Metrohm 850 User Manual
850 Professional IC
Anion – MCS – 2.850.2030
Manual
8.850.8046EN
Metrohm AG
CH-9101 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
850 Professional IC
Anion – MCS – 2.850.2030
8.850.8046EN
Manual
06.2009 zst
Teachware
Metrohm AG
CH-9101 Herisau
teachware@metrohm.com
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.
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Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.2 Intended use ......................................................................... 5
1.3 About the documentation ................................................... 5
1.3.1 Symbols and conventions ........................................................ 5
1.4 Safety instructions ................................................................ 6
1.4.1 General notes on safety ........................................................... 6
1.4.2 Electrical safety ........................................................................ 6
1.4.3 Tubing and capillary connections ............................................. 7
1.4.4 Flammable solvents and chemicals ........................................... 8
1.4.5 Recycling and disposal ............................................................. 8
2 Installation 9
2.1 About this chapter ................................................................ 9
Table of contents
2.2 Initial installation .................................................................. 9
2.3 Flow diagram ...................................................................... 10
2.4 Setting up the instrument .................................................. 12
2.4.1 Packaging .............................................................................. 12
2.4.2 Checks .................................................................................. 12
2.4.3 Location ................................................................................ 12
2.5 Capillary connections in the IC system ............................. 13
2.6 Rear of the instrument ....................................................... 15
2.6.1 Rollers and handle ................................................................. 15
2.6.2 Positioning and connecting the detector ................................ 18
2.6.3 Transport locking screws ....................................................... 20
2.6.4 Leak sensor ........................................................................... 20
2.6.5 Drainage tubing ..................................................................... 21
2.7 Capillary and cable feed-throughs .................................... 23
2.8 Eluent ................................................................................... 26
2.8.1 Connecting eluent bottle ....................................................... 26
2.9 Eluent degasser ................................................................. 30
2.10 High pressure pump ........................................................... 31
2.10.1 Capillary connections high pressure pump/purge valve ........... 31
2.10.2 Deaerating the high pressure pump ....................................... 34
850 Professional IC – Anion – MCS
2.11 Inline filter ........................................................................... 36
2.12 Pulsation damper ............................................................... 37
2.13 Sample degasser ................................................................. 39
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III
Table of contents
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2.14 Injection valve ..................................................................... 40
2.14.1 Connecting the injection valve ............................................... 40
2.14.2 Mode of operation of the injection valve ............................... 41
2.14.3 Selecting the sample loop ...................................................... 42
2.15 Column thermostat ............................................................ 43
2.16 Metrohm Suppressor Module (MSM) ............................... 46
2.16.1 General information on the MSM .......................................... 46
2.16.2 Connecting the MSM ............................................................ 46
2.17 Peristaltic pump .................................................................. 49
2.17.1 Principle of the peristaltic pump ............................................. 49
2.17.2 Installing the peristaltic pump ................................................ 50
2.18 Metrohm CO2 suppressor (MCS) ....................................... 54
2.18.1 General information on the MCS ........................................... 54
2.18.2 Connecting MCS ................................................................... 54
2.18.3 Installing the adsorption cartridges ........................................ 55
2.19 Conductivity detector ......................................................... 57
2.20 Connecting the instrument ................................................ 60
2.20.1 Connecting the instrument to the PC ..................................... 60
2.20.2 Connecting the instrument to mains supply ........................... 60
2.21 Guard column ..................................................................... 61
2.22 Separation column ............................................................. 63
3 Start-up 65
3.1 Initial start-up ..................................................................... 65
3.2 Conditioning ........................................................................ 66
4 Operation and maintenance 68
4.1 General information ........................................................... 68
4.1.1 Care ...................................................................................... 68
4.1.2 Maintenance by Metrohm Service .......................................... 68
4.1.3 Operation .............................................................................. 69
4.1.4 Shutting down ...................................................................... 69
4.2 Capillary connections ......................................................... 69
4.2.1 Operation .............................................................................. 69
4.3 Door ..................................................................................... 70
4.4 Eluent ................................................................................... 70
4.4.1 Production ............................................................................. 70
4.4.2 Operation .............................................................................. 71
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IV
