Metrohm 872 User manual

872 Extension Module
IC Module – 2.872.0030
Manual
8.872.8004EN

Metrohm AG
CH-9100 Herisau
Switzerland
Phone [phone]
Fax [phone]
[email protected]
www.metrohm.com
872 Extension Module
IC Module – 2.872.0030
Manual
8.872.8004EN 01.2010 zst

Teachware
Metrohm AG
CH-9100 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 IC Module ￭￭￭￭￭￭￭￭ 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 ........................................................ 3
1.4 Safety instructions ................................................................ 4
1.4.1 General notes on safety ........................................................... 4
1.4.2 Electrical safety ........................................................................ 4
1.4.3 Tubing and capillary connections ............................................. 5
1.4.4 Flammable solvents and chemicals ........................................... 5
1.4.5 Recycling and disposal ............................................................. 5
2 Overview of the instrument 7
2.1 Front ...................................................................................... 7
2.2 Rear ........................................................................................ 8
3 Assembly 9
3.1 General .................................................................................. 9
3.2 Mounting the extension module onto the IC instru-
ment ..................................................................................... 10
3.3 Mounting the extension module below the IC instru-
ment ..................................................................................... 13
3.4 Setting up the extension module next to the IC instru-
ment ..................................................................................... 16
3.5 Transport locking screws ................................................... 20
4 Installation 21
4.1 About this chapter .............................................................. 21
4.2 Installation overview .......................................................... 21
4.3 Installation diagram ........................................................... 22
4.4 Eluent ................................................................................... 23
4.4.1 Connecting eluent bottle ....................................................... 23
4.5 Eluent degasser ................................................................. 27
4.6 High pressure pump ........................................................... 29
4.6.1 Capillary connections high pressure pump/purge valve ........... 29
4.6.2 Deaerating the high pressure pump ....................................... 31

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
4.7 Inline filter ........................................................................... 33
4.8 Pulsation damper ............................................................... 34
4.9 Injection valve ..................................................................... 35
4.9.1 Connecting the injection valve ............................................... 35
4.9.2 Mode of operation of the injection valve ............................... 37
4.9.3 Selecting the sample loop ...................................................... 38
5 Set to work 39
6 Operation and maintenance 40
6.1 General information ........................................................... 40
6.1.1 Care ...................................................................................... 40
6.1.2 Maintenance by Metrohm Service .......................................... 40
6.1.3 Operation .............................................................................. 40
6.1.4 Shutting down ...................................................................... 41
6.2 Door ..................................................................................... 41
6.3 Eluent ................................................................................... 41
6.3.1 Production ............................................................................. 41
6.3.2 Operation .............................................................................. 42
6.4 High pressure pump ........................................................... 42
6.4.1 Protection .............................................................................. 42
6.4.2 Maintenance ......................................................................... 43
6.5 Inline filter ........................................................................... 53
6.5.1 Maintenance ......................................................................... 53
6.6 Inline sample preparation .................................................. 55
6.7 Rinsing the sample path .................................................... 55
6.8 Injection valve .................................................................... 57
6.8.1 Protection .............................................................................. 57
6.9 Quality Management and validation with Metrohm ....... 57
7 Troubleshooting 58
7.1 Problems and their solutions ............................................. 58
8 Technical specifications 60
8.1 Reference conditions .......................................................... 60
8.2 Instrument ........................................................................... 60
8.3 Ambient conditions ............................................................ 60
8.4 Housing ............................................................................... 61
8.5 Eluent degasser .................................................................. 61
8.6 High pressure pump ........................................................... 61
8.7 Injection valve ..................................................................... 62

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
872 Extension Module IC Module ￭￭￭￭￭￭￭￭ V
8.8 Interfaces ............................................................................. 62
8.9 Safety specification ............................................................ 62
8.10 Electromagnetic compatibility (EMC) ................................ 63
8.11 Weight ................................................................................. 63
9 Conformity and warranty 64
9.1 Declaration of Conformity ................................................ 64
9.2 Quality Management Principles ........................................ 65
9.3 Warranty (Guarantee) ........................................................ 66
10 Accessories 68
10.1 Scope of delivery ................................................................ 68
Index 75

