Metrohm 941 User Manual
941 Eluent Production Module
Manual
8.941.8001EN
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
941 Eluent Production Module
8.941.8001EN
Manual
09.2013 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://documents.metrohm.com.
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Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.1.1 Intended use ........................................................................... 1
1.2 About the documentation ................................................... 2
1.2.1 Symbols and conventions ........................................................ 2
1.3 Safety instructions ................................................................ 3
1.3.1 General notes on safety ........................................................... 3
1.3.2 Electrical safety ........................................................................ 3
1.3.3 Tubing and capillary connections ............................................. 4
1.3.4 Flammable solvents and chemicals ........................................... 4
1.3.5 Recycling and disposal ............................................................. 4
2 Overview of the instrument 6
2.1 Front ...................................................................................... 6
Table of contents
2.2 Rear ........................................................................................ 7
3 System overview 8
4 Installation 10
4.1 Setting up the instrument .................................................. 10
4.1.1 Packaging .............................................................................. 10
4.1.2 Checks .................................................................................. 10
4.1.3 Location ................................................................................ 10
4.2 Base tray and bottle holder ............................................... 10
4.2.1 Basic information on base tray and bottle holder ................... 10
4.2.2 Mounting base tray and bottle holder (optional) .................... 11
4.3 Connecting the eluent bottle ............................................. 16
4.4 Connecting the concentrate bottle ................................... 19
4.5 Connecting the ultrapure water container ....................... 22
4.5.1 Connecting the ultrapure water canister ................................ 22
4.5.2 Connecting an ELGA PURELAB flex ........................................ 25
4.6 Installing the Dosino .......................................................... 26
4.7 Connecting the instrument ................................................ 29
4.7.1 Connecting the instrument to the ion chromatograph ........... 29
4.7.2 Connecting the instrument to the power supply .................... 29
5 Operation 31
6 Operation and maintenance 32
6.1 Care ...................................................................................... 32
941 Eluent Production Module (2.941.0010)
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Table of contents
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6.2 Servicing the door .............................................................. 32
6.3 Dosino .................................................................................. 33
6.4 Dosing unit .......................................................................... 33
6.5 Quality Management and qualification with
Metrohm ............................................................................. 33
7 Troubleshooting 35
7.1 Dosino .................................................................................. 35
7.2 Dosing unit .......................................................................... 35
8 Technical specifications 36
8.1 Reference conditions .......................................................... 36
8.2 Ambient temperature ......................................................... 36
8.3 Level sensor ........................................................................ 36
8.4 Housing ............................................................................... 37
8.5 Dosino .................................................................................. 37
8.6 Dosing unit .......................................................................... 37
8.7 Power connection ............................................................... 37
8.8 Interfaces ............................................................................. 38
8.9 Safety specifications ........................................................... 38
8.10 Electromagnetic compatibility (EMC) ................................ 38
9 Warranty (guarantee) 40
10 Accessories 42
Index 44
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IV
941 Eluent Production Module (2.941.0010)
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Table of figures
Figure 1 Front ................................................................................................. 6
Figure 2 Rear .................................................................................................. 7
Figure 3 Bottle cap for level sensor - Inserting the measuring sensor ............. 16
Figure 4 Installing the eluent bottle cap with level sensor .............................. 17
Figure 5 Installing the concentrate bottle cap without level sensor ................ 19
Figure 6 Installing the concentrate bottle cap with level sensor ..................... 20
Figure 7 Installing the ultrapure water canister cap without level sensor ........ 22
Figure 8 Installing the ultrapure water canister cap with level sensor ............. 23
Figure 9 Installing an ELGA PURELAB flex ...................................................... 25
Figure 10 Connecting the Dosino .................................................................... 27
Table of figures
941 Eluent Production Module (2.941.0010)
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1 Introduction
1.1 Instrument description
The 941 Eluent Production Module allows you to produce eluent for
your IC system from a concentrate and ultrapure water as needed and in a
software-controlled manner.
Thanks to the built-in Level Control, the instrument is capable of monitoring the liquid levels in up to four liquid containers, if they are equipped
with level sensors.
A level sensor for the eluent bottle is indispensable for the automated production of eluent and is contained in the scope of delivery of the 941 Eluent Production Module. However, we recommend using level sensors to
also monitor the bottle with the concentrate and the ultrapure water container. Additional level sensors are available as optional accessories in various versions.
