Changing the fuses, see section 2.5.2.
Mains switch
12
For switching instrument on/off:
I = ON 0 = OFF
Mains connector
13
For mains connection see section
2.5.3.
Remote-Interface
14
For connection to 830 IC Interface or to
761 Compact IC.
Exhaust opening
15
Exhaust for gases.
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
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1 Introduction
1.3 Information about the Instructions for Use
Please study these Instructions for Use carefully before you start to
use the 837 IC (Eluent/Sample/Combi) Degasser. The instructions
contain information and warnings that must be observed by the user in
order to guarantee the safe use of the instrument. Please keep these
instructions near the instrument so that they are always to hand when
required.
1.3.1 Organization
These 8.837.1003 Instructions for Use for the 837 IC (Eluent/Sample/
Combi) Degasser provide you with a comprehensive overview of the installation, startup, troubleshooting and technical specifications of the
instrument. The instructions are arranged as follows:
Section 1 Introduction
General description of the instrument, operating parts
and controls, and safety notes.
Section 2 Installation
Installation of the instrument, tubing connections,
electrical connections, mains connection.
Section 3 Operation
General instructions, controls.
Section 4 Troubleshooting - Problems
Possible faults and their remedies, maintenance.
Section 5 Appendix
Technical data, standard equipment, optional accessories, warranty and declaration of conformity, index.
In order to find the information you require about the 837 IC (Eluent/Sample/Combi) Degasser, you should either use the Contents or
the Index.
6
837 IC (Eluent/Sample/Combi) Degasser/ Instructions for Use 8.837.1003
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