Metrohm 843 User Manual
843 Pump Station
with peristaltic Pumps
Manual
8.843.8003EN
Metrohm AG
CH-9101 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
843 Pump Station
with peristaltic Pumps
Manual
8.843.8003EN 09.2008 ek
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 Model versions ...................................................................... 1
1.3 Intended use ......................................................................... 1
1.4 About the documentation ................................................... 2
1.4.1 Symbols and conventions ........................................................ 2
1.5 Safety instructions ................................................................ 3
1.5.1 General notes on safety ........................................................... 3
1.5.2 Personnel safety ...................................................................... 3
1.5.3 Electrical safety ........................................................................ 4
1.5.4 Tubing connections ................................................................. 5
1.5.5 Working with liquids ................................................................ 5
1.5.6 Working with flammable liquids and chemicals ........................ 5
1.5.7 Chemical resistance ................................................................. 6
1.5.8 Recycling and disposal ............................................................. 6
Table of contents
2 Overview of the instrument 7
2.1 Front of the instrument ........................................................ 7
2.2 Rear of the instrument ......................................................... 8
2.3 Peristaltic pump .................................................................... 9
2.4 Safety shield ........................................................................ 10
3 Installation 11
3.1 Setting up the instrument .................................................. 11
3.1.1 Packaging .............................................................................. 11
3.1.2 Checks .................................................................................. 11
3.1.3 Location ................................................................................ 11
3.2 Mounting tubings ............................................................... 11
3.2.1 Pump tubing ......................................................................... 11
3.2.2 Inlet and outlet tubing ........................................................... 12
3.2.3 Mounting the safety shield .................................................... 13
3.3 Connecting control devices .............................................. 15
3.4 Connecting mains cable ..................................................... 19
4 Operation 20
5 Handling and maintenance 21
5.1 General information ........................................................... 21
5.1.1 Care ...................................................................................... 21
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Table of contents
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5.1.2 Maintenance by Metrohm Service .......................................... 21
5.2 Pump .................................................................................... 21
5.3 Tubings ................................................................................ 22
5.3.1 Safety instructions ................................................................. 22
5.3.2 Selection of pump tubings ..................................................... 22
5.3.3 Tubing replacement and service life ....................................... 22
5.3.4 Suitability test for tubings ...................................................... 23
5.4 Quality Management and validation with Metrohm ....... 24
6 Troubleshooting 25
6.1 Problems ............................................................................. 25
7 Appendix 26
7.1 Remote interface ................................................................ 26
7.1.1 Pin assignment of the remote interface .................................. 26
8 Technical data 28
8.1 Peristaltic pump .................................................................. 28
8.2 Mains connection ............................................................... 28
8.3 Safety specifications ........................................................... 28
8.4 Electromagnetic compatibility (EMC) ................................ 29
8.5 Ambient temperature ......................................................... 29
8.6 Reference conditions .......................................................... 29
8.7 Dimensions .......................................................................... 30
8.8 Interfaces ............................................................................. 30
9 Conformity and warranty 31
9.1 Declaration of Conformity ................................................. 31
9.2 Quality Management Principles ........................................ 32
9.3 Warranty (guarantee) ......................................................... 33
10 Accessories 34
10.1 Scope of delivery ................................................................ 34
10.1.1 843 Pump Station with Peristaltic Pumps 2.843.0120 ............ 34
10.1.2 843 Pump Station with Peristaltic Pumps (Rinsing and aspira-
tion equipment) 2.843.0130 .................................................. 36
10.1.3 843 Pump Station with Peristaltic Pumps for VA applications
2.843.0140 ........................................................................... 39
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IV
10.2 Optional accessories ........................................................... 44
10.2.1 843 Pump Station with Peristaltic Pumps 2.843.0120 ............ 44
10.2.2 843 Pump Station with Peristaltic Pumps (Rinsing and aspira-
tion equipment) 2.843.0130 .................................................. 44
843 Pump Station with Peristaltic Pumps
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Index 48
Table of contents
10.2.3 843 Pump Station with Peristaltic Pumps for VA applications
2.843.0140 ........................................................................... 45
843 Pump Station with Peristaltic Pumps
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Table of figures
Table of figures
Figure 1 Front 843 Pump Station with peristaltic pumps .................................. 7
Figure 2 Rear 843 Pump Station with peristaltic pumps ................................... 8
Figure 3 Peristaltic pump ................................................................................. 9
Figure 4 Rear of the safety shield .................................................................. 10
Figure 5 Remote connection 869 — 843 — 8xx Titrino plus ......................... 16
Figure 6 Remote connection 8xx Dosimat plus — 869 — 843 — 8xx Titrino
plus ................................................................................................. 16
Figure 7 Remote connection 869 — 843 — 8xx Titrino plus — 8xx Dosimat
plus ................................................................................................. 17
Figure 8 Remote connection 863 — 843 — 797 .......................................... 17
Figure 9 Remote connection 838 — 843 — 797 .......................................... 18
Figure 10 Remote connection 814/815 — 843 ............................................... 18
Figure 11 Remote connection remote box — 843 ........................................... 19
Figure 12 Connecting a mains cable ............................................................... 19
Figure 13 Pin assignment of remote socket and plug ...................................... 26
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843 Pump Station with Peristaltic Pumps
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1 Introduction
1.1 Instrument description
The 843 Pump Station has the following characteristics:
￭ Two peristaltic pumps
￭ Two remote connectors:
– Remote 1 for connecting instruments which control the pumps.
