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
843 Pump Station with Peristaltic Pumps
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III
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
￭￭￭￭￭￭￭￭
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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V
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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￭￭￭￭￭￭￭￭
VI
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.
843 Pump Station with Peristaltic Pumps
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1
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.
843 Pump Station with Peristaltic Pumps
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3
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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4
Only operate this instrument with a mains voltage specified for it (see rear
panel of the instrument).
843 Pump Station with Peristaltic Pumps
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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.
843 Pump Station with Peristaltic Pumps
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5
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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6
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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9
2.4 Safety shield
1
2.4 Safety shield
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Figure 4 Rear of the safety shield
Contact pin
1
Arranges the safety shutdown of the peristaltic pump with a photoelectric barrier.
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10
843 Pump Station with Peristaltic Pumps
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3 Installation
3.1 Setting up the instrument
3.1.1 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.
3.1.2 Checks
Immediately after receipt, check whether the shipment has arrived complete
and without damage by comparing it with the delivery note.
3.1.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
3 Installation
Place the instrument in a location of the laboratory suitable for operation
and free of vibrations, if possible protected from corrosive atmospheres and
contamination by chemicals.
The instrument should be protected against excessive temperature fluctuations and direct sunlight.
3.2 Mounting tubings
3.2.1 Pump tubing
Pharmed® tubing is recommended as the pump tubing for the peristaltic
pump.
Mount the pump tubing as follows:
Cut the pump tubing to a length of approx. 16 cm.
1
Insert the tubing olives supplied into both tubing ends.
2
It may also be expedient to fasten the tubing to the tubing olives at
3
both ends with cable binders.
843 Pump Station with Peristaltic Pumps
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11
3.2 Mounting tubings
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This prevents liquid from leaking at excessively high pressures.
Place the pump tubing in the pump head as shown in the figure.
4
Fasten the tubing with the tube clamps.
5
Take care to ensure that the tubing is as centered as possible on the
roller.
Apply pressure to the pressure clamp and clamp tightly with the fixing
6
lever (see Chapter 2.3, page 9).
Tighten the set screw to an extent sufficient to ensure that the pump
7
tubing is unable to shift position and that a uniform flow of liquid is
conveyed when the pump is switched on.
The clamping screw can, if necessary, be readjusted while the pump is
running.
3.2.2 Inlet and outlet tubing
Two different types of tubings are available as inlet and outlet tubing. Both
of them are included in the scope of delivery (see Chapter 10.1.1, page
34):
￭ PVC tubing (6.1801.120), 2 x 2 m
￭ PTFE tubing (6.1812.000), 1 x 4 m
The question of which of the two types of tubing you should use is primarily
dependent on the type of solvent used. PVC tubing is softer and has the
advantage of causing less noise during the pumping procedure.
Mount the inlet and outlet tubing as follows:
Cut the inlet and outlet tubing to appropriate lengths.
1
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12
843 Pump Station with Peristaltic Pumps
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3 Installation
Mount it to the screw connectors of the tubing olives of the pump
2
tubing.
The openings of the PTFE tubing may need to be widened (e.g. with a
Phillips screwdriver) for fixation purposes. A piece of sandpaper may
be used to get a better grip on a PTFE tube.
Screw the union nuts on tightly in order to ensure a secure tubing
3
connection.
Hold the inlet and outlet tubing together with a cable binder.
4
Insert the tubings through the tubing guide in order to fix them in place.
5
3.2.3 Mounting the safety shield
Attach the safety shield
Attach slot (1) of the safety shield onto the tab (2) of the peristaltic
1
pump.
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
13
3.2 Mounting tubings
2
1
2
1
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Attach contact pin (1) on the safety shield onto the opening (2) of the
2
sensor.
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14
843 Pump Station with Peristaltic Pumps
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Slide the safety shield all the way to the rear until it audibly snaps in.
3
3 Installation
Remove the safety shield
Press the tab slightly down.
1
Remove the safety shield.
2
3.3 Connecting control devices
Various possibilities are shown below for connecting different instruments
to the 843 Pump Station. Instruments which control the pumps of the Pump
Station are connected to Remote 1, while all other instruments are connected to Remote 2. The figures also contain the order numbers of the
required cables.
843 Pump Station with Peristaltic Pumps
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15
3.3 Connecting control devices
6.2141.230
6.2141.230
869 Compact Sample Changer
843 Pump Station
Titrino plus
6.2141.230
6.2141.230
6.2141.240
6.2141.260
869 Compact Sample Changer
843 Pump Station
Dosimat plus
Titrino plus
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Example 1
Connection of a Compact Sample Changer (Remote 1) and a Titrino plus
(Remote 2) to the Pump Station.