4.5 High pressure pump ........................................................... 71
4.5.1 Protection .............................................................................. 71
4.5.2 Maintenance ......................................................................... 72
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Table of contents
4.6 Inline filter ........................................................................... 82
4.6.1 Maintenance ......................................................................... 82
4.7 Inline sample preparation .................................................. 84
4.8 Rinsing the sample path .................................................... 84
4.9 Sample degasser ................................................................. 86
4.9.1 Operation .............................................................................. 86
4.10 Injection valve .................................................................... 86
4.10.1 Protection .............................................................................. 86
4.11 Metrohm Suppressor Module (MSM) ............................... 86
4.11.1 Protection .............................................................................. 86
4.11.2 Operation .............................................................................. 86
4.11.3 Maintenance ......................................................................... 87
4.12 Peristaltic pump .................................................................. 92
4.12.1 Operation .............................................................................. 92
4.12.2 Maintenance ......................................................................... 93
4.13 Metrohm CO2 suppressor (MCS) ....................................... 95
4.13.1 Replacing the CO2 adsorption cartridge ................................. 95
4.13.2 Regenerating the H2O adsorption cartridge ............................ 95
4.14 Conductivity detector ......................................................... 96
4.14.1 Maintenance ......................................................................... 96
4.15 Separation column ............................................................. 96
4.15.1 Separating efficiency .............................................................. 96
4.15.2 Protection .............................................................................. 97
4.15.3 Storage ................................................................................. 97
4.15.4 Regeneration ......................................................................... 97
4.16 Quality Management and validation with Metrohm ....... 98
5 Troubleshooting 99
5.1 Problems and their solutions ............................................. 99
6 Technical specifications 104
6.1 Reference conditions ........................................................ 104
6.2 Instrument ......................................................................... 104
6.3 Leak sensor ....................................................................... 104
6.4 Ambient conditions .......................................................... 104
6.5 Housing ............................................................................. 105
6.6 Eluent degasser ................................................................ 105
850 Professional IC – Anion – MCS
6.7 High pressure pump ......................................................... 105
6.8 Sample degasser ............................................................... 106
6.9 Injection valve ................................................................... 106
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V
Table of contents
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6.10 Column thermostat .......................................................... 107
6.11 Metrohm Suppressor Module (MSM) ............................. 107
6.12 Peristaltic pump ................................................................ 107
6.13 Metrohm CO2 suppressor (MCS) ..................................... 108
6.14 Conductivity measuring system ...................................... 108
6.15 Mains connection ............................................................. 109
6.16 Interfaces .......................................................................... 109
6.17 Safety specification .......................................................... 110
6.18 Electromagnetic compatibility (EMC) ............................. 110
6.19 Weight ............................................................................... 110
7 Conformity and warranty 111
7.1 Declaration of Conformity ............................................... 111
7.2 Quality Management Principles ...................................... 112
7.3 Warranty (guarantee) ....................................................... 113
8 Accessories 115
8.1 Scope of delivery .............................................................. 115
8.2 Optional accessories ........................................................ 126
Index 130
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VI
850 Professional IC – Anion – MCS
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Table of figures
Figure 1 Front view of the instrument ............................................................. 2
Figure 2 Flow diagram with sequential suppression ....................................... 11
Figure 3 Connection of capillaries with pressure screws ................................ 13
Figure 4 Rollers and handle ........................................................................... 15
Figure 5 Handle as MPak holder .................................................................... 17
Figure 6 Removable rear panel ...................................................................... 18
Figure 7 Connection for the leak sensor on the rear of the instrument .......... 21
Figure 8 Drainage tubing .............................................................................. 22
Figure 9 Capillary feed-throughs on the doors ............................................... 24
Figure 10 Capillary feed-throughs base tray/covering plate .............................. 25
Figure 11 Installing eluent bottle attachment .................................................. 27
Figure 12 Mounting aspiration filter ................................................................ 27
Figure 13 Installing tubing weighting and aspiration filter ............................... 28
Figure 14 Eluent aspiration tubing fully equipped. ........................................... 28
Figure 15 Eluent bottle – connected ............................................................... 29
