Metrohm 855 User manual

855 Robotic Titrosampler
Manual
8.855.8001EN / 2020-02-29

Metrohm AG
CH-9100 Herisau
Switzerland
Phone [phone]
Fax [phone]
[email protected]
www.metrohm.com
855 Robotic Titrosampler
Manual
8.855.8001EN / 2020-02-29

Technical Communication
Metrohm AG
CH-9100 Herisau
[email protected]
This documentation is protected by copyright. All rights reserved.
This documentation has been prepared with great care. However, errors
can never be entirely ruled out. Please send comments regarding possible
errors to the address above.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ III
Table of contents
1 Introduction 1
1.1 The 855 Robotic Titrosampler in the Titrando system ...... 1
1.2 Instrument description ......................................................... 2
1.2.1 Model versions ........................................................................ 3
1.2.2 Instrument components ........................................................... 4
1.2.3 Intended use ........................................................................... 4
1.3 About the documentation ................................................... 5
1.3.1 Symbols and conventions ........................................................ 5
1.4 Safety instructions ................................................................ 6
1.4.1 General notes on safety ........................................................... 6
1.4.2 Electrical safety ........................................................................ 6
1.4.3 Tubing and capillary connections ............................................. 7
1.4.4 Personnel safety ....................................................................... 7
1.4.5 Flammable solvents and chemicals ........................................... 9
1.4.6 Recycling and disposal ............................................................. 9
2 Overview of the instrument 10
2.1 Front and rear ..................................................................... 10
2.2 Back panel ........................................................................... 12
2.3 Sensor connectors .............................................................. 12
2.4 Sample racks ....................................................................... 13
3 Installation 15
3.1 Setting up the instrument .................................................. 15
3.1.1 Packaging .............................................................................. 15
3.1.2 Checks .................................................................................. 15
3.1.3 Location ................................................................................ 15
3.2 Preparing the Sample Processor ....................................... 15
3.2.1 Connecting the instrument to the power grid ........................ 15
3.3 Connecting a computer ...................................................... 16
3.4 Connecting the Swing Head .............................................. 18
3.5 Configuring the robotic arm .............................................. 19
3.6 Mounting the robotic arm ................................................. 21
3.7 Robotic arms with beaker sensor ..................................... 23
3.8 Installing the rinsing and aspiration equipment .............. 24
3.9 Placing tubing and cables in the guide chain .................. 27
3.10 Equipping the titration head ............................................. 28

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
3.11 Connecting the tower stirrer ............................................. 31
3.12 Connecting an external pump ........................................... 32
3.13 Connecting MSB devices .................................................... 33
3.13.1 Connecting a dosing device ................................................... 34
3.13.2 Connecting a stirrer or titration stand .................................... 35
3.13.3 Connecting a Remote Box ..................................................... 36
3.14 Connecting USB devices ..................................................... 37
3.14.1 Connecting a barcode reader ................................................. 37
3.15 Mounting the base plate ................................................... 39
3.16 Mounting the drip pan ....................................................... 40
3.17 Attaching a sample rack .................................................... 41
3.18 Mounting the safety shield ................................................ 42
4 Operation and maintenance 44
4.1 General notes ...................................................................... 44
4.2 Care ...................................................................................... 44
5 Troubleshooting 45
5.1 Sample Processor ............................................................... 45
5.2 Robotic arm ......................................................................... 45
5.3 Pump .................................................................................... 46
6 Appendix 47
6.1 Beaker sensor ..................................................................... 47
6.2 Rinsing nozzles ................................................................... 47
6.3 Remote interface ................................................................ 48
6.3.1 Pin assignment of the remote interfaces ................................ 49
6.4 Stirring rate ......................................................................... 50
6.5 Robotic arms ....................................................................... 51
6.5.1 Robotic arms for titration ....................................................... 51
6.5.2 Robotic arms for sample preparation ..................................... 53
6.5.3 Robotic arms for special applications ..................................... 54
7 Technical specifications 55
7.1 Measuring interface ........................................................... 55
7.1.1 Potentiometry ........................................................................ 55
7.1.2 Polarizer ................................................................................ 55
7.1.3 Temperature .......................................................................... 56
7.2 Lift and turntable ............................................................... 56
7.3 Membrane pump(s) with valve .......................................... 57

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ V
7.4 786 Swing Head ................................................................. 57
7.5 Interfaces and connectors ................................................. 57
7.6 Power connection ............................................................... 58
7.7 Ambient temperature ......................................................... 58
7.8 Reference conditions .......................................................... 58
7.9 Dimensions .......................................................................... 58
8 Accessories 59
Index 60