Figure 5 Remote connection 869 — 843 — 8xx Titrino plus
Example 2
Connection of a Dosimat plus, a Compact Sample Changer (Remote 1) and
a Titrino plus (Remote 2) to the Pump Station.
Figure 6 Remote connection 8xx Dosimat plus — 869 — 843 — 8xx
Titrino plus
or
Connection of a Compact Sample Changer (Remote 1) and a Titrino plus
and a Dosimat plus (both to Remote 2) to the Pump Station.
16
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843 Pump Station with Peristaltic Pumps
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6.2141.230
6.2141.230
6.2141.240
6.2141.260
869 Compact Sample Changer
843 Pump Station
Dosimat plus
Titrino plus
6.2141.230
6.2141.280
843 Pump Station
863 Compact Autosampler
797 VA Computrace
3 Installation
Figure 7 Remote connection 869 — 843 — 8xx Titrino plus — 8xx Dos-
imat plus
Example 3
Connection of a Compact Autosampler (Remote 2) and a VA Computrace
(Remote 1) to the Pump Station.
Figure 8 Remote connection 863 — 843 — 797
843 Pump Station with Peristaltic Pumps
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17
3.3 Connecting control devices
6.2141.280
843 Pump Station
797 VA Computrace
Swing
Head
Ext.
Pump 2
Ext.
Pump 1
WARNING - Fire Hazard -
with the same type and rating of fuse
For continued protection replace only
Made by Metrohm
Herisau Switzerland
Type:
Nr.:
S: 115 VA
U: 100 - 240 V
f: 50 - 60 Hz
RS 232
MSB1
MSB3
MSB2
Power
Keyboard
Remote
1.838.0010
01107
838 Advanced Sample Processor
6.2141.290
843 Pump Station
Swing
Head
WARNING - Fire Hazard -
with the same type and rating of fuse
For continued protection replace only
Made by Metrohm
Herisau Switzerland
Type:
Nr.:
S: 115 VA
U: 100 - 240 V
f: 50 - 60 Hz
RS 232
MSB1
MSB3
MSB2
Power
Keyboard
Remote
1.838.0010
01107
6.2141.300
USB Sample Processor
Ext.
Pump 2
Ext.
Pump 1
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Example 4
Connection of an Advanced Sample Processor (Remote 2) and a VA Com-
putrace (Remote 1) to the Pump Station.
Figure 9 Remote connection 838 — 843 — 797
Example 5
Connection of a USB Sample Processor (Remote 2) to the Pump Station.
Figure 10 Remote connection 814/815 — 843
18
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843 Pump Station with Peristaltic Pumps
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6.2141.280
843 Pump Station
6.2148.010
Remote Box
Example 6
Connection of a remote box (Remote 1) in order to connect a titration
system. Pump 1 and Pump 2 are controlled by the output line 9 or 10,
respectively.
Figure 11 Remote connection remote box — 843
3.4 Connecting mains cable
3 Installation
Warning
This instrument must not be operated except with the mains voltage
specified for it (see rear panel of the instrument).
Protect the connection sockets against moisture.
Figure 12 Connecting a mains cable
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
19
4 Operation
The control of the Pump Station is handled via remote signal by the 869
Compact Sample Changer or the 797 VA Computrace. It can however also
be operated manually.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Mains switch/Emergency stop
Pump 1 Hold down the peristaltic pump 1 switch for man-
Pump 2 Hold down the peristaltic pump 2 switch for man-
Switching the Pump Station on and off. Press
switch for emergency stop. Illumination of the LED
indicates ready-for-operation status.
ual rinsing.
ual aspiration.
￭￭￭￭￭￭￭￭
20
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Handling and maintenance
5.1 General information
5.1.1 Care
The 843 Pump Station requires appropriate care. Excess contamination of
the instrument may result in functional disruptions and a reduction in the
service life of the sturdy mechanics and electronics.
Spilled chemicals and solvents must be removed immediately. Above all, the
plug connections on the rear of the instrument (in particular the mains connection socket) should be protected from contamination.
Caution
Although this is extensively prevented by design measures, the mains plug
should be unplugged immediately if aggressive media has penetrated the
inside of the instrument, so as to avoid serious damage to the instrument
electronics. In such cases, the Metrohm Service must be informed.
5 Handling and maintenance
5.1.2 Maintenance by Metrohm Service
Maintenance of the 843 Pump Station is best carried out as part of an annual
service, which is performed by technicians of the Metrohm company. If
working frequently with caustic and corrosive chemicals, a shorter maintenance interval could be necessary.
The Metrohm service department offers every form of technical advice for
maintenance and service of all Metrohm instruments.