Table of figures ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
VI ￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
Table of figures
Figure 1 Front 872 Extension Module IC Module ............................................. 7
Figure 2 Rear 872 Extension Module IC Module .............................................. 8
Figure 3 Setup versions ................................................................................. 10
Figure 4 Dismounting the bottle holder ......................................................... 11
Figure 5 Mounting the bottle holder ............................................................. 12
Figure 6 Removing the base tray ................................................................... 14
Figure 7 Mounting the base tray ................................................................... 15
Figure 8 Mounting the base tray ................................................................... 17
Figure 9 Mounting the bottle holder ............................................................. 18
Figure 10 Connecting the drainage tubings ..................................................... 19
Figure 11 Installation diagram ......................................................................... 23
Figure 12 Installing eluent bottle attachment .................................................. 24
Figure 13 Mounting aspiration filter ................................................................ 24
Figure 14 Install tubing weighting and aspiration filter .................................... 25
Figure 15 Eluent aspiration tubing fully equipped. ........................................... 25
Figure 16 Eluent bottle – connected ............................................................... 26
Figure 17 Eluent degasser ............................................................................... 28
Figure 18 Capillary connections high pressure pump/purge valve .................... 29
Figure 19 High pressure pump – Connect inlet ................................................ 30
Figure 20 Deaerating the high pressure pump ................................................. 32
Figure 21 Connecting inline filter .................................................................... 34
Figure 22 Pulsation damper – Connection ....................................................... 35
Figure 23 Injection valve – connected ............................................................. 36
Figure 24 Injection valve – Positions ................................................................ 37
Figure 25 Removing piston ............................................................................. 44
Figure 26 Components of the piston cartridge ................................................ 45
Figure 27 Tool for piston seal 6.2617.010 ....................................................... 46
Figure 28 Removing the piston seal ................................................................. 47
Figure 29 Insert the piston seal into the tool ................................................... 47
Figure 30 Inserting the piston seal into the pump head ................................... 48
Figure 31 Removing valves .............................................................................. 49
Figure 32 Dismantling valve ............................................................................ 50
Figure 33 Components of the inlet valve and outlet valve ................................ 51
Figure 34 Changing the filter .......................................................................... 53

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 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 Module IC Module allows to extend an 850 Profes-
sional IC instrument by another IC Module complete with high pressure
pump, purge valve, inline filter, pulsation damper and injection valve.
The 872 Extension Module IC Module can be used wherever an addi-
tional IC Module is necessary.
With the 872 Extension Module IC Module, a one-channel low pressure
gradient instrument can this way be extended to a two-channel AnCat
instrument with low pressure gradient. All instruments with sample prepa-
ration can be extended to two-channel systems as well.
In a system with photometric detection with a 886 Professional Thermo-
stat/Reactor as column holder and thermostat and an 887 Professional
UV/VIS Detector, it is also possible to use the 872 Extension Module IC
Module for conveying reagents.
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 Module – IC Module comprises the following com-
ponents:
Eluent degasser
The eluent degasser removes gas bubbles and dissolved gases from the
eluent. For degassing, the eluent flows into a vacuum chamber through a
special fluoropolymer capillary.
High pressure pump
The intelligent and low pulsation high pressure pump pumps the eluent
through the system. It is equipped with a chip on which its technical spec-
ifications and "life history" (operating hours, service data, ... ) are saved.

1.2 Intended use ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
Inline filter
Inline filters protect the separation column securely against possible con-
tamination from the eluent. Inline filters can however also just as well be
used for the purpose of protecting other sensitive components against
contaminations in the solutions used. The fine 2 µm material of the readily
and easily replaceable filter platelets removes particles such as bacteria
and algae from the solutions.
Pulsation damper
The pulsation damper protects the separation column from damage
caused by pressure fluctuations when switching the injection valve, and
reduces interfering pulsations during highly sensitive measurements.
Injection valve
The injection valve connects the eluent and sample path through rapid
and precise valve switchover. A precisely measured amount of sample
solution is injected and rinsed with eluent onto the separation column.
1.2 Intended use
The present instrument is suitable for processing chemicals and flammable
samples. 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 – IC Module, its
assembly and connection to the IC instrument, as well as the installation,
operation and maintenance of the individual components. Technical speci-
fications, troubleshooting and information concerning scope of delivery
and optional accessories makes up the rest of the manual.
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 Introduction
872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 3
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.
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 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
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.
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).