Figure 16 Eluent degasser ............................................................................... 30
Figure 17 Capillary connections high pressure pump/purge valve .................... 32
Figure 18 High pressure pump – Connect inlet ................................................ 33
Figure 19 Deaerating the high pressure pump ................................................. 35
Figure 20 Connecting inline filter .................................................................... 37
Figure 21 Pulsation damper – Connection ....................................................... 38
Figure 22 Sample degasser ............................................................................. 39
Figure 23 Injection valve – connected ............................................................. 40
Figure 24 Injection valve – Positions ................................................................ 42
Figure 25 Column thermostat ......................................................................... 44
Figure 26 MSM – connections ........................................................................ 47
Figure 27 Peristaltic pump ............................................................................... 49
Figure 28 Installing the pump tubing .............................................................. 50
Figure 29 Install pump tubing connection with filter ....................................... 51
Figure 30 Install pump tubing connection without filter .................................. 52
Figure 31 MCS – connection ........................................................................... 54
Figure 32 Adsorption cartridge holder ............................................................. 56
Figure 33 Conductivity detector front .............................................................. 58
Figure 34 Conductivity detector rear ............................................................... 59
Figure 35 Connection detector – MCS ............................................................ 60
Figure 36 Removing piston ............................................................................. 73
Figure 37 Components of the piston cartridge ................................................ 74
Figure 38 Tool for piston seal 6.2617.010 ....................................................... 75
Figure 39 Removing the piston seal ................................................................. 76
Figure 40 Insert the piston seal into the tool ................................................... 76
Figure 41 Inserting the piston seal into the pump head ................................... 77
Figure 42 Removing valves .............................................................................. 78
Figure 43 Dismantling valve ............................................................................ 79
Figure 44 Components of the inlet valve and outlet valve ................................ 80
Figure 45 Changing the filter .......................................................................... 82
Table of figures
850 Professional IC – Anion – MCS
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VII
Table of figures
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Figure 46 MSM – Components ....................................................................... 89
Figure 47 Pump tubing connection – Changing the filter ................................. 94
VIII
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850 Professional IC – Anion – MCS
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1 Introduction
1.1 Instrument description
The instrument 850 Professional IC – Anion – MCS (2.850.2030) is
one of the model versions of the Professional IC line of instruments manufactured by the Metrohm Company. The Professional IC line of instruments is distinguished by
￭ the intelligence of its components, which are able to monitor and
optimize all functions and to provide documentation according to FDA
requirements.
￭ its compactness.
￭ its flexibility. A suitable model version exists for every application.
Individual instruments can be converted, expanded or modified to create a different instrument as needed.
￭ its transparency. All components are easily accessible and arranged in
a clear manner.
￭ its safety. Chemicals and electronics are separated and a leak sensor is
integrated in the wet end.
￭ its environmental compatibility.
￭ low noise emission.
1 Introduction
The instrument is operated with MagIC Net software. It is connected via
a USB connection to a PC on which MagIC Net is installed. The software
automatically recognizes the instrument and checks its functional readiness. MagIC Net controls and monitors the instrument, evaluates the
measured data and administers it in a database. The operation of
MagIC Net is described in the online help or in the tutorial for MagIC Net.
850 Professional IC – Anion – MCS
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1
1.1 Instrument description
12
2
1
8
10
4
9
5
6
7
11
3
13
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Figure 1 Front view of the instrument
Eluent bottle
1
See Chapter 2.8.1.
Conductivity detector
2
See Chapter 2.19.
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2
850 Professional IC – Anion – MCS
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1 Introduction
MCS
3
See Chapter 2.18.
MSM
5
See Chapter 2.16.
Eluent degasser
7
See Chapter 2.9.
Purge valve
9
See Chapter 2.10.1.
Sample degasser
11
See Chapter 2.13. Use optional.
Column thermostat
13
See Chapter 2.15.
Peristaltic pump
4
See Chapter 2.17.
Injection valve
6
See Chapter 2.14.
High pressure pump
8
See Chapter 2.10.
Pulsation damper
10
See Chapter 2.12.
Separation column
12
See Chapter 2.22.
The instrument contains the following components:
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 specifications and "life history" (operating hours, service data, ... ) are saved.
Inline filter
Inline filters protect the separation column securely against possible contamination 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.
Sample degasser
The sample degasser removes gas bubbles and disolved gases from the
sample. For degassing, the sample flows into a vacuum chamber through
a special fluoropolymer capillary.
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1.1 Instrument description
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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.
Column thermostat
The column thermostat controls the temperature of the column and eluent channel and thus ensures stable measuring conditions. It provides
space for 2 separation columns.
Metrohm Suppressor Module (MSM)
The MSM is used for chemical suppression during anion analysis. It is pressure-stable, robust and resistant to solvents.
Peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
Metrohm CO2 suppressor (MCS)
The MCS removes the CO2 from the eluent flow. This reduces the background conductivity, improves the detection sensitivity and minimizes the
injection and carbonate peaks.
Conductivity detector
The conductivity detector continuously measures the conductivity of the
liquid passing through and indicates these signals in digital form (DSP –
Digital Signal Processing). The conductivity detector exhibits outstanding
thermal stability and thus guarantees reproducible measuring conditions.
Separation column
The intelligent separation column is the heart of the ion chromatographic
analysis. It separates the different components corresponding to their
interactions with the column. The Metrohm analytical columns are equipped with a chip on which their technical specifications and their history
(first use / setting up, operating hours, injections, ... ) are saved.
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850 Professional IC – Anion – MCS
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1.2 Intended use
The instrument 850 Professional IC – Anion – MCS is used for ion
chromatographic determination of anions or polar substances with
sequential suppression:
￭ Chemical suppression with the Metrohm Suppressor Module (MSM)
(see Chapter 2.16, page 46) and subsequent
￭ CO
2
ter 2.18, page 54).
The use of sequential suppression reduces background conductivity to a
minimum.
If required, the instrument can also be used for the determination of cations or anions without suppression.
The present instrument is suitable for processing chemicals and flammable
samples. The usage of the 850 Professional IC – Anion – MCS 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 Introduction
suppression with the Metrohm CO2 Suppressor (MCS) (see Chap-
1.3 About the documentation
Caution
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which have to be followed by the user in order to ensure
safe operation of the instrument.
1.3.1 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.
850 Professional IC – Anion – MCS
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5
1.4 Safety instructions
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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.
1.4 Safety instructions
1.4.1 General notes on safety
Warning
This instrument may only be operated in accordance with the specifications 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.
Note
This symbol marks additional information and tips.
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6
Warning
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
850 Professional IC – Anion – MCS
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1 Introduction
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 mandatory.
850 Professional IC – Anion – MCS
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7
1.4 Safety instructions
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.
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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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8
850 Professional IC – Anion – MCS
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2 Installation
2.1 About this chapter
The Installation chapter contains
￭ a list of all the steps to be carried out during the initial installation (see
Chapter 2.2, page 9).
￭ a schematic overview of the flow paths (see Chapter 2.3, page 10).
￭ a description of the construction, connections and functionality of the
instrument.
￭ step-by-step installation instructions. A part of these installation tasks
has already been carried out before delivery. They are nevertheless
described here in case they need to be carried out once again some
time in the future (e.g. after maintenance of the high pressure pump).
2 Installation
2.2 Initial installation
Note
A large number of the capillary connections are already connected at
the time the instrument is delivered.
The following steps still have to be carried out after delivery:
Setting up the instrument (see Chapter 2.4, page 12).
1
Remove handle and rollers (see Chapter 2.6.1, page 15).
2
Place the detectors in the instrument and connect them (see Chapter
3
2.6.2, page 18).
Remove transport locking screws (see Chapter 2.6.3, page 20).
4
Connect the leak sensor (see Chapter 2.6.4, page 20).
5
Connect drainage tubings (see Chapter 2.6.5, page 21).
6
Connect the eluent bottle (see Chapter 2.8.1, page 26).
7
850 Professional IC – Anion – MCS
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9
2.3 Flow diagram
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Install sample path connections.
8
￭ Connect the sample degasser (if required) (see Chapter 2.13,
page 39).
￭ Connect sample path connections to the injection valve (see
Chapter 2.14.2, page 41).
Installing the MSM (see Chapter 2.16, page 46) – with associated
9
peristaltic pump (see Chapter 2.17, page 49).
Connect the MCS (see Chapter 2.18.2, page 54).
10
Connect detector capillaries (see Chapter 2.19, page 57).
11
Mains connection (see Chapter 2.20, page 60).
12
Connect the instrument to the PC (see Chapter 2.20.1, page 60).
13
Initial start-up (see Chapter 3.1, page 65).
14
Install the guard column (if used) (see Chapter 2.21, page 61).
15
Install the separation column (see Chapter 2.22, page 63).
16
2.3 Flow diagram
Figure 2 Flow diagram with sequential suppression shows the flow paths
with the application of sequential suppression (MSM (2-9) and MCS
(2-10)). The arrangement of the modules in the diagram corresponds to
the front view of the instrument. Liquid containers (eluent bottle, sample
vessel, waste container, auxiliary solutions container) and guard column
(see Chapter 2.21, page 61) are not shown in the diagram. Which pressure screws, connections and couplings are used, is described in the installation chapters of the individual modules.