– Remote 2 for connecting other instruments.
￭ An integrated power supply unit (100...240 V), which operates the per-
istaltic pumps.
1.2 Model versions
The 843 Pump Station is available in three different instrument versions:
1 Introduction
2.843.0120
2.843.0130
2.843.0140
1.3 Intended use
The 843 Pump Station is designed for usage in automated systems in analytical laboratories. It is not suitable for usage in biochemical, biological or
medical environments in its basic equipment version.
Standard instrument
Standard instrument, with special accessories for
automatic emptying of the titration beaker and
cleaning the titration equipment while working
with sample changers.
Standard instrument, with special accessories for
VA applications.
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1.4 About the documentation
1.4 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.
1.4.1 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.
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Instruction step
Carry out these steps in the sequence shown.
Warning
This symbol draws attention to a possible life hazard
or risk of injury.
Warning
This symbol draws attention to a possible hazard due
to electrical current.
Warning
This symbol draws attention to a possible hazard due
to heat or hot instrument parts.
Warning
This symbol draws attention to a possible biological
hazard.
Caution
This symbol draws attention to a possible damage of
instruments or instrument parts.
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2
Note
This symbol marks additional information and tips.
843 Pump Station with Peristaltic Pumps
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1.5 Safety instructions
1.5.1 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.
1.5.2 Personnel safety
Warning
1 Introduction
Wear protective goggles and working clothes suitable for laboratory work
while operating the 843 Pump Station. It is also advisable to wear gloves
when caustic liquids are used or in situations where glass vessels could
break.
Warning
Install the safety shield supplied with the equipment whenever using the
instrument.
The 843 Pump Station cannot be operated without a safety shield.
Any manipulations in order to avoid the safety shutdown may not be
carried out.
Warning
Personnel are not permitted to reach into the working area of the instrument while operations are running!
A considerable risk of injury exists for the user.
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1.5 Safety instructions
In the event of a possible blockage of a drive, the mains plug must be
pulled out of the socket immediately. Do not attempt to free jummed
sample vessels or other parts while the instrument is switched on. Blockages can only be cleared when the instrument is in a voltage-free status;
this action generally involves a considerable risk of injury.
The 843 Pump Station is not suitable for usage in biochemical, biological
or medical environments in its basic equipment version.
Appropriate protective measures must be implemented in the event that
potentially infectious samples or reagents are being processed.
1.5.3 Electrical safety
The electrical safety when working with the instrument is ensured as part of
the international standard IEC 61010.
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Warning
Warning
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.
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Only operate this instrument with a mains voltage specified for it (see rear
panel of the instrument).
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Protection against electrostatic charges
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.
1.5.4 Tubing connections
Leaks in tubing 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.
1 Introduction
Warning
Caution
Regularly check the leak-tightness of the tubings. If the instrument is used
mainly in unattended operation, then weekly inspections are mandatory.
1.5.5 Working with liquids
Caution
Periodically check all system connections for leaks. Observe the relevant
regulations in respect to working with flammable and/or toxic fluids and
their disposal.
1.5.6 Working with flammable liquids 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.
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1.5 Safety instructions
1.5.7 Chemical resistance
Caution
Before utilizing any particularly aggressive media, it is imperative that you
determine whether or not the parts of the instrument that have media
contact are resistant to them.
Above all, the proper tubing material must be selected.
1.5.8 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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843 Pump Station with Peristaltic Pumps
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843 Pump Station
Pump 1
Pump 2
5
8
7
6
8
7
4
2 Overview of the instrument
2.1 Front of the instrument
2 Overview of the instrument
Figure 1 Front 843 Pump Station with peristaltic pumps
Pump 1
1
For switching peristaltic pump 1 on and off.
Mains switch/Emergency stop switch
3
For switching the instrument on and off.
Peristaltic pump 1 with safety shield
5
For rinsing.
Contact pin with screw
7
Arranges the safety shutdown of the peristaltic pump with a photoelectric barrier.
843 Pump Station with Peristaltic Pumps
Pump 2
2
For switching peristaltic pump 2 on and off.
Tubing guide
4
For bundling up the tubings.
Peristaltic pump 2 with safety shield
6
For aspiration.
Tab
8
For attaching the safety shield.
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7
2.2 Rear of the instrument
1
2
3
4
5
6
2.2 Rear of the instrument
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1
3
5
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8
Figure 2 Rear 843 Pump Station with peristaltic pumps
Tubing guide
For bundling up the tubings.
Remote 1
For connecting an instrument that controls
the pump.
Mains connection
For connecting the Pump Station to the mains
supply.
Bore hole
2
Additional hole for screwing in the tubing
guide in situations where Pump Station is to
be operated in a lying position.
Remote 2
4
For connecting other system instruments.
Type plate
6
Contains specifications concerning mains
voltage, instrument type and serial number.
843 Pump Station with Peristaltic Pumps
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5
2.3 Peristaltic pump
2 Overview of the instrument
Figure 3 Peristaltic pump
Tube clamp
1
For fixing the tubing in place with the tubing
olive.
Pressure clamp
3
For fixing the tubing in place.
Guidance with sensor
5
For inserting the contact pin.
843 Pump Station with Peristaltic Pumps
Fixing lever with clamping screw
2
For fixing the pressure clip in place and for
regulating the flow of liquid.
Tab
4
For attaching the safety shield.
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