1 Introduction
The 941 Eluent Production Module is operated with the MagIC Net software. If the 941 Eluent Production Module is connected to a 940 Professional IC Vario instrument, MagIC Net automatically detects the 941 Eluent Production Module and checks its functional capability. It controls and
monitors the entire IC system including all connected instruments; it evaluates the measured data and manages it in a database.
1.1.1 Intended use
The 941 Eluent Production Module is an instrument for the automated
production of eluent for ion chromatography systems. It can monitor the
levels of various liquid containers and, where necessary, perform appropriate actions controlled by the software.
The present instrument is suitable for processing chemicals. Usage of the
941 Eluent Production Module therefore requires the user to have basic
knowledge and experience in handling toxic and caustic substances.
Knowledge with respect to the application of the fire prevention measures
prescribed for laboratories is also mandatory.
941 Eluent Production Module (2.941.0010)
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1.2 About the documentation
1.2 About the documentation
CAUTION
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which the user must follow in order to ensure safe operation of the instrument.
1.2.1 Symbols and conventions
The following symbols and formatting may appear 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.
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Instruction step
Carry out these steps in the sequence shown.
Method Dialog text, parameter in the software
File ▶ New Menu or menu item
[Next] Button or key
WARNING
This symbol draws attention to a possible life-threatening 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.
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CAUTION
This symbol draws attention to possible damage to
instruments or instrument parts.
941 Eluent Production Module (2.941.0010)
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1.3 Safety instructions
1.3.1 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.
1.3.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
1 Introduction
NOTE
This symbol highlights additional information and
tips.
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).
941 Eluent Production Module (2.941.0010)
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1.3 Safety instructions
Protection against electrostatic charges
WARNING
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
Do not fail to pull the mains cable out of the mains connection socket
before you set up or disconnect electrical plug connections at the rear
of the instrument.
1.3.3 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.
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Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are mandatory.
1.3.4 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. fume cup-
board).
￭ Keep all sources of flame far from the workplace.
￭ Clean up spilled liquids and solids immediately.
￭ Follow the safety instructions of the chemical manufacturer.
1.3.5 Recycling and disposal
This product is covered by European Directive 2002/96/EC, WEEE – Waste
from Electrical and Electronic Equipment.
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The correct disposal of your old equipment will help to prevent negative
effects on the environment and public health.
941 Eluent Production Module (2.941.0010)
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1 Introduction
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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2.1 Front
2 Overview of the instrument
2.1 Front
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Figure 1 Front
Dosino holder
1
Receptacle for a Dosino.
Cable conduit
3
Conduit to the rear of the instrument. For
feeding through tubing and the Dosino
cable.
LED
2
Standby indicator.
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941 Eluent Production Module (2.941.0010)
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2.2 Rear
2 Overview of the instrument
Figure 2 Rear
USB sockets
1
Two sockets for plugging in USB cables for
connecting devices with USB connector.
Labeled USB 1 and USB 2.
MSB sockets
3
Three sockets for plugging in MSB cables for
connecting devices with MSB connector.
Labeled MSB 2, MSB 3 and MSB 4.
Level sensor sockets
5
Four sockets for connecting level sensor
cables (6.2151.060).
Cable conduit
7
Conduit to the front of the instrument. For
feeding through tubing and the Dosino
cable.
Controller socket
2
Socket for plugging in the USB cable
(6.2151.000) for connecting the ion chromatograph.
Power socket
4
For connecting the power supply cable.
Type plate
6
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3 System overview
The following figure shows an ion chromatography system with a Sample
Processor (left), the ion chromatograph (middle) and the 941 Eluent Production Module (right).
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The 941 Eluent Production Module consists of a housing with a built-in
Level Control. A Dosino with a 50 mL dosing unit, the canister for ultrapure water, the bottle for the eluent concentrate, the level sensor for the
eluent bottle and all small parts required for a standard setup are included
in the accessories supplied.
In a standard setup, only the eluent bottle is equipped with a level sensor.
The ultrapure water canister and the bottle with the concentrate are not
monitored.
If you intend to let your ion chromatography system run unsupervised for
extended periods of time, we recommend also monitoring the concentrate bottle and the ultrapure water canister with a level sensor.
941 Eluent Production Module (2.941.0010)
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