5.2 Pump
Caution
The Pump Station must be switched off immediately with the Emergency
Stop switch if the peristaltic pump becomes blocked. If this is not done,
then the pump could suffer damage from overheating.
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
21
5.3 Tubings
5.3 Tubings
5.3.1 Safety instructions
Because of the fact that the pump is subject to wear, it must be replaced on
a regular basis. Worn-out, defective pump tubing represents a safety risk,
particularly when aggressive liquids are being conveyed.
Note
Check the pump tubing regularly for cracking, leaks or the intake of air
Use separate pump tubings for different liquids. Dispose of used tubing
without delay.
5.3.2 Selection of pump tubings
The most important decision when using peristaltic pumps is the selection
of suitable tubing material. Always use tubings particularly intended for peristaltic pumps.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
The peristaltic pump of the Pump Station is supplied with a PharMed® pump
tubing (Order no. 6.1826.100; 6,4/9,5 mm⌀ made of thermoplastic polypropylene). It is especially suitable for aqueous media.
For the transport of non-aqueous solutions, we recommend a Viton pump
tubing (Order no. 6.1826.160).
If you need other tubings for your application, take care of the following
points when evaluating the pump tubings:
￭ Chemical resistance
￭ Pressure build-up in the pump tubing
￭ Sterilizability
￭ Temperature of the pump medium and the environment
￭ Viscosity of the liquid
￭ Permeability of the pump tubing
￭ Demanded delivery rate
￭ Tubing dimensions
5.3.3 Tubing replacement and service life
Pump tubings have a limited service life and must therefore be replaced at
regular intervals. Factors which could influence the service life of tubings in
the peristaltic pump include:
￭￭￭￭￭￭￭￭
22
￭ Pumping speed (rolling effect/min)
￭ Properties of the liquid being conveyed
￭ Initial pressure
￭ Ambient temperature
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Handling and maintenance
￭ Shearing force of the rollers
￭ Twisting or kinking of the tubing
￭ Excessive tubing length under the pressure clamp
￭ Changes in wall thickness
Observe the following when using tubings:
￭ If the tubing is not pulled sufficiently tightly around the rotor, then this
will have a negative effect on the service life of the tubing. The tubing
has a tendency to unfold in such situations. If the tubing is too tightly
pulled, then the flow will be narrowed.
￭ The tubing will last longer if you loosen the pressure clamp when the
pump is not being used.
￭ In order to achieve good repeatability of feed rate following a change in
tubing, it is imperative that you always choose the same tubing length.
￭ Before replacing the tubing turn off the peristaltic pumps with the
mains switch, or pull out the mains cable of the Pump Station in order
to prevent any unintended starting of the pump.
￭ Before replacing the tubing, make sure that all of the liquid has been
pumped out of the tubing.
￭ Loosen the pressure clamp and remove the old tubing.
Note
Use only Pharmed® tubing as replacements for the pump tubing.
5.3.4 Suitability test for tubings
Place a short piece of the tubing for 48 hours in an enclosed container that
has been filled with the liquid that is to be conveyed. Afterwards, inspect
the piece of tubing for signs of swelling, brittleness or other limitations.
Caution
An incorrectly selected tubing materials can endanger both users and
instruments.
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
23
5.4 Quality Management and validation with Metrohm
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5.4 Quality Management and validation with Metrohm
Quality Management
Metrohm offers you comprehensive support in implementing quality management measures for instruments and software. You can find information
on this in the brochure available from your local Metrohm agent «Quality
Management with Metrohm».
Validation
Please contact your local Metrohm agent for support in validating instruments and software. Here you can also obtain validation documentation to
provide help for carrying out the Installation Qualification (IQ = Installa-
tion Qualification) and the Operational (OQ = Operational Qualification).
IQ and OQ are also offered as a service by the Metrohm agents. In addition,
various application bulletins are also available on the subject, which also
contain Standard Operating Procedures (SOP = Standard Operating
Procedure) for testing analytical measuring instruments for reproducibility
and correctness.
Maintenance
Electronic and mechanical functional groups in Metrohm instruments can
and should be checked as part of regular maintenance by specialist personnel from Metrohm. Please ask your local Metrohm agent regarding the
precise terms and conditions involved in concluding a corresponding maintenance agreement.
Note
You can find information on the subjects of quality management, validation and maintenance as well as an overview of the documents currently
available at www.metrohm.com under Support/Quality Manage-
ment.
￭￭￭￭￭￭￭￭
24
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6 Troubleshooting
6.1 Problems
Problem Cause Remedy
6 Troubleshooting
Peristaltic pump insufficient or no
delivery rate
Peristaltic pump
does not run.
The flow is not set
correctly.
