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Metrohm 881 User Manual

881 Compact IC pro
881 Compact IC pro – Anion – MCS
Manual
8.881.8014EN
Metrohm AG CH-9100 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com
881 Compact IC pro
881 Compact IC pro – Anion – MCS
2.881.0030
8.881.8014EN
Manual
05.2011 zst
Teachware Metrohm AG CH-9100 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.
Documentation in additional languages can be found on
http://products.metrohm.com under Literature/Technical documenta-
tion.
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Table of contents

1 Introduction 1
1.1 Instrument description ......................................................... 1
1.2 Intended use ......................................................................... 3
1.3 About the documentation ................................................... 3
1.3.1 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 ............................................................. 6
2 Overview of the instrument 7
2.1 Front ...................................................................................... 7
Table of contents
2.2 Rear ........................................................................................ 8
3 Installation 10
3.1 About this chapter .............................................................. 10
3.2 Initial installation ................................................................ 10
3.3 Installation diagram ........................................................... 14
3.4 Setting up the instrument .................................................. 17
3.4.1 Packaging .............................................................................. 17
3.4.2 Checks .................................................................................. 17
3.4.3 Location ................................................................................ 17
3.5 Capillary connections in the IC system ............................. 17
3.6 Rear of the instrument ....................................................... 20
3.6.1 Transport locking screws ....................................................... 20
3.6.2 Leak sensor ........................................................................... 20
3.6.3 Drainage tubings ................................................................... 21
3.7 Capillary and cable feed-throughs .................................... 23
3.8 Eluent ................................................................................... 25
3.8.1 Connecting eluent bottle ....................................................... 25
3.9 Eluent degasser ................................................................. 29
881 Compact IC pro – Anion – MCS
3.10 High pressure pump ........................................................... 31
3.10.1 Capillary connections high pressure pump/purge valve ........... 31
3.10.2 Deaerating the high pressure pump ....................................... 33
3.11 Inline filter ........................................................................... 35
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III
Table of contents
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3.12 Pulsation absorber ............................................................. 36
3.13 Sample degasser ................................................................. 37
3.14 Injection valve ..................................................................... 39
3.14.1 Connecting the injection valve ............................................... 39
3.14.2 Mode of operation of the injection valve ............................... 40
3.14.3 Selecting the sample loop ...................................................... 41
3.15 Column heater .................................................................... 41
3.16 Peristaltic pump .................................................................. 45
3.16.1 Principle of the peristaltic pump ............................................. 45
3.16.2 Installing the peristaltic pump ................................................ 47
3.17 Metrohm Suppressor Module (MSM) ............................... 51
3.17.1 Connecting the suppressor .................................................... 51
3.18 Metrohm CO2 Suppressor (MCS) ....................................... 54
3.18.1 General information on the MCS ........................................... 54
3.18.2 Connecting MCS ................................................................... 54
3.18.3 Installing the adsorption cartridges ........................................ 56
3.19 Connecting the instrument ................................................ 58
3.19.1 Connecting the instrument to the PC ..................................... 58
3.19.2 Connecting the instrument to mains supply ........................... 58
3.20 Guard column ..................................................................... 59
3.21 Separation column ............................................................. 60
4 Start-up 63
4.1 Initial start-up ..................................................................... 63
4.2 Conditioning ........................................................................ 64
5 Operation and maintenance 66
5.1 General notes ...................................................................... 66
5.1.1 Care ...................................................................................... 66
5.1.2 Maintenance by Metrohm Service .......................................... 66
5.1.3 Operation .............................................................................. 67
5.1.4 Shutting down ...................................................................... 67
5.2 Capillary connections ......................................................... 67
5.2.1 Operation .............................................................................. 67
5.3 Door ..................................................................................... 68
5.4 Eluent ................................................................................... 68
5.4.1 Production ............................................................................. 68
5.4.2 Operation .............................................................................. 69
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IV
5.5 High pressure pump ........................................................... 69
5.5.1 Protection .............................................................................. 69
5.5.2 Maintenance ......................................................................... 70
881 Compact IC pro – Anion – MCS
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Table of contents
5.6 Inline filter ........................................................................... 80
5.6.1 Maintenance ......................................................................... 80
5.7 Sample degasser ................................................................. 82
5.7.1 Operation .............................................................................. 82
5.8 Inline sample preparation .................................................. 82
5.9 Rinsing the sample path .................................................... 83
5.10 Injection valve .................................................................... 84
5.10.1 Protection .............................................................................. 84
5.11 Peristaltic pump .................................................................. 84
5.11.1 Operation .............................................................................. 84
5.11.2 Maintenance ......................................................................... 85
5.12 Metrohm Suppressor Module (MSM) ............................... 87
5.12.1 Protection .............................................................................. 87
5.12.2 Operation Suppressor ........................................................... 87
5.12.3 Maintenance ......................................................................... 88
5.13 Metrohm CO2 Suppressor (MCS) ....................................... 93
5.13.1 Replacing the CO2 adsorption cartridge ................................. 93
5.13.2 Regenerating the H2O adsorption cartridge ............................ 93
5.14 Separation column ............................................................. 94
5.14.1 Separating efficiency .............................................................. 94
5.14.2 Protection .............................................................................. 94
5.14.3 Storage ................................................................................. 95
5.14.4 Regeneration ......................................................................... 95
5.15 Quality Management and validation with Metrohm ....... 95
6 Troubleshooting 97
6.1 Problems and their solutions ............................................. 97
7 Technical specifications 101
7.1 Reference conditions ........................................................ 101
7.2 Instrument ......................................................................... 101
7.3 Leak sensor ....................................................................... 101
7.4 Ambient conditions .......................................................... 101
7.5 Housing ............................................................................. 102
7.6 Eluent degasser ................................................................ 102
7.7 High pressure pump ......................................................... 102
881 Compact IC pro – Anion – MCS
7.8 Sample degasser ............................................................... 103
7.9 Injection valve ................................................................... 103
7.10 Column heater .................................................................. 104
7.11 Peristaltic pump ................................................................ 104
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V
Table of contents
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7.12 Metrohm Suppressor Module (MSM) ............................. 104
7.13 Metrohm CO2 Suppressor (MCS) ..................................... 105
7.14 Mains connection ............................................................. 105
7.15 Interfaces .......................................................................... 105
7.16 Safety specification .......................................................... 106
7.17 Electromagnetic compatibility (EMC) ............................. 106
7.18 Weight ............................................................................... 107
8 Conformity and warranty 108
8.1 Declaration of Conformity ............................................... 108
8.2 Quality Management Principles ...................................... 109
8.3 Warranty (guarantee) ....................................................... 110
9 Accessories 112
9.1 Scope of delivery .............................................................. 112
9.2 Optional accessories ........................................................ 122
Index 125
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VI
881 Compact IC pro – Anion – MCS
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Table of figures

