Metrohm 856 User Manual
856 Conductivity Module
Manual
8.856.8005EN
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
856 Conductivity Module
8.856.8005EN
Manual
09.2013 ek
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 Conductivity Module system ............................................... 1
1.2 Instrument description ......................................................... 2
1.3 Measuring modes and commands ...................................... 2
1.4 About the documentation ................................................... 3
1.4.1 Symbols and conventions ........................................................ 3
1.5 Safety instructions ................................................................ 4
1.5.1 General notes on safety ........................................................... 4
1.5.2 Electrical safety ........................................................................ 4
1.5.3 Working with liquids ................................................................ 5
1.5.4 Recycling and disposal ............................................................. 5
2 Overview of the instrument 6
Table of contents
3 Installation 8
3.1 Setting up the instrument .................................................... 8
3.1.1 Packaging ................................................................................ 8
3.1.2 Checks .................................................................................... 8
3.1.3 Location .................................................................................. 8
3.2 Connecting a controller ........................................................ 8
3.2.1 Operation ................................................................................ 8
3.3 Connecting MSB devices .................................................... 12
3.3.1 Connecting a dosing device ................................................... 13
3.3.2 Connecting a stirrer or titration stand .................................... 14
3.3.3 Connecting a Remote Box ..................................................... 15
3.4 Connecting USB devices ..................................................... 16
3.4.1 General ................................................................................. 16
3.4.2 Connecting a USB hub ........................................................... 16
3.4.3 Connecting a printer .............................................................. 17
3.4.4 Connecting a balance ............................................................ 17
3.4.5 Connecting a PC keyboard (only for operation with Touch
Control) ................................................................................. 19
3.4.6 Connecting a barcode reader ................................................. 19
3.5 Connecting sensors ............................................................ 21
3.5.1 Connecting a conductivity measuring cell .............................. 21
4 Operation and maintenance 23
856 Conductivity Module
4.1 General notes ...................................................................... 23
4.1.1 Care ...................................................................................... 23
4.1.2 Maintenance by Metrohm Service .......................................... 23
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III
Table of contents
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4.2 Quality Management and qualification with Metrohm .. 24
5 Troubleshooting 25
5.1 General ................................................................................ 25
6 Appendix 26
6.1 Remote interface ................................................................ 26
6.1.1 Pin assignment of the remote interface .................................. 26
7 Technical specifications 30
7.1 Measuring interface ........................................................... 30
7.1.1 Conductivity .......................................................................... 30
7.1.2 Temperature .......................................................................... 30
7.2 Power connection ............................................................... 31
7.3 Safety specifications ........................................................... 31
7.4 Electromagnetic compatibility (EMC) ................................ 31
7.5 Ambient temperature ......................................................... 32
7.6 Reference conditions .......................................................... 32
7.7 Dimensions .......................................................................... 32
7.8 Interfaces ............................................................................. 32
8 Warranty (guarantee) 34
9 Accessories 36
Index 38
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IV
856 Conductivity Module
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Table of figures
Figure 1 856 Conductivity Module system ....................................................... 1
Figure 2 Front 856 Conductivity Module ......................................................... 6
Figure 3 Rear 856 Conductivity Module .......................................................... 7
Figure 4 Connecting the Touch Control ........................................................... 9
Figure 5 Connecting the computer ................................................................ 11
Figure 6 MSB connections ............................................................................ 12
Figure 7 Connecting a dosing device ............................................................. 14
Figure 8 Connecting an MSB stirrer ............................................................... 14
Figure 9 Connecting the propeller stirrer to the titration stand ...................... 15
Figure 10 Connecting the Remote Box ............................................................ 15
Figure 11 Connecting a printer ....................................................................... 17
Figure 12 Connecting a conductivity measuring cell ........................................ 21
Figure 13 Connecting the adapter box ............................................................ 22
Figure 14 Connecting the conductivity measuring cell to the adapter box ....... 22
Figure 15 Connectors of the Remote Box ........................................................ 26
Figure 16 Pin assignment of remote socket and remote plug .......................... 26
Table of figures
856 Conductivity Module
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MSB
Controller
PC Keyboard
Barcode
Reader
USB/RS-232 Converter
Touch Control
USB Sample Processor
Robotic Titrosampler
USB Hub
Relay Box
Remote Box
Balance
Dosing Interface
Dosino
Stirrer / Ti Stand
Dosimat
On
Status
Titrando
USB
856 Conductivity
Module
Cond. cell
Sensors
Printer
Tower-PC
1 Introduction
1.1 Conductivity Module system
1 Introduction
856 Conductivity Module
Figure 1 856 Conductivity Module system
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1.2 Instrument description
1.2 Instrument description
Conductivity measurements can be performed with the 856 Conductivity
Module.
The 856 Conductivity Module has the following characteristics:
￭ Operation
A touch-screen Touch Control or a high-performance PC software is
used for operation.
￭ Dosing
Dosinos or Dosimats can be used for dosing.
￭ MSB connectors
Four MSB connectors (Metrohm Serial Bus) for connecting dosing devices (Dosimat with exchange unit or Dosino with dosing unit), stirrers,
titration stands and Remote Boxes.
￭ USB connectors
Two USB connectors, with which devices such as printers, PC keyboards, barcode readers or additional control instruments (USB Sample
Processor, Titrando, Dosing Interface, etc.) can be connected.
￭ Measuring interface
One measuring input for a conductivity measuring cell with integrated
temperature sensor.
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1.3 Measuring modes and commands
The following measuring modes and commands are supported:
￭ MEAS
The following measuring modes can be selected for measurements:
– Cond (conductivity measurement)
– T (temperature measurement)
￭ CAL
Calibration.
– Cond (determination of the cell constant of a conductivity mea-
suring cell)
￭ Dosing commands
The following commands for dosing can be selected:
– PREP (rinsing the cylinder and tubings of an exchange unit or
dosing unit)
– EMPTY (emptying the cylinder and tubings of a dosing unit)
– ADD (dosing a specified volume)
– LQH (carrying out complex dosing tasks with a Dosino)
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856 Conductivity Module
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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 the user must follow in order to ensure safe operation of the instrument.
1.4.1 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.
1 Introduction
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.
856 Conductivity Module
CAUTION
This symbol draws attention to possible damage to
instruments or instrument parts.
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1.5 Safety instructions
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 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
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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.
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Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
856 Conductivity Module
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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.
1.5.3 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 Introduction
1.5.4 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.
856 Conductivity Module
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2 Overview of the instrument
Figure 2 Front 856 Conductivity Module
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"On" LED
1
Lights up when the Conductivity Module is
ready for operation.
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856 Conductivity Module
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