The liquid is not aspirated, but just "bubbles" instead.
The tubing connection of the inlet and
outlet tubing drips.
Contact pressure of the peristaltic pump is too weak.
Tubing breakage. The tubing is jammed in the tube
clamp instead of the tubing
olive with the tubing.
Mains cable is not connected.
The safety shield is not correctly mounted.
The flow is too strong or too
weak.
The inlet and outlet tubing
are switched. The outlet
tubing is submerged in the
solution to be aspirated
instead of the inlet tubing.
The tubings are not screwed
on correctly.
Correctly set contact pressure.
Fasten the piece of tubing with the tubing olive
in the tube clamp.
Connect mains cable.
Remove the safety shield and mount it anew. It
must snap in audibly.
Loosen or tighten the fixing lever with the
clamping screw.
Switch the tubing. Inlet tubing into the solution
and outlet tubing into the waste container.
Check the screw connector.
The tubing connection of the pump tubing is dripping or
spraying.
A connected instrument does not run.
843 Pump Station with Peristaltic Pumps
Pressure is too high.
Mains cable is not connected.
Remote connectors are not
correctly connected.
The remote connectors
have been switched.
Loosen somewhat the fixing lever of the pressure clip. It may also prove necessary to tie the
tubing tightly to the tubing olive with a cable
binder.
Connect mains cable.
Check remote connectors.
Check connected devices (see Chapter 3.3,
page 15).
￭￭￭￭￭￭￭￭
25
7.1 Remote interface
1
5
6
9
5
1
9
6
7 Appendix
7.1 Remote interface
7.1.1 Pin assignment of the remote interface
Figure 13 Pin assignment of remote socket and plug
The above pin assignment display applies for all Metrohm instruments with
9-pin D-Sub remote connectors.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
The two remote interfaces are linked with one another in the instrument.
Various signal lines are looped through from Remote 1 to Remote 2, without
executing a function in the instrument.
Table 1 Functions and connections of the remote interfaces
Remote 1 Remote 2
Pin No. Function/Connection Pin No.
1
2
———
———
8
2
3 Pump 1 3
4 Pump 2 4
5
———
9
6 0 Volt (GND) 6
- -
8
———
1
9
￭￭￭￭￭￭￭￭
26
———
843 Pump Station with Peristaltic Pumps
5
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
+5 V
t
p
Pin 3,4
Pin 7
0 V
+16…24 V
7 Appendix
Remote 1: Inputs (Pin 3 and 4)
approx. 5 kΩ Pull-up
tp＞ 100 ms
active = low, inactive = high
Remote 2: Inputs (Pin 3 and 4)
active = with voltage, inactive = without voltage
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
27
8.1 Peristaltic pump
8 Technical data
8.1 Peristaltic pump
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Type
Shift direction
Rotational speed
Delivery rate
1-channel peristaltic pump
Clockwise direction
300 r/min
900 mL/min
Typical value with PharMed®- pump tubing 6.4 mm / 9.6 mm / 1 m
(6.1826.100).
Depends on contact pressure.
Material of pump
PP pump tubing (PharMed®)
tubing
8.2 Mains connection
Voltage
Frequency
Power consumption
Fuse
100…240 V
50…60 Hz
45 W
2.0 ATH
8.3 Safety specifications
Design and testing
Safety instructions
￭￭￭￭￭￭￭￭
28
￭ EN/IEC 61010-1: 2001
￭ UL 61010-1: 2004
￭ CSA-C22.2 No. 61010-1: 2004
￭ EN/IEC 61010-2-081: 2003
￭ Protection class I
The documentation contains safety instructions which have to be followed by the user in order to ensure safe operation of the instrument.
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8.4 Electromagnetic compatibility (EMC)
Emission
Standards fulfilled
Immunity
Standards fulfilled
￭ EN/IEC 61326-1:2006
￭ EN/IEC 61000-6-3:2004
￭ EN 55022 / CISPR 22:2006
￭ EN/IEC 61326-1:2006
￭ EN/IEC 61000-6-2:2005
￭ EN/IEC 61000-4-2:2001
￭ EN/IEC 61000-4-3:2002
￭ EN/IEC 61000-4-4:2004
￭ EN/IEC 61000-4-5:2001
￭ EN/IEC 61000-4-6:2001
￭ EN/IEC 61000-4-11:2004
￭ EN/IEC 61000-4-14:2004
￭ NAMUR:2004
8 Technical data
8.5 Ambient temperature
Nominal function
range
Storage
Transport
+5…+45 °C
–40…+70 °C
–40…+70 °C
8.6 Reference conditions
Ambient temperature
Relative humidity
+25 °C (±3 °C)
≤60 %
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
29
8.7 Dimensions
8.7 Dimensions
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Width
Height
Depth
Weight (without
accessories)
Material
0.16 m
0.40 m
0.30 m
5.08 kg
Polyurethane, painted (upper part)
Steel housing, stove-enameled (lower part)
8.8 Interfaces
Remote interfaces
For connecting devices with a remote interface.