Figure 1 Front 881 Compact IC pro – Anion – MCS ......................................... 7
Figure 2 Rear 881 Compact IC pro – Anion – MCS .......................................... 8
Figure 3 Installation diagram 881 Compact IC pro – Anion – MCS ................. 15
Figure 4 Connection of capillaries with pressure screws ................................ 18
Figure 5 Connection for the leak sensor on the rear of the instrument .......... 21
Figure 6 Drainage tubings ............................................................................. 22
Figure 7 Capillary and cable feed-throughs ................................................... 24
Figure 8 Installing eluent bottle attachment .................................................. 26
Figure 9 Mounting aspiration filter ................................................................ 26
Figure 10 Install tubing weighting and aspiration filter .................................... 27
Figure 11 Eluent aspiration tubing fully equipped. ........................................... 27
Figure 12 Eluent bottle – connected ............................................................... 28
Figure 13 Eluent degasser ............................................................................... 30
Figure 14 Capillary connections high pressure pump/purge valve .................... 31
Figure 15 High pressure pump – Connect inlet ................................................ 32
Figure 16 Deaerate the high pressure pump .................................................... 34
Figure 17 Connecting the inline filter .............................................................. 36
Figure 18 Pulsation absorber – Connection ..................................................... 37
Figure 19 Sample degasser ............................................................................. 38
Figure 20 Injection valve – connected ............................................................. 39
Figure 21 Injection valve – Positions ................................................................ 40
Figure 22 Column heater ................................................................................ 42
Figure 23 Column heater – Installing capillaries ............................................... 44
Figure 24 Peristaltic pump ............................................................................... 46
Figure 25 Installing the pump tubing .............................................................. 47
Figure 26 Install pump tubing connection with filter ....................................... 48
Figure 27 Install pump tubing connection without filter .................................. 49
Figure 28 Suppressor – connection capillaries ................................................. 52
Figure 29 MCS – connection ........................................................................... 55
Figure 30 Adsorption cartridge holder ............................................................. 56
Figure 31 Pump head – removing the piston ................................................... 71
Figure 32 Components of the piston cartridge ................................................ 72
Figure 33 Tool for piston seal .......................................................................... 73
Figure 34 Removing the piston seal ................................................................. 74
Figure 35 Inserting the piston seal into the tool ............................................... 74
Figure 36 Inserting the piston seal into the pump head ................................... 75
Figure 37 Removing valves .............................................................................. 76
Figure 38 Dismantling valve ............................................................................ 77
Figure 39 Components of the inlet valve and outlet valve ................................ 78
Figure 40 Change filters (of the inline filter) ..................................................... 80
Figure 41 Pump tubing connection – Changing the filter ................................. 86
Figure 42 Parts of the suppressor .................................................................... 88
Table of figures
881 Compact IC pro – Anion – MCS
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VII
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1 Introduction

