Metrohm 872 User manual

872 Extension Module
2.872.0120 – Suppression – MCS
Manual
8.872.8007EN

Metrohm AG
CH-9101 Herisau
Switzerland
Phone [phone]
Fax [phone]
[email protected]
www.metrohm.com
872 Extension Module
2.872.0120 – Suppression – MCS
Manual
8.872.8007EN 10.2010 zst

Teachware
Metrohm AG
CH-9101 Herisau
[email protected]
This documentation is protected by copyright. All rights reserved.
Although all the information given in this documentation has been
checked with great care, errors cannot be entirely excluded. Should you
notice any mistakes please send us your comments using the address
given above.
Documentation in additional languages can be found on
http://products.metrohm.com under Literature/Technical documenta-
tion.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ III
Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.2 Intended use ......................................................................... 2
1.3 About the documentation ................................................... 2
1.3.1 Content and scope .................................................................. 2
1.3.2 Symbols and conventions ........................................................ 2
1.4 Safety instructions ................................................................ 3
1.4.1 General notes on safety ........................................................... 3
1.4.2 Electrical safety ........................................................................ 3
1.4.3 Tubing and capillary connections ............................................. 4
1.4.4 Flammable solvents and chemicals ........................................... 5
1.4.5 Recycling and disposal ............................................................. 5
2 Overview of the instrument 6
2.1 Front ...................................................................................... 6
2.2 Rear ........................................................................................ 7
2.3 Extension Module and 850 Professional IC instru-
ment ....................................................................................... 7
3 Installation 9
3.1 Installation overview ............................................................ 9
3.2 Setting up the instrument .................................................. 10
3.2.1 Packaging .............................................................................. 10
3.2.2 Checks .................................................................................. 10
3.2.3 Location ................................................................................ 10
3.3 Mounting base tray and bottle holder (optional) ............ 10
3.3.1 Removing / mounting the base tray ....................................... 10
3.3.2 Removing / mounting the bottle holder ................................. 12
3.4 Transport locking screws ................................................... 15
3.5 Peristaltic pump .................................................................. 15
3.5.1 Principle of the peristaltic pump ............................................. 15
3.5.2 Installing the peristaltic pump ................................................ 17
3.6 Suppressor drive ................................................................. 21
3.6.1 Inserting the rotors ................................................................ 21
3.6.2 Connecting the suppressor .................................................... 24
3.7 Metrohm CO2 Suppressor (MCS) ....................................... 26
3.7.1 General information on the MCS ........................................... 26
3.7.2 Connecting MCS ................................................................... 26
3.7.3 Installing the adsorption cartridges ........................................ 28

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
4 Start-up 30
5 Operation and maintenance 31
5.1 General information ........................................................... 31
5.1.1 Care ...................................................................................... 31
5.1.2 Maintenance by Metrohm Service .......................................... 31
5.1.3 Operation .............................................................................. 31
5.1.4 Shutting down ...................................................................... 32
5.2 Door ..................................................................................... 32
5.3 Peristaltic pump .................................................................. 32
5.3.1 Operation .............................................................................. 32
5.3.2 Maintenance ......................................................................... 33
5.4 Suppressor/SPM .................................................................. 35
5.4.1 Protection .............................................................................. 35
5.4.2 Operation Suppressor ........................................................... 35
5.4.3 Maintenance ......................................................................... 36
5.5 Metrohm CO2 Suppressor (MCS) ....................................... 41
5.5.1 Replacing the CO2 adsorption cartridge ................................. 41
5.5.2 Regenerating the H2O adsorption cartridge ............................ 41
5.6 Quality Management and validation with Metrohm ....... 42
6 Troubleshooting 43
6.1 Problems and their solutions ............................................. 43
7 Technical specifications 45
7.1 Reference conditions .......................................................... 45
7.2 Instrument ........................................................................... 45
7.3 Ambient conditions ............................................................ 45
7.4 Housing ............................................................................... 46
7.5 Peristaltic pump .................................................................. 46
7.6 Suppressor .......................................................................... 46
7.7 Metrohm CO2 Suppressor (MCS) ....................................... 46
7.8 Interfaces ............................................................................. 47
7.9 Safety specification ............................................................ 47
7.10 Electromagnetic compatibility (EMC) ................................ 47
7.11 Weight ................................................................................. 47
8 Conformity and warranty 48
8.1 Declaration of Conformity ................................................ 48
8.2 Quality Management Principles ........................................ 49