￭￭￭￭￭￭￭￭
30
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
9 Conformity and warranty
9.1 Declaration of Conformity
This is to certify the conformity to the standard specifications for electrical
appliances and accessories, as well as to the standard specifications for
security and to system validation issued by the manufacturing company.
9 Conformity and warranty
Name of commodity
Electromagnetic compatibility
Safety specifications
843 Pump Station
Pump Station with two pumps
This instrument has been built and has undergone final type testing according to the standards:
Emission: EN/IEC 61326-1: 2006,
EN/IEC 61000-6-3: 2004
EN 55022 / CISPR 22: 2006
Immunity: EN/IEC 61326-1: 2006, EN/IEC 61000-6-2: 2005,
EN/IEC 61000-4-2: 2001,
EN/IEC 61000-4-3: 2002,
EN/IEC 61000-4-4: 2004,
EN/IEC 61000-4-5: 2001,
EN/IEC 61000-4-6: 2001,
EN/IEC 61000-4-11: 2004,
EN/IEC 61000-4-14: 2004, NAMUR: 2004
EN/IEC 61010-1: 2001, UL 61010-1: 2004, CSA-C22.2 No. 61010-1: 2004,
EN/IEC 61010-2-081:2003, protection class I
This instrument meets the requirements of the CE mark as contained in the
EU directives 2006/95/EC (LVD), 2004/108/EC (EMC). It fulfils the following
specifications:
EN 61326-1 Electrical equipment for measurement, control and
EN 61010-1 Safety requirements for electrical equipment for
Manufacturer
843 Pump Station with Peristaltic Pumps
Metrohm Ltd., CH-9101 Herisau/Switzerland
Metrohm Ltd. is holder of the SQS certificate ISO 9001:2000 Quality management system for development, production and sales of instruments and
accessories for ion analysis.
laboratory use – EMC requirements
measurement, control and laboratory use
￭￭￭￭￭￭￭￭
31
9.2 Quality Management Principles
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Herisau, 19 September 2007
D. Strohm
Vice President, Head of R&D
9.2 Quality Management Principles
Metrohm Ltd. holds the ISO 9001:2000 Certificate, registration number
10872-02, issued by SQS (Swiss Association for Quality and Management
Systems). Internal and external audits are carried out periodically to assure
that the standards defined by Metrohm’s QM Manual are maintained.
The steps involved in the design, manufacture and servicing of instruments
are fully documented and the resulting reports are archived for ten years.
The development of software for PCs and instruments is also duly documented and the documents and source codes are archived. Both remain the
possession of Metrohm. A non-disclosure agreement may be asked to be
provided by those requiring access to them.
The implementation of the ISO 9001:2000 quality management system is
described in Metrohm’s QM Manual, which comprises detailed instructions
on the following fields of activity:
Ch. Buchmann
Vice President, Head of Production
Responsible for Quality Assurance
Instrument development
The organization of the instrument design, its planning and the intermediate
controls are fully documented and traceable. Laboratory testing accompanies all phases of instrument development.
Software development
Software development occurs in terms of the software life cycle. Tests are
performed to detect programming errors and to assess the program’s functionality in a laboratory environment.
Components
All components used in the Metrohm instruments have to satisfy the quality
standards that are defined and implemented for our products. Suppliers of
components are audited by Metrohm as the need arises.
Manufacture
The measures put into practice in the production of our instruments guarantee a constant quality standard. Production planning and manufacturing
￭￭￭￭￭￭￭￭
32
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
procedures, maintenance of production means and testing of components,
intermediate and finished products are prescribed.
Customer support and service
Customer support involves all phases of instrument acquisition and use by
the customer, i.e. consulting to define the adequate equipment for the analytical problem at hand, delivery of the equipment, user manuals, training,
after-sales service and processing of customer complaints. The Metrohm
service organization is equipped to support customers in implementing
standards such as GLP, GMP, ISO 900X, in performing Operational Qualification and Performance Verification of the system components or in carrying
out the System Validation for the quantitative determination of a substance
in a given matrix.
9.3 Warranty (guarantee)
Metrohm guarantees that the deliveries and services it provides are free from
material, design or manufacturing errors. The warranty period is 36 months
from the day of delivery; for day and night operation it is 18 months. The
warranty remains valid on condition that the service is provided by an
authorized Metrohm service organization.
