Metrohm 867pH User Manual
867 pH Module
Manual
8.867.8003EN
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
867 pH Module
8.867.8003EN
Manual
07.2013 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 pH 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 ........................................................................ 5
1.5.3 Working with liquids ................................................................ 6
1.5.4 Recycling and disposal ............................................................. 6
2 Overview of the instrument 7
Table of contents
3 Installation 9
3.1 Setting up the instrument .................................................... 9
3.1.1 Packaging ................................................................................ 9
3.1.2 Checks .................................................................................... 9
3.1.3 Location .................................................................................. 9
3.2 Connecting a controller ........................................................ 9
3.2.1 Operation ................................................................................ 9
3.3 Connecting MSB devices .................................................... 13
3.3.1 Connecting a dosing device ................................................... 14
3.3.2 Connecting a stirrer or titration stand .................................... 15
3.3.3 Connecting a Remote Box ..................................................... 16
3.4 Connecting USB devices ..................................................... 17
3.4.1 General ................................................................................. 17
3.4.2 Connecting a USB hub ........................................................... 17
3.4.3 Connecting a printer .............................................................. 18
3.4.4 Connecting a balance ............................................................ 18
3.4.5 Connecting a PC keyboard (only for operation with Touch
Control) ................................................................................. 20
3.4.6 Connecting a barcode reader ................................................. 20
3.5 Connecting sensors ............................................................ 22
3.5.1 Connecting a pH, metal or ion-selective electrode .................. 22
3.5.2 Connecting a reference electrode .......................................... 22
3.5.3 Connecting a polarizable electrode ........................................ 23
3.5.4 Connecting a temperature sensor or an electrode with inte-
grated temperature sensor .................................................... 24
3.5.5 Connecting an iConnect ........................................................ 24
867 pH Module
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Table of contents
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4 Operation and maintenance 26
4.1 General notes ...................................................................... 26
4.1.1 Care ...................................................................................... 26
4.1.2 Maintenance by Metrohm Service .......................................... 26
4.2 Quality Management and qualification with
Metrohm ............................................................................. 27
5 Troubleshooting 28
5.1 General ................................................................................ 28
6 Appendix 30
6.1 Remote interface ................................................................ 30
6.1.1 Pin assignment of the remote interface .................................. 30
7 Technical specifications 34
7.1 Measuring interface ........................................................... 34
7.1.1 Potentiometry ........................................................................ 34
7.1.2 Temperature .......................................................................... 35
7.1.3 Polarizer ................................................................................ 35
7.2 Power connection ............................................................... 36
7.3 Safety specifications ........................................................... 36
7.4 Electromagnetic compatibility (EMC) ................................ 36
7.5 Ambient temperature ......................................................... 37
7.6 Reference conditions .......................................................... 37
7.7 Dimensions .......................................................................... 37
7.8 Interfaces ............................................................................. 37
8 Warranty (guarantee) 39
9 Accessories 41
9.1 Scope of delivery ................................................................ 41
9.1.1 2.867.0010 ........................................................................... 41
9.1.2 2.867.0110 ........................................................................... 42
9.1.3 2.867.0210 ........................................................................... 46
9.2 Optional accessories ........................................................... 50
Index 54
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IV
867 pH Module
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Table of figures
Figure 1 867 pH Module system ..................................................................... 1
Figure 2 Front 867 pH Module ........................................................................ 7
Figure 3 Rear of 867 pH Module ..................................................................... 8
Figure 4 Connecting the Touch Control ......................................................... 10
Figure 5 Connecting the computer ................................................................ 12
Figure 6 MSB connections ............................................................................ 13
Figure 7 Connecting a dosing device ............................................................. 15
Figure 8 Connecting an MSB stirrer ............................................................... 15
Figure 9 Connecting the propeller stirrer to the titration stand ...................... 16
Figure 10 Connecting the Remote Box ............................................................ 16
Figure 11 Connecting a printer ....................................................................... 18
Figure 12 Connecting a pH, metal or ion-selective electrode ........................... 22
Figure 13 Connecting a reference electrode .................................................... 23
Figure 14 Connecting a polarizable electrode .................................................. 23
Figure 15 Connecting a temperature sensor or an electrode with integrated tem-
perature sensor ............................................................................... 24
Figure 16 Connecting the iConnect ................................................................. 25
Figure 17 Connecting an electrode to the iConnect ........................................ 25
Figure 18 Connectors of the Remote Box ........................................................ 30
Figure 19 Pin assignment of remote socket and remote plug .......................... 30
Table of figures
867 pH 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
Cond. cell
Sensors
Printer
Tower-PC
867 pH Module
1 Introduction
1.1 pH Module system
1 Introduction
867 pH Module
Figure 1 867 pH Module system
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1.2 Instrument description
1.2 Instrument description
The 867 pH Module has the following characteristics:
￭ Operation
A touch-screen Touch Control or a high-performance PC software is
used for operation.