Table of figures ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
VI ￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
Table of figures
Figure 1 The Titrando system .......................................................................... 1
Figure 2 Front 855 Robotic Titrosampler ....................................................... 10
Figure 3 Rear 855 Robotic Titrosampler ......................................................... 11
Figure 4 Connector strip ............................................................................... 12
Figure 5 Sensor connectors ........................................................................... 13
Figure 6 Sample rack 6.2041.840 ................................................................. 13
Figure 7 Connecting the computer ................................................................ 17
Figure 8 Connecting the Swing Head ............................................................ 18
Figure 9 Robotic arms - standard model versions: .......................................... 19
Figure 10 Configuration data of the robotic arms ............................................ 20
Figure 11 Limitation screw on the robotic arm ................................................ 21
Figure 12 Mounting the robotic arm ............................................................... 22
Figure 13 Connecting a beaker sensor (for example 6.1462.150) .................... 23
Figure 14 Mounting the rinsing and aspiration tubings .................................... 24
Figure 15 Installing the rinsing tubings and the aspiration tip .......................... 29
Figure 16 Installing stirrer and electrode .......................................................... 30
Figure 17 Rod stirrer 802 Stirrer ...................................................................... 31
Figure 18 Magnetic stirrer 741 Stirrer .............................................................. 31
Figure 19 Connecting the tower stirrer ............................................................ 31
Figure 20 Connecting a pump ......................................................................... 32
Figure 21 MSB connections ............................................................................ 33
Figure 22 Connecting a dosing device ............................................................. 35
Figure 23 Connecting an MSB stirrer ............................................................... 35
Figure 24 Connecting the rod stirrer to the titration stand ............................... 36
Figure 25 Connecting the Remote Box ............................................................ 37
Figure 26 USB connectors ............................................................................... 38
Figure 27 Mounting the base plate ................................................................. 39
Figure 28 Installing the drip pan ...................................................................... 40
Figure 29 Attaching rack ................................................................................. 41
Figure 30 Mounting the safety shield .............................................................. 42
Figure 31 Beaker sensor on the tower ............................................................. 47
Figure 32 Spray nozzles - Mode of operation .................................................. 48
Figure 33 Connectors of the Remote Box ........................................................ 48
Figure 34 Pin assignment of remote socket and remote plug ........................... 49
Figure 35 Rotational speed depending on the stirring rate ............................... 50

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 1
1 Introduction
1.1 The 855 Robotic Titrosampler in the Titrando sys-
tem
The 855 Robotic Titrosampler is a component of the modular Titrando sys-
tem. Operation is carried out either by a Touch Control with a touch-sensi-
tive screen ("stand-alone titrator") or by a computer with a corresponding
software.
A Titrando system can contain numerous, various kinds of instruments.
The following figure provides an overview of the peripheral devices you
can connect to the 855 Robotic Titrosampler.
MSB
USB
Controller
PC Keyboard
Barcode
Reader
USB Hub
RS-232/USB Box
Balance
Touch Control
USB Sample Processor
Robotic Titrosampler
Printer
Bluetooth USB
Adapter
Personal Computer
Relay Box
Remote Box
Dosing Interface
Stirrer / Ti Stand Dosino Dosimat
On
Status
805
D
o
s
i
m
a
Me
t
r
o
h
On
Titrando
pH Module
Conductivity Module
Figure 1 The Titrando system