1.1 Instrument description

The instrument 881 Compact IC pro – Anion – MCS is one of the model versions of the 881 Compact IC pro line of instruments manufac­tured by the Metrohm Company. The 881 Compact IC pro 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 compact style of construction. ￭ 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. ￭ its 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™.
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 filter platelets with a pore size
881 Compact IC pro – Anion – MCS
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1
1.1 Instrument description
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of 2 µm can be replaced quickly and easily. They remove particles like e. g. bacteria and algae from the solutions.
Pulsation absorber
The pulsation absorber 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 dissolved gases from the sample. For degassing, the sample flows into a vacuum chamber through a special fluoropolymer capillary.
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 heater
The perfect isolation of the column chamber ensures thermally stable con­ditions for the separation column. The temperature of the column heater can be set in the software.
Peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It can rotate in both directions.
Metrohm Suppressor Module (MSM)
The MSM is used for chemical suppression in anion analysis with conduc­tivity detection or UV detection.It is pressure-stable, robust and resistant to solvents.
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.
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. Metrohm separation 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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881 Compact IC pro – Anion – MCS
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1.2 Intended use

The instrument 881 Compact IC pro – Anion – MCS is used for ion chromatographic determination of anions or polar substances with sequential suppression:
￭ Chemical suppression with the Metrohm Suppressor Module (MSM)
and subsequent
￭ CO
2
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.
This instrument is suitable for processing chemicals and flammable sam­ples. The usage of the 881 Compact IC pro – 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).

1.3 About the documentation

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.
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
881 Compact IC pro – Anion – MCS
This symbol draws attention to a possible hazard due to heat or hot instrument parts.
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3

1.4 Safety instructions

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.
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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.
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.
Only personnel qualified by Metrohm are authorized to carry out service work on electronic components.
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.
Warning
Warning
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4
881 Compact IC pro – Anion – MCS
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1 Introduction
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.

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.
881 Compact IC pro – Anion – MCS
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5
1.4 Safety instructions

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.
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6
881 Compact IC pro – Anion – MCS
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1
12
10
2
3
4
7
5 6
8
13
11
9
2 Overview of the instrument

2.1 Front

2 Overview of the instrument

Figure 1 Front 881 Compact IC pro – Anion – MCS
Detector chamber
1
Room for the detector and the adsorption cartridges for the MCS.
High pressure pump
3
Inline filter
5
Injection valve
7
Column holder
9
With column recognition.
Metrohm Suppressor Module (MSM)
11
Sample degasser
13
881 Compact IC pro – Anion – MCS
Eluent degasser
2
Purge valve
4
Pulsation absorber
6
Column heater
8
Peristaltic pump
10
Metrohm CO2 Suppressor (MCS)
12
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7