￭ Dosing
Dosinos and Dosimats can be used for dosing. Dosing is required for
standard additions and when auxiliary solutions are to be dosed.
￭ MSB connectors
Four MSB connectors (Metrohm Serial Bus) for connecting dosing devices (Dosimat with exchange unit or Dosino with dosing unit), stirrers
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 each for:
– a potentiometric electrode (pH, metal or ion-selective electrode)
– a separate reference electrode
– a temperature sensor (Pt1000 or NTC)
– a polarizable electrode
– an iConnect (measuring interface for electrodes with integrated
data chip, so-called iTrodes)
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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:
– pH (pH measurement)
– U (potentiometric voltage measurement)
– T (temperature measurement)
– Ipol (voltametric measurement with selectable polarization cur-
rent)
– Upol (amperometric measurement with selectable polarization
voltage)
– Conc (concentration measurement)
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867 pH Module
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1 Introduction
￭ STDADD
The measuring modes for standard addition are listed separately only in
tiamo™. In Touch Control they are integrated in the measuring mode
MEAS Conc.
The following measuring modes can be selected for measurements:
– auto (automatic addition of the standard addition solution by
specifying a potential difference)
– dos (automatic addition of the standard addition solution by
specifying the individual volume increments)
– man (manual addition of the standard addition solution)
￭ CAL
Electrode calibration.
Measuring mode:
– pH (calibration of pH electrodes)
– Conc (calibration of ion-selective electrodes)
￭ ELT
Electrode test for pH electrodes.
This mode is listed separately only in tiamo™. In Touch Control, the
electrode test is part of the CAL calibration mode.
￭ 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)
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.
867 pH Module
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1.5 Safety instructions
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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.
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.
WARNING
This symbol draws attention to a possible biological
hazard.
CAUTION
This symbol draws attention to possible damage to
instruments or instrument parts.
NOTE
This symbol highlights additional information and
tips.
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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.
867 pH Module
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1.5.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
1 Introduction
WARNING
WARNING
Mains voltage
WARNING
An incorrect mains voltage can damage the instrument.
Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
Protection against electrostatic charges
WARNING
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
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.
867 pH Module
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1.5 Safety instructions
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.
1.5.4 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.
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867 pH Module
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2 Overview of the instrument
Figure 2 Front 867 pH Module
2 Overview of the instrument
"On" LED
1
Lights up when the pH Module is ready for
operation.
867 pH Module
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Figure 3 Rear of 867 pH Module
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Electrode connector (Ind.)
1
For connecting pH, metal or ion-selective
electrodes with integrated or separate reference electrode. Socket F.
Temperature sensor connector (Temp.)
3
For connecting temperature sensors (Pt1000
or NTC). Two B sockets, 2 mm.
Electrode connector (iConnect)
5
For connecting electrodes with integrated
data chip (iTrodes).
USB connector (USB 1 and USB 2)
7
USB ports (type A) for connecting printer,
keyboard, barcode reader, USB Sample Processor, etc.