9 Conformity and warranty
Glass breakage is excluded from the warranty for electrodes and other
glassware. The warranty for the accuracy corresponds to the technical specifications given in this manual. For components from third parties that make
up a considerable part of our instrument, the manufacturer's warranty provisions apply. Warranty claims cannot be pursued if the Customer has not
complied with the obligations to make payment on time.
During the warranty period Metrohm undertakes, at its own choice, to either
repair at its own premises, free of charge, any instruments that can be shown
to be faulty or to replace them. Transport costs are to the Customer's
account.
Faults arising from circumstances that are not the responsibility of Metrohm,
such as improper storage or improper use, etc. are expressly excluded from
the warranty.
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
33
10.1 Scope of delivery
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 Accessories
10.1 Scope of delivery
Note
Subject to change without notice.
10.1.1 843 Pump Station with Peristaltic Pumps 2.843.0120
Qty. Order no. Description
1 1.843.0120 843 Pump Station with Peristaltic Pumps
4 6.1801.120 PVC tubing / 4 mm / 6 mm / 2 m
Material: PVC (transparent)
Outer diameter (mm): 6
Inner diameter (mm): 4
Length (m): 2
2 6.1812.000 PTFE tubing / 4 mm / 6 mm / 4 m
For rinsing with sample changers.
Material: PTFE
Outer diameter (mm): 6
Inner diameter (mm): 4
Length (m): 4
￭￭￭￭￭￭￭￭
34
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Qty. Order no. Description
4 6.1820.050 Screw connector
For 6.1826.010 pump tubing, to peristaltic pumps.
1 6.1826.100 PP pump tubing / 6.4 mm / 9.6 mm / 1 m
Replaces the pump tubing used with the 772 Pump Unit.
Material: PP
Outer diameter (mm): 9.6
Inner diameter (mm): 6.4
Length (m): 1
10 Accessories
2 6.1828.000 PVDF connection nipple
For canisters 6.1621.000
Material: PVDF
1 6.2122.0x0 Mains cable with C13 line socket IEC-60320-
C13
Cable plug according to customer requirements.
Switzerland: Type SEV 12
6.2122.020
Germany, …: Type CEE(7), VII
6.2122.040
USA, …: Type NEMA/ASA
6.2122.070
1 8.843.8003EN Manual 843 Pump Station with peristaltic
pumps
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
35
10.1 Scope of delivery
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10.1.2 843 Pump Station with Peristaltic Pumps (Rinsing and aspiration equipment) 2.843.0130
Qty. Order no. Description
1 1.843.0120 843 Pump Station with Peristaltic Pumps
1 6.1543.120 Aspiration tip / Thread M8
Aspiration tip if using the 6.1805.200 aspiration tubing
Material: ETFE/PTFE
Length (mm): 151
2 6.1621.000 Canister / 10 L
As rinsing or waste container in automated systems.
Material: PE
Width (mm): 265
Height (mm): 400
Volume (mL): 10000
2 6.1621.100 Sealing lid to the 10 l canister
Sealing lid to the 10 l canister. For simple and secure transport of filled
canisters.
Material: PE
Note, Material: HD
Height (mm): 19
Outer diameter (mm): 26.7
￭￭￭￭￭￭￭￭
36
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Qty. Order no. Description
4 6.1801.120 PVC tubing / 4 mm / 6 mm / 2 m
Material: PVC (transparent)
Outer diameter (mm): 6
Inner diameter (mm): 4
Length (m): 2
1 6.1805.200 PTFE tubing / M8 / 0.5 m
Material: PTFE
Outer diameter (mm): 4
Inner diameter (mm): 3
Length (mm): 500
10 Accessories
3 6.1805.420 FEP tubing / M6 / 48 cm
Protected against light and kink.
Material: FEP
Inner diameter (mm): 2
Length (mm): 480
2 6.1812.000 PTFE tubing / 4 mm / 6 mm / 4 m
For rinsing with sample changers.
Material: PTFE
Outer diameter (mm): 6
Inner diameter (mm): 4
Length (m): 4
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭
37
10.1 Scope of delivery
Qty. Order no. Description
1 6.1808.240 Distributor Rinsing / Aspirating for 869 Com-
pact Sample Changer
Distributor with 3 x M6, 1 x M8 and 2 x 1/8 connectors for using rinsing
and / or aspiration equipment on the 869 Compact Sample Changer.
4 6.1820.050 Screw connector
For 6.1826.010 pump tubing, to peristaltic pumps.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
1 6.1826.100 PP pump tubing / 6.4 mm / 9.6 mm / 1 m
Replaces the pump tubing used with the 772 Pump Unit.