2.2 Rear

14
15
16
17
18
20
21
19
22
11
1213
1
2
4
5
3
7
8
10
9
6
2.2 Rear
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Figure 2 Rear 881 Compact IC pro – Anion – MCS
1
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8
Drainage tubing connector
For connecting the drainage tubing which leads away escaped fluids from the flask holder.
Rear panel
2
Removable. Access to the detector chamber.
881 Compact IC pro – Anion – MCS
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2 Overview of the instrument
Drainage tubing connector
3
For connecting the drainage tubing which leads away escaped fluids from the detector chamber.
Exhaust air opening
5
For extracting the air from the vacuum chamber. Labeled with Exhaust.
Service connection socket
7
For Metrohm service only.
Leak sensor connection socket
9
For connecting the leak sensor connection cable.
Drainage tubing connector
11
For connecting the drainage tubing which leads escaped fluids to the leak sensor.
Drainage tubing connector
13
For connecting the drainage tubing which leads escaped fluids to the waste vessel.
Transport locking screws
4
For securing the vacuum pump when trans­porting the instrument.
Auxiliary connection socket
6
For connecting a 891 Professional Analog out (2.891.0010).
Transport locking screws
8
For securing the high pressure pump when transporting the instrument.
Type plate
10
Leak sensor connection cable
12
Extractable. For connecting the leak sensor.
Serial number
14
Detector connection socket
15
For connecting Metrohm detectors. Labeled with Detector.
USB connectors
17
2 USB connectors labeled with USB 1 and USB 2.
Vacuum connection
19
Plugged with a stopper. Not Used.
Mains switch
21
For switching the instrument on and off.
I = On
O = Off
MSB connectors
16
2 MSB connectors for connecting MSB devi­ces. Labeled with MSB 1 and MSB 2.
MSB = Metrohm Serial Bus
PC connection socket
18
For connecting the instrument to the com­puter with the USB cable (6.2151.020).
Mains connection socket
20
For connecting the mains cable.
Knurled screws
22
For fastening the removable rear panel.
881 Compact IC pro – Anion – MCS
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9

3.1 About this chapter

3 Installation

3.1 About this chapter
The Installation chapter contains
￭ this overview. ￭ a brief set of instructions for the initial installation of the 881 Compact
IC pro – Anion – MCS. At each step you will find cross-references to more detailed installation instructions for individual components, should you require such aids.
￭ an installation diagram (see Chapter 3.3, page 14), showing a com-
pletely installed 881 Compact IC pro – Anion – MCS.
￭ several chapters with detailed installation instructions for all compo-
nents, including those that are already installed at the time the instru­ment is delivered.
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3.2 Initial installation