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872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 5
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.
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.

1.4 Safety instructions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
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.

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872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 7
2 Overview of the instrument
2.1 Front
Eluent
Degasser
In
Out
Sample
Eluent
Standard
1
2
3
4
5
6
12 3 456
7
8
Figure 1 Front 872 Extension Module IC Module
1Standby indicator 2High pressure pump
See Chapter 4.6
3Coupling 6.2744.230
For connecting the eluent aspiration tubing.
4Purge valve
See Chapter 4.6
5Pulsation damper
See Chapter 4.8
6Injection valve
See Chapter 4.9
7Inline filter
See Chapter 4.7
8Eluent degasser
See Chapter 4.5

2.2 Rear ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
2.2 Rear
Vacuum Exhaust
Made by Metrohm Herisau Switzerland
Out
In
Transport locking screws
1234
5
Figure 2 Rear 872 Extension Module IC Module
1Connector In
To connect the extension module to the IC
instrument or to a previous extension mod-
ule.
2Connector Out
To connect an additional extension module.
3Connector Vacuum
For connecting further degassing chambers
in extension modules (labeled with Vac-
uum).
4Waste air opening
For extracting the air from the vacuum
chamber (labeled with Exhaust).
5Transport locking screws
For securing the high pressure pump and
the vacuum pump when transporting the
instrument.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Assembly
872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 9
3 Assembly
3.1 General
The extension modules are fitted directly to the 850 Professional IC instru-
ment and connected with it via 6.2156.060 connection cable. 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.
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.
Extension modules can be mounted in the following setup versions:
￭above, between instrument and bottle holder (3-A), or
￭below, between instrument and base tray (3-B), or
￭next to the instrument (3-C) with a separate 6.2061.110 base tray and
a 6.2061.100 bottle holder (to be ordered additionally). For this, the
longer 6.2156.070 connection cable (to be ordered additionally), is
necessary, too.

3.2 Mounting the extension module onto the IC instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
A B C
Figure 3 Setup versions
AExtension module above the IC instru-
ment
Between the 850 Professional IC and the
bottle holder.
BExtension module on the below the IC
instrument
Between the base plate and the 850 Profes-
sion IC.
CExtension module next to the IC instru-
ment
With its own base plate and its own bottle
holder next to the 850 bottle holder.
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 if possible – either
above, below or next to the IC instrument. 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 (available as optional accessory).
3.2 Mounting the extension module onto the IC instru-
ment
1Switching off the IC instrument
Switch the IC instrument off and disconnect the mains cable.
2Clearing the bottle holder
If there are bottles and other items on the bottle holder, remove
them.
3Removing drainage tubings
Loosen the drainage tubing from the drainage tubing connector on
the bottle holder.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Assembly
872 Extension Module IC Module ￭￭￭￭￭￭￭￭ 11
4Dismounting the bottle holder
1
2
1
2
Figure 4 Dismounting the bottle holder
1Cover stoppers 2Cylinder screws
￭Remove covering stoppers (4-1).
￭Loosen the cylinder screws with a 6.2621.100 3 mm hexagon
key.
￭Remove the bottle holder
5Attaching the extension module(s)
Place the extension module(s) on the IC instrument.

3.2 Mounting the extension module onto the IC instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭ 872 Extension Module IC Module
6Mounting the bottle holder
1
2
1
2
Figure 5 Mounting the bottle holder
1Cover stoppers 2Cylinder screws
￭Attach the bottle holder on the extension module.
￭Tighten the cylinder screws (4-2) with an 6.2621.100 3 mm hexa-
gon key
￭Insert covering stoppers (4-1).
7Connecting the extension module
￭Plug a 6.2156.060 cable into the connector In of the extension
module and screw it tight.
￭Plug the other end of the cable into the Extension module con-
nector of the IC instrument and screw it tight.
8Optional: Connecting a further extension module
￭Plug the cable 6.2156.060 or a longer 6.2156.070 cable (optional
accessory) into the connector In of the second extension module
and screw it tight.
￭Plug the other end of the cable into the Out connector of the first
extension module and screw it tight.