1.2 Instrument description ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
Up to three control instruments (Titrando, Dosing Interface, USB Sample
Processor, etc.) can be controlled via USB connection during operation
with the 900 Touch Control. If the tiamo software is used, then there is no
limit to the number of control instruments that can be used to extend the
system.
Updating the device software is described in the manual for the Touch
Control or in the online help for the tiamo software.
1.2 Instrument description
The 855 Robotic Titrosampler is a combined analyzer, unifying the func-
tionality of a titrator and a sample changer. It can be seamlessly incorpora-
ted as a system component and control instrument into a Metrohm
Titrando system.
The 855 Robotic Titrosampler is a versatile instrument. It has been
designed exclusively for usage in factories, as long as ambient conditions
(see chapter 7.7, page 58) are fulfilled, and laboratories and thereby cov-
ers a wide range of applications.
Thanks to the integration of high-performance USB interfaces, it can be
incorporated seamlessly into a Metrohm Titrando system. The versatile
communications options of the Titrando system (Remote Box, LIMS link,
etc.) can thus all be used. Thanks to these abilities, a 855 Robotic Titro-
sampler is predetermined for all kind of automation tasks in a modern lab-
oratory, especially for highly integrated laboratory data systems.
The user interface of the Touch Control or the tiamo software guarantees
comfortable operation and programming of the 855 Robotic Titrosampler.
The comprehensive range of commands and the various configuration
possibilities can comfortably and efficiently be used this way. The integra-
tion into the Titrando system also guarantees a 100% conformity of the
complete automation system with the FDA regulations (Food and Drug
Administration), especially with the regulation 21 CFR part 11, electronic
records and signatures.
There are exchangeable standard sample racks available for many vessel
dimensions. Freely selectable special beaker positions can be defined for
e.g. rinsing or conditioning beakers on every rack.
The equipment with a 786 Swing Head allows to process a large number
of samples in one single sample series. The robotic arms for the 786
Swing Head make it possible to move to any given point on a sample rack.
This way the number (a maximum of 999 rack positions) and sequencing
of the samples is almost unlimited.
Customer-specific special racks for individual requirements can be fabrica-
ted upon request.

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855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 3
1.2.1 Model versions
The 855 Robotic Titrosampler is available in the following versions with
different components.
2.855.0010
1-tower version
￭1 membrane pumpe and 1 valve
￭1 connector for an external pump
￭1 stirrer connector (tower stirrer)
￭1 786 Swing Head
￭1 measuring interface
￭3 MSB connectors for dosing devices, Remote Box or
stirrers
￭2 USB connectors
￭1 connector "Controller" for Touch Control or PC
2.855.0020
1-tower version
￭2 membrane pumps and 2 valves
￭1 stirrer connector (tower stirrer)
￭1 786 Swing Head
￭1 measuring interface
￭3 MSB connectors for dosing devices, Remote Box or
stirrers
￭2 USB connectors
￭1 connector "Controller" for Touch Control or PC
2.855.0030
1-tower version
￭1 membrane pumpe and 1 valve
￭1 connector for an external pump
￭1 stirrer connector (tower stirrer)
￭1 Swing Head connector
￭1 measuring interface
￭3 MSB connectors for dosing devices, Remote Box or
stirrers
￭2 USB connectors
￭1 connector "Controller" for Touch Control or PC

1.2 Instrument description ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
2.855.0040
1-tower version
￭2 membrane pumps and 2 valves
￭1 stirrer connector (tower stirrer)
￭1 Swing Head connector
￭1 measuring interface
￭3 MSB connectors for dosing devices, Remote Box or
stirrers
￭2 USB connectors
￭1 connector "Controller" for Touch Control or PC
1.2.2 Instrument components
The 855 Robotic Titrosampler has the following components:
￭Turntable
For sample racks with a diameter of up to 48 cm.
￭One tower with lift
The 2.855.0010 and 2.855.0020 versions with mounted 786 Swing
Head. The 2.855.0030 and 2.855.0040 versions can be upgraded with
a Swing Head. Any robotic arm can be mounted.
￭One or two membrane pumps per tower
Instead of an integrated pump, an external pump connector is avail-
able depending on the model version.
￭One stirrer connector on the tower
For connecting a rod stirrer (802 Stirrer) or a magnetic stirrer (741 Stir-
rer).
￭Sensor connectors
One connector each for:
– potentiometric electrodes (pH, ISE, metal)
– reference electrodes
– polarizable electrodes
– temperature sensors (Pt1000 or NTC)
￭Two USB connectors
For connecting a printer, barcode reader or other control instruments
(Titrando, Dosing Interface etc.).
￭Three MSB connectors (Metrohm Serial Bus)
For connecting dosing devices (Dosimat with exchange unit or Dosino
with dosing unit), stirrers or Remote Boxes.
1.2.3 Intended use
The 855 Robotic Titrosampler is designed for usage as an automation sys-
tem in analytical laboratories or in factories that fulfill the specified ambi-
ent conditions (see chapter 7.7, page 58). It is not suitable for usage in
biochemical, biological or medical environments in its basic equipment
version.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 5
This instrument is suitable for processing chemicals and flammable sam-
ples. Usage of the 855 Robotic Titrosampler therefore requires the user to
have basic knowledge and experience in handling toxic and caustic sub-
stances. Knowledge with respect to the application of the fire prevention
measures prescribed for laboratories is also mandatory.
1.3 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 opera-
tion of the instrument.
1.3.1 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 sec-
ond to the instrument part in the figure.
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-threat-
ening 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.