Note
A number of the capillaries is already connected at the time the instru­ment is delivered.
The following work steps must still be carried out:
881 Compact IC proInstalling – Anion – MCS
1
Setting up the instrument
(see Chapter 3.4, page 17).
2
Installations on the rear of the instrument
￭ Place the detector in the instrument and connect it (see manual
of the detector).
￭ Remove all of the transport locking screws with the 4 mm hexa-
gon key (6.2621.030) and keep them in a safe place.
￭ Connect the leak sensor (see Chapter 3.6.2, page 20). ￭ Connect the drainage tubings (see Chapter 3.6.3, page 21).
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10
881 Compact IC pro – Anion – MCS
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3
Connecting the eluent path
￭ Lead the eluent aspiration tubing (6.1834.080) out of the instru-
ment through a capillary feed-through and connect it with the eluent bottle (see Chapter 3.8.1, page 25).
￭ Connect the column inlet capillary (6.1831.100) and the capillary
of the MSM labeled with in to one another with a coupling (6.2744.040) and two short pressure screws (6.2744.070).
￭ Use a long pressure screw (6.2744.090) to connect the capillary
of the MSM labeled with out to the input of the of the MCS (see "Connecting the MCS", page 55).
￭ Connect the detector inlet capillary with a long pressure screw
(6.2744.090) to the output of the MCS (see "Connecting the MCS", page 55).
4
Connecting the sample path
Note
3 Installation
The sample degasser does not have to be connected. We recom­mend the usage of the sample degasser only if the sample matrix requires it (see Chapter 3.13, page 37).
￭ Guide the sample aspiration capillary connected to the sample
input of the injection valve out of the instrument through a capil­lary feed-through and connect it with the Sample Processor, if applicable (see Sample Processor manual)..
￭ Guide the sample outlet capillary connected to the sample output
of the injection valve out of the instrument through a capillary feed-through and onward to the waste container and then fasten it there.
5
Installing the peristaltic pump
(see Chapter 3.16.2, page 47)
Prepare the pump tubing for the regeneration solution:
￭ Plug a tubing olive (6.2744.034) onto one end of the pump tub-
ing (6.1826.320). Plug a pump tubing connection (6.2744.180) onto the other end of the pump tubing.
881 Compact IC pro – Anion – MCS
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11
3.2 Initial installation
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￭ Connect one end of the aspirating capillary (6.1803.020) for the
regeneration solution to the tubing olive on the pump tubing using a short pressure screw (6.2744.070). Guide the other end of the aspirating capillary out of the instru­ment through a capillary feed-through, slide it through a bottle attachment (6.1602.150) and screw the bottle attachment onto the bottle (6.1608.020) containing the regeneration solution. Ensure that the end of the aspirating capillary reaches down to the bottom of the bottle.
￭ Place the pump tubing into a tubing cartridge.
Prepare a second pump tubing for the rinsing solution:
￭ Plug a tubing olive (6.2744.034) onto one end of the pump tub-
ing (6.1826.320). Plug a pump tubing connection (6.2744.180) onto the other end of the pump tubing.
￭ Connect one end of the aspirating capillary (6.1803.020) for the
rinsing solution to the tubing olive on the pump tubing using a short pressure screw (6.2744.070). Guide the other end of the aspirating capillary out of the instru­ment through a capillary feed-through, slide it through a bottle attachment (6.1602.150) and screw the bottle attachment onto the bottle (6.1608.020) containing the rinsing solution. Ensure that the end of the aspirating capillary reaches down to the bot­tom of the bottle.
￭ Place the pump tubing into a tubing cartridge.
Place both tubing cartridges into the peristaltic pump.
6
Connecting the MSM
(see Chapter 3.17, page 51)
￭ Connect the capillary of the MSM labeled with regenerant to the
pump tubing connection of the pump tubing for the regeneration solution using a short pressure screw (6.2744.070).
￭ Connect the capillary of the MSM labeled with rinsing solution
to the pump tubing connection of the pump tubing for the rinsing solution using a short pressure screw (6.2744.070).
￭ Guide the two capillaries of the MSM labeled with waste reg.
and waste rins. out of the instrument through a capillary feed through to a waste container and fasten them there.
7
Connecting the MCS
(see Chapter 3.18, page 54)
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12
881 Compact IC pro – Anion – MCS
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3 Installation
￭ Attach the CO
adsorption cartridge (6.2837.000) to the adsorp-
2
tion cartridge holder (6.2057.080) (see "Installing the adsorption cartridges", page 57).
￭ Prepare the H
O adsorption cartridge (6.2837.010) (see leaflet to
2
the H2O adsorption cartridge) and attach it to the adsorption car­tridge holder as well (see Figure 30, page 56).
￭ Plug the adapter (6.1808.190) onto the PVC tubing and connect
the two adsorption cartridges with one another (see Figure 30, page 56).
￭ Place the adsorption cartridge (6.2057.080) holder in the detector
chamber.
￭ Connect the MCS air aspirating capillary (3-15) to the tip of the
CO2 adsorption cartridge (6.2837.000).
8
Connecting the instrument
￭ Connect the instrument to a computer (see Chapter 3.19.1, page
58) on which the software MagIC Net™ is installed using the
USB cable (6.2151.020).
￭ Connect the instrument to the mains supply (see Chapter 3.19.2,
page 58).
9
Initial start-up
(see Chapter 4.1, page 63)
￭ Switch on the PC and start MagIC Net™. ￭ Switch on the instrument. ￭ Deaerate the high pressure pump (see Chapter 3.10.2, page
33).
￭ Set contact pressure of the peristaltic pump (see "Set flow rate",
page 50).
￭ Rinse the instrument without column with eluent for 5 minutes.
10
Installing guard and separation column
￭ Remove the coupling (6.2744.040) between the column inlet
capillary and the capillary of the MSM labeled with in.
￭ (Optional) Connect guard column (see Chapter 3.20, page 59)
– Fasten the guard column to the end of the column inlet
capillary (see leaflet to the guard column).
– Rinse the guard column with eluent for approx. 5 minutes.
881 Compact IC pro – Anion – MCS
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13