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ V
8.3 Warranty (guarantee) ......................................................... 50
9 Accessories 51
9.1 Scope of delivery ................................................................ 51
9.2 Optional accessories ........................................................... 55
Index 56

Table of figures ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
VI ￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
Table of figures
Figure 1 Front 872 Extension Module Suppression – MCS ............................... 6
Figure 2 Rear 872 Extension Module Suppression – MCS ................................ 7
Figure 3 Proposed setup ................................................................................. 8
Figure 4 Peristaltic pump ............................................................................... 16
Figure 5 Installing the pump tubing .............................................................. 17
Figure 6 Install pump tubing connection with filter ....................................... 18
Figure 7 Install pump tubing connection without filter .................................. 19
Figure 8 Rotors and adapter .......................................................................... 21
Figure 9 Suppressor – connection capillaries ................................................. 24
Figure 10 MCS – connection ........................................................................... 27
Figure 11 Adsorption cartridge holder ............................................................. 28
Figure 12 Pump tubing connection – Changing the filter ................................. 34
Figure 13 Components ................................................................................... 36

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 1
1 Introduction
1.1 Instrument description
Existing 850 Professional IC instruments can be expanded to include addi-
tional functions by means of 872 Extension Modules. Every 850 Professio-
nal IC instrument can be supplemented with up to 3 extension modules.
The 872 Extension ModuleSuppression – MCS permits to add an
additional suppression module to a Professional IC system.
The 872 Extension ModuleSuppression – MCS can be used wherever an
additional module for sequential suppression is necessary.
The extension module is operated with MagIC Net software, just like the
IC instrument. When it is connected to an 850 Professional IC instrument,
MagIC Net recognizes the extension module automatically and checks its
functional capability. It controls and monitors the unit IC instrument –
extension module, evaluates the measured data and administers it in a
database.
The 872 Extension ModuleSuppression – MCS comprises the following
components:
Peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
Suppressor drive
The suppressor drive allows you to flexibly use different rotors according
to the principle "one drive – many rotors". With appropriate adapters, the
rotor for the sample preparation module (SPM Rotor) or suppressor rotors
with different capacities and construction can be easily exchanged.
Metrohm CO2 Suppressor (MCS)
The Metrohm CO2 Suppressor (MCS) removes the CO2 from the eluent
flow. This reduces the background conductivity, improves the detection
sensitivity and minimizes the injection and carbonate peaks.

1.2 Intended use ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
1.2 Intended use
This instrument is suitable for processing chemicals and flammable sam-
ples. The usage of the 872 Extension Module therefore requires that the
user has basic knowledge and experience in the handling of toxic and
caustic substances. Knowledge with respect to the application of the fire
prevention measures prescribed for laboratories is also mandatory.
1.3 About the documentation
1.3.1 Content and scope
This document describes the 872 Extension Module – Suppression –
MCS, its assembly and connection to the IC instrument, as well as the
installation, operation and maintenance of the individual components.
Technical specifications, troubleshooting and information concerning
scope of delivery and optional accessories makes up the rest of the man-
ual.
This document does not on the other hand describe the functions of the
IC instrument - IC extension module unit, nor does it describe the capillary
connections that proceed from the extension module. For this purpose,
please refer to the manual for the IC instrument and that for the sample
processor.
Additional information concerning the configuration of MagIC Net can be
found on the online help for MagIC Net.
1.3.2 Symbols and conventions
The following symbols and styles are used in this documentation:
Cross-reference to figure legend
The first number refers to the figure number, the
second to the instrument part in the figure.
Instruction step
Carry out these steps in the sequence shown.
Warning
This symbol draws attention to a possible life hazard
or risk of injury.
Warning
This symbol draws attention to a possible hazard due
to electrical current.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 3
Warning
This symbol draws attention to a possible hazard due
to heat or hot instrument parts.
Warning
This symbol draws attention to a possible biological
hazard.
Caution
This symbol draws attention to a possible damage of
instruments or instrument parts.
Note
This symbol marks additional information and tips.
1.4 Safety instructions
1.4.1 General notes on safety
Warning
This instrument may only be operated in accordance with the specifica-
tions in this documentation.
This instrument has left the factory in a flawless state in terms of technical
safety. To maintain this state and ensure non-hazardous operation of the
instrument, the following instructions must be observed carefully.
1.4.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
Warning
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.