1.4 Safety instructions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
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.
1.4 Safety instructions
1.4.1 General notes on safety
WARNING
Operate this instrument only according to the information contained in
this documentation.
This instrument 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.
1.4.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
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.

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855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 7
Supply voltage
WARNING
An incorrect supply voltage can damage the instrument.
Only operate this instrument with a supply 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 power cord out of the power socket before you
set up or disconnect electrical plug connections at the rear of the
instrument.
1.4.3 Tubing and capillary connections
CAUTION
Leaks in tubing and capillary connections are a safety risk. Tighten all
connections well by hand. Avoid applying excessive force to tubing con-
nections. Damaged tubing ends lead to leakage. Appropriate tools can
be used to loosen connections.
Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are manda-
tory.
1.4.4 Personnel safety
WARNING
Wear protective goggles and working clothes suitable for laboratory
work while operating the 855 Robotic Titrosampler. It is also advisable
to wear gloves when caustic liquids are used or in situations where
glass vessels could break.

1.4 Safety instructions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
WARNING
Always install the safety shield supplied with the equipment before
using the instrument for the first time. Pre-installed safety shields are
not allowed to be removed.
The 855 Robotic Titrosampler may not be operated without a safety
shield!
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.
WARNING
In the event of a possible blockage of a drive, the power plug must be
pulled out of the socket immediately. Do not attempt to free jammed
sample vessels or other parts while the device 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.
WARNING
The 855 Robotic Titrosampler is not suitable for utilization in biochemi-
cal, 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.

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855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 9
1.4.5 Flammable solvents and chemicals
WARNING
All relevant safety measures are to be observed when working with
flammable solvents and chemicals.
￭Set up the instrument in a well-ventilated location (e.g. fume cup-
board).
￭Keep all sources of flame far from the workplace.
￭Clean up spilled liquids and solids immediately.
￭Follow the safety instructions of the chemical manufacturer.
1.4.6 Recycling and disposal
This product is covered by European Directive 2012/19/EU, WEEE – Waste
Electrical and Electronic Equipment.
The correct disposal of your old instrument will help to prevent negative
effects on the environment and public health.
More details about the disposal of your old instrument can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.

2.1 Front and rear ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
2 Overview of the instrument
2.1 Front and rear
1
2
3
4
5
6
7
8
9
Figure 2 Front 855 Robotic Titrosampler
1Safety shield (6.2751.100)
Other models, see chap. Accessories.
2Sample rack (6.2041.800)
Other models, see chap. Accessories.
3Turntable
With guide bolts.
4Assembly rail
For magnetic stirrer (741 Stirrer).
5Guide chain
For cables and tubings.
6Lift
With titration head holder.
7786 Swing Head (2.786.0020)
Drive for the robotic arm.
8Robotic arm (6.1462.050)
With aspiration and dosing tips.
9Beaker sensor

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 Overview of the instrument
855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 11
USB 2
1
2
3
4
5
6
7
8
9
Figure 3 Rear 855 Robotic Titrosampler
1Distributor
For rinsing equipment.
2Membrane pump
Pump 1.
3Pump connector
Pump 2. For external pumps (e.g. 772 Pump
Unit or 823 Pump Unit).
4Pump valve
5Connector "Swing Head"
Mini DIN socket (9-pin).
6Stirrer connector
DIN socket. For rod stirrer (802 Stirrer) or
magnetic stirrer (741 Stirrer).
7Back panel with connectors 8Measuring interface
With various measuring inputs.
9Warning symbols
See chapter Safety instructions.

2.2 Back panel ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭ 855 Robotic Titrosampler
2.2 Back panel
USB 2
USB 1 Contr.
MSB 1
MSB 2 MSB 3
Made by Metrohm
Herisau Switzerland
P: 115W U: 100 - 240 V f: 50 - 60 Hz
WARNING - Fire Hazard -
For continued protection replace only
with the same type and rating of fuse
Nr.
1 2 3 4 5
Figure 4 Connector strip
1USB connector (USB 1 and USB 2) 2Connector (Controller)
For the connection to the PC or Touch Con-
trol.
3MSB connector (MSB 1 to MSB 3)
For stirrers, dosing devices, Remote Box.
4Power socket
5Type plate
Contains specifications concerning supply
voltage and serial number.
2.3 Sensor connectors
The connectors for electrodes and temperature sensors are on the rear of
the tower.