3.3 Installation diagram

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
￭ Connect the separation column (see Chapter 3.21, page 60)
– Connect the inlet oft the separation column either with the
end of the column input capillary using a PEEK pressures screw (6.2744.070). or Connect the inlet of the separation column with the guard column (if used) (see leaflet to the separation column)
– Connect the MSM capillary labeled with in with the output
of the separation column using a PEEK pressure screw (6.2744.070).
￭ Hang separation column with chip in the column holder of the
instrument.
11
Conditioning the instrument
(see Chapter 4.2, page 64)
The instrument is now ready for measuring samples.
3.3 Installation diagram
The following installation diagram shows the schematics of the front of the instrument after installation has been completed with the connected sample degasser. Many capillaries are already installed at the time the instrument is delivered; these capillaries are not numbered in the diagram. Numbered capillaries must be connected at the time of installation.
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14
881 Compact IC pro – Anion – MCS
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1
2
6
19
19
16
18
7
8
9
10
11
12
13
14
3
4
19
20
21
19
17
5
15
22
22
23
2
3 Installation
Figure 3 Installation diagram 881 Compact IC pro – Anion – MCS
1
Eluent aspirating capillary (6.1834.080)
Connected to the eluent degasser.
Column input capillary (6.1831.150)
2
Connected to the injection valve and threa­ded into the capillary recesses of the column heater.
881 Compact IC pro – Anion – MCS
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15
3.3 Installation diagram
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
MSM eluent inlet capillary
3
Labeled with in.
Detector inlet capillary
5
Regeneration solution aspirating capil-
7
lary (6.1803.020)
MSM regeneration solution inlet capil-
9
lary Labeled with regenerant.
Rinsing solution aspirating capillary
11
(6.1803.020)
MSM rinsing solution inlet capillary
13
Labeled with rinsing solution.
MCS aspirating capillary
15
For aspirating air low in CO2 out of the CO cartridge.
MSM eluent outlet capillary
4
Labeled with out.
Detector outlet capillary
6
Pump tubing (6.1826.320)
8
With orange/yellow stoppers, for the regen­eration solution.
MSM regeneration solution outlet
10
capillary Labeled with waste reg..
Pump tubing (6.1826.320)
12
With orange/yellow stoppers, for the rinsing solution.
MSM rinsing solution outlet capillary
14
Labeled with waste rins..
Sample aspirating capillary
16
2
(6.1803.040)
Connection Sample Degasser – Sample Pro­cessor.
Sample aspirating capillary
17
(6.1803.040)
Connected to the injection valve. Can be connected to the sample degasser if the sample matrix requires it.
PEEK pressure screws, short
19
(6.2744.070)
Pump tubing connection (6.2744.180)
21
With safety device and filter, for connecting capillaries to the outlet side of the peristaltic pump.
Luer coupling (6.2744.120)
23
Mounted on the MCS aspirating capillary with a short pressure screw (6.2744.070). For connecting the CO2 adsorption car­tridge.
Sample outlet capillary (6.1803.040)
18
Tubing olive (6.2744.034)
20
For connecting capillaries to the aspiration side of the peristaltic pump.
PEEK pressure screws, long
22
(6.2744.090)
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881 Compact IC pro – Anion – MCS
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3.4 Setting up the instrument

3.4.1 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.