1.4 Safety instructions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
Warning
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
Mains voltage
Warning
An incorrect mains voltage can damage the instrument.
Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
Protection against electrostatic charges
Warning
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
Always pull the mains cable out of the mains connection socket before
connecting or disconnecting electrical appliances on the rear panel of
the instrument.
1.4.3 Tubing and capillary connections
Caution
Leaks in tubing and capillary connections are a safety risk. Tighten all
connections well by hand. Avoid applying excessive force to tubing
connections. Damaged tubing ends lead to leakage. Appropriate tools
can be used to loosen connections.
Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are manda-
tory.

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872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 5
1.4.4 Flammable solvents and chemicals
Warning
All relevant safety measures are to be observed when working with
flammable solvents and chemicals.
￭Set up the instrument in a well-ventilated location (e.g. laboratory
flue).
￭Keep all sources of flame far from the workplace.
￭Clean up spilled fluids and solids immediately.
￭Follow the safety instructions of the chemical manufacturer.
1.4.5 Recycling and disposal
This product is covered by European Directive 2002/96/EC, WEEE – Waste
from Electrical and Electronic Equipment.
The correct disposal of your old equipment will help to prevent negative
effects on the environment and public health.
More details about the disposal of your old equipment can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.

2.1 Front ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
2 Overview of the instrument
2.1 Front
1 2
4
3
Figure 1 Front 872 Extension Module Suppression – MCS
1Peristaltic pump
(see Chapter 3.5, page 15)
2MCS
(see Chapter 3.7, page 26)
3Standby indicator 4Suppressor drive
(see Chapter 3.6, page 21)

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872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 7
2.2 Rear
1
2 3 4
Figure 2 Rear 872 Extension Module Suppression – MCS
1Waste air opening
For extracting the air from the vacuum
chamber. Labeled with Exhaust.
2Transport locking screws
For securing the vacuum pump when trans-
porting the instrument.
3Connector In
To connect the extension module to the IC
instrument or to a previous extension mod-
ule.
4Connector Out
To connect an additional extension module.
2.3 Extension Module and 850 Professional IC instru-
ment
The extension modules are fitted directly to the 850 Professional IC instru-
ment and connected with it via the connection cable provided. Extension
modules have no power supply of their own, but rather draw the electric-
ity they require from the instrument with which they are connected.
Extension Modules can be mounted on top of the 850 Professional IC
instrument (between instrument and bottle holder) (3-A), or below the
instrument (between instrument and base tray) (3-B), or set up next to the
instrument (3-C) with separate 6.2061.110 base tray and 6.2061.100 bot-
tle holder (to be ordered separately).

2.3 Extension Module and 850 Professional IC instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
A B C
Figure 3 Proposed setup
AExtension module on top
Between the 850 Professional IC and the
bottle holder.
BExtension module below
Between the base plate and the 850 Profes-
sion IC.
CExtension module separately
With its own base plate and its own bottle
holder next to the 850 bottle holder.
Up to three extension modules can be connected to an 850 Professional
IC instrument. The following restrictions are to be taken into account:
Restrictions The 850 Professional IC instruments and their extension modules must not
have more than 4 identical components in common, i.e.:
￭a maximum of 4 high pressure pumps,
￭a maximum of 4 peristaltic pumps,
￭a maximum of 4 injection valves,
￭a maximum of 4 suppressors (MSM, SPM incl.),
BUT
￭only a maximum of 3 degassers
￭and a maximum of 3 CO2 suppressors (MCS)
Note
If all 4 high pressure pumps are being used at once, then not all of
them are permitted to run at maximum flow for longer periods of time.
Position the extension module in such a way that the capillary connections
can be kept as short as possible. If several extension modules are used,
then they should all be installed in the same location, either on top or
below. If this is not possible, then the extension modules that are located
at greater distances from one another must be connected with one
another by means of the longer 6.2156.070 connection cable.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Installation
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 9
3 Installation
3.1 Installation overview
The 872 Extension Module Suppression – MCS can be installed carrying
out the following easy steps:
1Preparing the instrument
￭Set up the instrument (see Chapter 3.2, page 10)
￭Mount base tray / bottle holder (see Chapter 3.3, page 10)
￭Remove transport locking screws (see Chapter 3.4, page 15)
2Installing the peristaltic pump
(see Chapter 3.5, Page 15).
￭Install pump tubings.
￭Connect aspirating capillaries for the regeneration solution and
the rinsing solution.
3Installing the suppressor
(see Chapter 3.6, Page 21).
￭Insert the rotor.
￭Connect the suppressor.
4Connecting the MCS
See Chapter 3.7.2, Page 26
5Connecting the instrument
￭Connect the socket labeled in on the extension module and the
socket labeled Extension Module on the 850 Professional IC with
the cable 6.2156.070.