Material: PP
Outer diameter (mm): 9.6
Inner diameter (mm): 6.4
Length (m): 1
2 6.1828.000 PVDF connection nipple
For canisters 6.1621.000
Material: PVDF
￭￭￭￭￭￭￭￭
38
843 Pump Station with Peristaltic Pumps
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Qty. Order no. Description
3 6.2740.020 Spray nozzle
For the fine-spraying of the rinsing solution.
Material: ETFE
Outer diameter (mm): 10
Length (mm): 47
1 6.2122.0x0 Mains cable with C13 line socket IEC-60320-
C13
Cable plug according to customer requirements.
Switzerland: Type SEV 12
6.2122.020
Germany, …: Type CEE(7), VII
6.2122.040
USA, …: Type NEMA/ASA
6.2122.070
10 Accessories
1 8.843.8003EN Manual 843 Pump Station with peristaltic
pumps
10.1.3 843 Pump Station with Peristaltic Pumps for VA applications
2.843.0140
Qty. Order no. Description
1 1.843.0120 843 Pump Station with Peristaltic Pumps
4 6.1446.040 Threaded stopper / M6
Material: PVDF
Height (mm): 21.5
Outer diameter (mm): 4.9
843 Pump Station with Peristaltic Pumps
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39
10.1 Scope of delivery
Qty. Order no. Description
1 6.1456.210 Measuring vessel / 10-90 mL
Measuring vessel for automated VA systems
Material: Clear glass
Height (mm): 80
Outer diameter (mm): 78
Volume (mL): 10 ... 90
1 6.1602.115 Bottle attachment / S 40 / green
For direct dosing out of reagent bottles with thread S 40 (Merck...).
Material: PFA/PP
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2 6.1621.000 Canister / 10 L
As rinsing or waste container in automated systems.
Material: PE
Width (mm): 265
Height (mm): 400
Volume (mL): 10000
1 6.1805.020 FEP tubing / M6 / 52 cm
Protected against light and kink.
Material: FEP
Inner diameter (mm): 2
Length (mm): 520
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40
843 Pump Station with Peristaltic Pumps
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Qty. Order no. Description
1 6.1805.100 FEP tubing / M6 / 40 cm
Protected against light and kink.
Material: FEP
Inner diameter (mm): 2
Length (mm): 400
1 6.1805.180 FEP tubing / M6 / 16 cm
Protected against light and kink.
Material: FEP
Inner diameter (mm): 2
Length (mm): 160
10 Accessories
4 6.1805.530 FEP tubing / M6 / 2 m
Protected against light and kink.
Material: FEP
Inner diameter (mm): 2
Length (mm): 2000
843 Pump Station with Peristaltic Pumps
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41
10.1 Scope of delivery
Qty. Order no. Description
1 6.1808.000 Coupling bush M6
Material: ETFE
Outer diameter (mm): 10
Length (mm): 25
4 6.1820.050 Screw connector
For 6.1826.010 pump tubing, to peristaltic pumps.
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1 6.1826.100 PP pump tubing / 6.4 mm / 9.6 mm / 1 m
Replaces the pump tubing used with the 772 Pump Unit.
Material: PP
Outer diameter (mm): 9.6
Inner diameter (mm): 6.4
Length (m): 1
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843 Pump Station with Peristaltic Pumps
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Qty. Order no. Description
1 6.1828.020 5-way tubing connector M6 for canister
For connecting up to 5 tubings
Material: FEP
Material 2: ETFE
1 6.1829.020 FEP aspiration tubing / M6 / 0.5 m
For dosing unit
Material: FEP
Inner diameter (mm): 2
Length (mm): 500
10 Accessories
1 6.2141.280 Connecting cable 843 Pump Station - 797 VA
Computrace
Cable for the remote connection between 843 Pump Station and 797
VA Computrace.
1 6.2122.0x0 Mains cable with C13 line socket IEC-60320-
C13
Cable plug according to customer requirements.
Switzerland: Type SEV 12
6.2122.020
Germany, …: Type CEE(7), VII
6.2122.040
USA, …: Type NEMA/ASA
6.2122.070
1 8.843.8003EN Manual 843 Pump Station with peristaltic
pumps
843 Pump Station with Peristaltic Pumps
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10.2 Optional accessories
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10.2 Optional accessories
10.2.1 843 Pump Station with Peristaltic Pumps 2.843.0120
Order no. Description
6.1826.160 Pump tubing Viton
Replaces the pump tubing used with the Pump Unit
Material: Viton
Outer diameter (mm): 6.4
Length (m): 1
6.2141.260 Remote cable Compact Sample Changer - Dosimat plus
and Titrino plus
Cable for remote connection of Compact Sample Changer to Dosimat plus and
further devices (e.g. Titrino plus or Pump Station).