3.4.2 Checks

Immediately after receipt, check whether the shipment has arrived com­plete and without damage by comparing it with the delivery note.

3.4.3 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.
3 Installation
The instrument should be protected against excessive temperature fluctu­ations and direct sunlight.

3.5 Capillary connections in the IC system

This chapter contains general information concerning the capillary con­nections in the IC instruments and systems.
Generally speaking, capillary connections between two components of an IC system are made up of one connection capillary and two pressure screws with which the capillary is connected to the respective compo­nents.
881 Compact IC pro – Anion – MCS
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17
3.5 Capillary connections in the IC system
4
1
2 3
Pressure screws
Figure 4 Connection of capillaries with pressure screws
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PEEK pressure screw (6.2744.014)
1
Use on the injection valve.
PEEK pressure screw, short
3
(6.2744.070)
For use on the high pressure pump, the purge valve, the inline filter, the pulsation absorber, 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.
Note
Note
Connection capillary
2
PEEK pressure screw, long
4
(6.2744.090)
Use on special components. Is not used on all instruments.
PEEK capillaries (poly­etheretherketone)
￭￭￭￭￭￭￭￭
18
Connection capillaries
PEEK capillaries and PTFE capillaries are used in the IC system.
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 6.2621.080 capillary cutter.
Usage:
￭ PEEK capillaries (6.1831.010) with an internal diameter of 0.25 mm for
the entire high pressure range.
881 Compact IC pro – Anion – MCS
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3 Installation
￭ PEEK capillaries (6.1831.030) with an internal diameter of 0.75 mm for
sample handling in the ultra trace range.
Caution
For the capillary connections between the injection valve and detector , PEEK capillaries with an internal diameter of 0.25 mm must be used. These are already connected to a newly delivered instrument.
PTFE capillaries (poly­tetrafluoroethylene)
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 sample handling
as well as for rinsing solutions (they do not have to be in the scope of delivery of the instrument).
Capillary connections
In order to achieve optimum analysis results, capillary connections in an IC system must be absolutely tight and free of dead volume. Dead volume occurs if two capillary ends connected to each other do not fit exactly, thus allowing liquid to escape. There are two possible reasons for this:
￭ The capillaries do not have exactly cut edges. ￭ The two capillary ends do not completely meet.
One prerequisite for dead volume free capillary connection is, that both capillary ends are cut exactly plane. Therefore we recommend only to cut PEEK capillaries with the capillary cutter (6.2621.080).
881 Compact IC pro – Anion – MCS
Creating dead volume free capillary connections
To create dead volume free capillary connections, proceed as follows:
Slide the pressure screw over the capillary. Ensure that the capillary
1
protrudes 1–2 mm from the tip of the pressure screw.
Plug the capillary all the way into the connection or coupling until
2
the stop.
Only then start turning the pressure screw, while keeping the capil-
3
lary pressed in space.
￭￭￭￭￭￭￭￭
19

3.6 Rear of the instrument

Colored sleeves for PEEK capillaries
The enclosed set of varicolored sleeves for PEEK capillaries (6.2251.000) serves to easily differentiate the various flows of liquid in the system through color coding. Each capillary leading a given liquid (e. g. eluent) can be highlighted with sleeves of the same color.
To highlight a capillary, proceed as follows:
Slide a sleeve of a selected color over a capillary an move it to an
1
easily visible position.
If the capillary heats up, the sleeve shrinks and adapts to the form of the capillary.
3.6 Rear of the instrument

3.6.1 Transport locking screws

To avoid damage to the high pressure pump and vacuum pump during transport, the pumps are secured with transport locking screws .
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Remove these transport locking screws before the initial start-up.
Removing transport locking screws
In order to avoid damage to the pump, the transport locking screws must be remounted each time the instrument undergoes major trans­port.

3.6.2 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 (5-2) must be connected, the instrument switched on and the leak sensor switched to active in MagIC Net.
Remove all of the transport locking screws with the 6.2621.030 4
1
mm hexagon key and keep them in a safe place.
Warning
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881 Compact IC pro – Anion – MCS
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