Power socket
9
Electrode connector (Ref.)
2
For connecting reference electrodes, e.g.
Ag/AgCl reference electrode. Socket B,
4 mm.
Electrode connector (Pol.)
4
For connecting polarizable electrodes, e.g.
double Pt wire electrodes. Socket F.
Connector (Controller)
6
For connecting a Touch Control or a PC with
installed PC software. Mini DIN, 9-pin.
Type plate
8
Contains specifications concerning supply
voltage, instrument type and serial number.
MSB connector (MSB 1 to MSB 4)
10
Metrohm Serial Bus. For connecting external
dosing devices, stirrers or Remote Boxes.
Mini DIN, 9-pin.
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867 pH Module
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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 which is suitable for
operation, free of vibrations, protected from corrosive atmosphere, and
contamination by chemicals.
The instrument should be protected against excessive temperature fluctuations and direct sunlight.
3.2 Connecting a controller
3.2.1 Operation
Two different versions are available for operating the 867 pH Module:
￭ A Touch Control with touch-sensitive screen. It forms a "stand-alone
instrument" together with the 867 pH Module.
￭ A computer enables operation of the 867 pH Module with the help of
a PC software, e.g. tiamo.
CAUTION
Take care to ensure that the power supply cable is pulled out of the
power socket before either setting up or disconnecting connections
between the instruments.
867 pH Module
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3.2 Connecting a controller
3.2.1.1 Connecting a Touch Control
NOTE
The plug is protected against accidental disconnection of the cable by
means of a pull-out protection feature. If you wish to pull out the plug,
you will first need to pull back the outer plug sleeve marked with
arrows.
Connect the Touch Control as follows:
￭ Insert the plug of the Touch Control connection cable into the
1
Controller socket.
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Figure 4 Connecting the Touch Control
￭ Connect the MSB devices (see Chapter 3.3, page 13).
2
￭ Connect the USB devices (see Chapter 3.4, page 17).
￭ Connect the pH Module to the power supply.
3
￭ Switch on the Touch Control.
4
The Touch Control power supply is supplied through the pH Module.
Automatic system tests are performed on both instruments at the
time of activation. The On LED on the front of the pH Module lights
up when the system test has been completed and the instrument is
ready for operation.
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867 pH Module
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3 Installation
CAUTION
The Touch Control must be shut down properly by deactivation with
the power switch on the rear of the instrument before the power supply is interrupted. If this is not done, then there is a danger of data loss.
Because of the fact that the power supply for the Touch Control is provided through the pH Module, you must never disconnect the pH Module from the power supply (e.g. by deactivating with a connector strip)
before you have deactivated the Touch Control.
If you would prefer not to position the Touch Control directly next to the
pH Module, then you can lengthen the connection with the 6.2151.010
cable. The maximum connection length permitted is 5 m.
3.2.1.2
Connecting a computer
The 867 pH Module requires a USB connection to a computer in order to
be able to be controlled by a PC software. Using a 6.2151.000 controller
cable, the instrument can be connected directly, either to a USB socket on
a computer, to a connected USB hub or to a different Metrohm control
device.
You need administrator rights for the installation of driver software and
control software on your computer.
Cable connection and driver installation
A driver installation is required in order to ensure that the 867 pH Module
is recognized by the PC software. To accomplish this, you must comply
with the procedures specified. The following steps are necessary:
1
Installing the software
￭ Insert the PC software installation CD and carry out the installa-
tion program directions.
￭ Exit the program if you have started it after the installation.
2
Establishing the cable connections
￭ Connect all peripheral devices to the instrument, see Chapter 3.3,
page 13 and see Chapter 3.4, page 17.
￭ Connect the instrument to the power supply if you have not
already done this.
The "On" LED on the 867 pH Module is not yet illuminated!
￭ Connect the instrument to a USB connector (Type A) of your com-
puter (see manual of your computer). The 6.2151.000 cable is
used for this purpose.
867 pH Module
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