3.2 Setting up the instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
3.2 Setting up the instrument
3.2.1 Packaging
The instrument is supplied in highly protective special packaging together
with the separately packed accessories. Keep this packaging, as only this
ensures safe transportation of the instrument.
3.2.2 Checks
Immediately after receipt, check whether the shipment has arrived com-
plete and without damage by comparing it with the delivery note.
3.2.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
Place the instrument in a location of the laboratory which is suitable for
operation, free of vibrations, protected from corrosive atmosphere, and
contamination by chemicals.
The instrument should be protected against excessive temperature fluctu-
ations and direct sunlight.
3.3 Mounting base tray and bottle holder (optional)
The 6.2061.110 base tray and 6.2061.100 bottle holder protect IC instru-
ments from dust, dirt and leaking fluids. If more than one instrument of
the Professional IC family is used, these can be set up in one or more
stacks. We recommend that a bottle holder and a base tray be mounted
on/below each stack of instruments.
Bottle holder and base tray must be removed or mounted every time one
of the following instruments is mounted on or under an 850 Professional
IC instrument:
￭One or more 872 Extension Module.
￭or another instrument of the same support surface.
3.3.1 Removing / mounting the base tray
The base tray must be removed, in case you want to place another instru-
ment under the IC instrument. Proceed as follows:
Removing the base tray
Before you can remove the base tray, the following preconditions must be
met:

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Installation
872 Extension Module Suppression – MCS ￭￭￭￭￭￭￭￭ 11
￭The instrument is switched off.
￭The bottle holder is cleared.
￭All connections at the rear of the instrument are disconnected.
￭There are no loose parts in the instrument.
To remove the base tray, you need the 6.2621.100 hexagon key 3 mm.
123
1Tilt the instrument sideways and lay it down flat.
2Loosen the cylinder screws with the 3 mm hexagon key and remove
them and their washers.
3Remove base tray.
The base tray must always be mounted under the lowermost instrument
of the stack. Proceed as follows:
Mounting the base tray
Before you can mount the base tray, the following preconditions must be
met:
￭The instrument is switched off.
￭The bottle holder is cleared.
￭All connections at the rear of the instrument are disconnected.
￭There are no loose parts in the instrument.
￭The instrument is lying on it side, and the bottom surface is visible.
To mount the base tray, you need the 3 mm hexagon key (6.2621.100).

3.3 Mounting base tray and bottle holder (optional) ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭ 872 Extension Module Suppression – MCS
13
2
1Attach the base tray so that the openings in the base tray match
exactly the screw threads in the bottom of the instrument.
2Slide the four washers onto the four cylinder screws, insert the
screws and tighten them with the 3 mm hexagon key.
3Set the instrument up on the base tray.
Stack other instruments in the required order. Mount the 6.2061.100 bot-
tle holder onto the topmost instrument (see "Mounting the bottle
holder", page 13).
3.3.2 Removing / mounting the bottle holder
The bottle holder must be removed in case you want to mount another
instrument on top of the IC instrument. Proceed as follows:
Removing the bottle holder
Before you can remove the bottle holder, the following preconditions
must be met:
￭The instrument is switched off.
￭The bottle holder is cleared.
￭Drainage tubing is disconnected from the drainage tubing connection
of the bottle holder.
To remove the bottle holder, you need a 3 mm hexagon key
(6.2621.100).