6.2141.300 Remote cable 843-Sample Processor
Remote cable for directly connecting an 843 Pump Station to the pump connectors
of the Sample Processors.
10.2.2 843 Pump Station with Peristaltic Pumps (Rinsing and aspiration equipment) 2.843.0130
Order no. Description
6.1826.160 Pump tubing Viton
Replaces the pump tubing used with the Pump Unit
Material: Viton
Outer diameter (mm): 6.4
Length (m): 1
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843 Pump Station with Peristaltic Pumps
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Order no. Description
6.2141.260 Remote cable Compact Sample Changer - Dosimat plus
and Titrino plus
Cable for remote connection of Compact Sample Changer to Dosimat plus and
further devices (e.g. Titrino plus or Pump Station).
6.2141.300 Remote cable 843-Sample Processor
Remote cable for directly connecting an 843 Pump Station to the pump connectors
of the Sample Processors.
6.2740.030 Rinsing nozzle
The rinsing solution is applied as a fine jet for the optimal removal of layers on the
electrodes and titration accessories. For 6.5613.000 ECO titration equipment.
Material: ETFE
10 Accessories
10.2.3 843 Pump Station with Peristaltic Pumps for VA applications
2.843.0140
Order no. Description
6.1826.160 Pump tubing Viton
Replaces the pump tubing used with the Pump Unit
Material: Viton
Outer diameter (mm): 6.4
Length (m): 1
843 Pump Station with Peristaltic Pumps
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10.2 Optional accessories
Order no. Description
6.1621.100 Sealing lid to the 10 l canister
Sealing lid to the 10 l canister. For simple and secure transport of filled canisters.
Material: PE
Note, Material: HD
Height (mm): 19
Outer diameter (mm): 26.7
6.1801.120 PVC tubing / 4 mm / 6 mm / 2 m
Material: PVC (transparent)
Outer diameter (mm): 6
Inner diameter (mm): 4
Length (m): 2
6.1808.010 Coupling piece 2xM6
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2 external-thread M6. Part of the threaded connections for exchange units and
for 676 sample changers
Material: PCTFE
6.1812.000 PTFE tubing / 4 mm / 6 mm / 4 m
For rinsing with sample changers
Material: PTFE
Outer diameter (mm): 6
Inner diameter (mm): 4
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843 Pump Station with Peristaltic Pumps
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Order no. Description
6.1819.010 Teflon cannula
In the upper part of the measuring vessels of the VA stands
Material: PTFE
Outer diameter (mm): 2.5
Inner diameter (mm): 1.5
Length (mm): 86
6.1820.020 Screw connector / M6
Connector piece with M10 thread for 6.1812.XXX tubings and M6 thread for
6.1805.XXX tubings .
Material: PVDF
10 Accessories
6.1828.000 PVDF connection nipple
For canisters 6.1621.000
Material: PVDF
843 Pump Station with Peristaltic Pumps
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Index
Index
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C
Connecting
Compact Sample Changer .. 15
Control devices ................... 15
Dosimat plus ...................... 15
Mains cable ........................ 19
Titrino plus ......................... 15
VA Computrace .................. 15
E
Electrostatic charge .................... 5
Emergency stop switch ......... 7, 20
F
Front of the instrument .............. 7
G
GLP .......................................... 24
Guarantee ................................ 33
H
Handling .................................. 21
I
Instrument description ................ 1
M
Mains cable
Connecting ........................ 19
Mains voltage ............................. 4
Maintenance ............................ 21
O
Operation
Emergency stop switch ....... 20
Manual .............................. 20
Pump 1 manual .................. 20
Pump 2 manual .................. 20
P
Peristaltic pump .......................... 9
Delivery rate ....................... 28
Shift direction ..................... 28
Pin assignment ......................... 26
Q
Quality Management ................ 24
R
Rear of the instrument ................ 8
Remote
Interface ............................. 26
Pin assignment ................... 26
Remote connector
Remote 1 ......................... 1, 8
Remote 2 ......................... 1, 8
S
Safety instruction
Chemical resistance .............. 3
Electrical safety ..................... 3
General ................................ 3
Handling liquids .................... 3
Safety instructions ...................... 3
Safety shield ............................. 10
Attach ................................ 13
Remove .............................. 13
Service ....................................... 4
Service Agreement ................... 24
Standards ................................. 29
T
Tubing ..................................... 22
Mounting ........................... 11
Replacement ...................... 22
Safety instruction ................ 22
Service life, influencing factors
........................................... 22
Suitability test ..................... 23
V
Validation ................................. 24
W
Warranty .................................. 33
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843 Pump Station with Peristaltic Pumps
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