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850 Professional IC – Anion – MCS
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11
3
2
5
6
7
14
8
1
13
15
12
16
9
17
19
18
20
10
4
Eluent
Sample
Regeneration solution
Rinsing solution
Sample optional
2 Installation
Figure 2 Flow diagram with sequential suppression
850 Professional IC – Anion – MCS
Eluent input
1
Connection to the eluent bottle (see Chapter 2.8.1, page 26).
Eluent degasser
2
See Chapter 2.9.
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11
2.4 Setting up the instrument
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High pressure pump
3
See Chapter 2.10.
Inline filter
5
See Chapter 2.11.
Injection valve
7
See Chapter 2.14.
MSM
9
See Chapter 2.16.
Detector
11
See Chapter 2.19.
Sample input
13
Connection to the sample vessel (single vessel or sample changer).
Sample output
15
Purge valve
4
See Chapter 2.10.1.
Pulsation damper
6
See Chapter 2.12.
Separation column
8
See Chapter 2.22.
When a guard column (see Chapter 2.21,
page 61) is used, it is installed between
injection valve and separation column.
MCS
10
See Chapter 2.18.
Eluent output
12
Connection to the waste container.
Sample degasser
14
See Chapter 2.13. Use optional.
Peristaltic pump
16
See Chapter 2.17.
Regeneration solution input
17
Connection to the regeneration solution
bottle.
Rinsing solution input
19
Connection to the rinsing solution bottle.
18
20
2.4 Setting up the instrument
2.4.1 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.
2.4.2 Checks
Immediately after receipt, check whether the shipment has arrived complete and without damage by comparing it with the delivery note.
2.4.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
Regeneration solution output
Connection to the waste container.
Rinsing solution output
Connection to the waste container.
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12
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.
850 Professional IC – Anion – MCS
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4
1
2 3
The instrument should be protected against excessive temperature fluctuations and direct sunlight.
2.5 Capillary connections in the IC system
This chapter contains general information concerning the capillary connections in the IC instruments.
Generally speaking, capillary connections between two components of an
IC instrument are made up of one connection capillary and two pressure
screws with which the capillary is connected to the respective components.
2 Installation
Figure 3
PEEK pressure screw 6.2744.014
1
Use on the injection valve.
PEEK pressure screw, short 6.2744.070
3
For use on the high pressure pump, the
purge valve, the inline filter, the pulsation
damper, the guard column and the separation column.
In order to keep the dead volume as low as possible, capillary connections should generally be as short as possible.
For an improved overview, capillary and tubing connections can be
bundled with the 6.1815.010 spiral band.
Connection of capillaries with pressure screws
Connection capillary
2
PEEK pressure screw, long 6.2744.090
4
Usage on other components. Is not used on
all instruments.
Note
Note
850 Professional IC – Anion – MCS
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13
2.5 Capillary connections in the IC system
Connection capillary
PEEK capillaries and PTFE capillaries are used in the IC system.
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PEEK capillaries (polyetheretherketone)
PTFE capillaries (polytetrafluoroethylene)
PEEK capillaries are temperature-resistant up to 100°C, stable under pressure up to 400 bar, flexible, chemically inert and exhibit an extremely
smooth surface. They can be readily cut down to the desired length with
the capillary cutter.
Usage:
￭ 6.1831.010 PEEK capillary (internal diameter of 0.25 mm) for the entire
high pressure range.
￭ 6.1831.030 PEEK capillary (internal diameter of 0.75 mm) for sample
handling in the ultra trace range.
Caution
For the capillary connections between the injection valve (see Chapter
2.14, page 40) and detector (see Chapter 2.19, page 57), PEEK
capillaries with an internal diameter of 0.25 mm must be used. These
are already connected to a newly delivered instrument.
PTFE capillaries are transparent and enable visual tracing of the liquids to
be pumped. They are chemically inert, flexible and temperature-resistant
up to 80°C.
Usage:
PTFE capillaries (6.1803.0x0) are used for the low pressure range.
￭ PTFE capillaries with internal diameter of 0.5 mm for sample handling.
￭ PTFE capillaries with internal diameter of 0.97 mm for the sample han-
dling as for rinsing and regeneration solutions (they do not have to be
in the scope of delivery of the instrument).
Note
Capillaries must have a flawless level cut edge. For cutting PEEK capillaries only use the 6.2621.080 capillary cutter.
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14
850 Professional IC – Anion – MCS
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3
2
1
1
4
5
2.6 Rear of the instrument
2.6.1 Rollers and handle
In order to make transport easier, the instrument is equipped with rollers
and a handle.
2 Installation
Figure 4 Rollers and handle
Knurled screws
1
For fastening the handle (4-2) and the rear
panel of the detector chamber.
Knurled screws
3
For fastening the roller holder (4-5).
Roller holder
5
2
4
Handle
Rollers
Removing handle
850 Professional IC – Anion – MCS
Loosen knurled screws (4-1) and remove handle (4-2).
1
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15
2.6 Rear of the instrument
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Removing rollers
Proceed as follows to remove the rollers:
Remove knurled screws (4-3).
1
Remove roller holder (4-5).
2
Mounting handle as MPak holder
Note
When extended, the handle (5-2) can also be used for hanging up
MPaks (eluent bags).
Move handle (5-2) upwards and screw in the knurled screws (5-1)
1
again.
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850 Professional IC – Anion – MCS
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2
1
1
2 Installation
Figure 5 Handle as MPak holder
Knurled screws
1
For fastening the handle (5-2) and the rear
panel of the detector chamber.
Handle
2
Extended. As holder for MPaks (eluent bag).
850 Professional IC – Anion – MCS
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2.6 Rear of the instrument
Detector 1
Detector 2
4
4
4
4
3
3
2
1
1
1
1
1
1
5
5
2.6.2 Positioning and connecting the detector
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Knurled screws
1
Figure 6 Removable rear panel
For fastening the removable rear panel.
Cable feed-throughs
3
Rear panel
2
Removable
Capillary feed-throughs
4
For feeding through detector cables.
Detector connection sockets
5
Labeled with Detector 1 and Detector 2 for
connecting Metrohm detectors.
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850 Professional IC – Anion – MCS
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Note
Up to two detectors can be positioned and connected.
Caution
The instrument must be turned off when connecting a detector.
1
Removing rear panel
￭ Unscrew knurled screws (6-1) on the rear panel.
￭ Remove handle if still fastened to the instrument.
￭ Remove rear panel (6-2).
2
Positioning the detector
￭ Put the detector through this opening and position it on the sup-
port surface intended for this purpose. Slide it right up to the
front.
3
Replacing rear panel
￭ Insert the detector cable in a cable feed-through (6-3) on the rear
panel (6-2).
￭ Place the detector output capillary in a suitable capillary feed-
through.
￭ Replace (6-2) rear panel.
(Optionally, the handle can be remounted higher up and used as
a holder for MPaks.)
￭ Tighten (6-1) knurled screws.
4
Connecting the detector
2 Installation
850 Professional IC – Anion – MCS
Note
The instrument has two detector connection sockets (6-5), Detector 1 and Detector 2. You must ensure that the selected connec-
tor corresponds to the connector entered in the MagIC Net
method.
Recommendation: Use Detector 1 as standard. In the AnCat sys-
tem with 2 detectors: Detector 1 for anions, Detector 2 for cations.
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19
2.6 Rear of the instrument
￭ Connect the detector cable to the detector connection socket
Detector 1 (6-5).
5
Conntecting detector output
Note
The detector output capillary must be free of blockages (the measuring cell is tested to 5 MPa = 50 bar backpressure).
Guide the detector output capillary into a sufficiently large waste
container and fasten it there.
2.6.3 Transport locking screws
To avoid damage to the high pressure pump and vacuum pump during
transport, the pumps are secured with transport locking screws .
Remove these transport locking screws before the initial start-up.
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Removing transport locking screws
In order to avoid damage to the pumps, the transport locking screws
must be remounted each time the instrument undergoes major transport.
2.6.4 Leak sensor
The leak sensor detects escaping liquid which collects in the base tray of
the instrument.
To activate the leak sensor, the leak sensor connector plug (7-2) must be
connected, the instrument switched on and the leak sensor switched to
active in the software.
Connecting the leak sensor
Remove and keep transport locking screws.
1
Warning
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20
Plug the leak sensor connector plug (7-2) into the leak sensor con-
1
nector socket (7-1) on the rear of the instrument (see Figure 7, page
21).
850 Professional IC – Anion – MCS
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