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OMNIS
Product Manual
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Metrohm OMNIS Product Manual

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OMNIS Titration Module
Product manual
8.1002.8002EN / 2018-07-27
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Metrohm AG Ionenstrasse CH-9100 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com
OMNIS Titration Module
8.1002.8002EN / 2018-07-27
Product manual
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Technical Communication Metrohm AG CH-9100 Herisau techcom@metrohm.com
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.
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Table of contents

1 Overview 1
1.1 OMNIS Titration Module – Product description ................. 1
1.2 OMNIS Titration Module – Product versions ...................... 1
1.3 About the documentation ................................................... 2
1.4 Additional information ......................................................... 3
1.4.1 Accessories .............................................................................. 3
2 Safety 4
2.1 Product safety ....................................................................... 4
2.2 Hazard levels ......................................................................... 4
2.3 Warning symbols .................................................................. 5
2.4 Intended use ......................................................................... 6
Table of contents
2.5 Residual risks ........................................................................ 6
2.5.1 General dangers at the workplace ........................................... 6
2.5.2 Danger from electrical potential ............................................... 7
2.5.3 Danger from biological substances .......................................... 8
2.5.4 Danger from highly flammable substances ............................... 8
2.5.5 Danger from careless transport ................................................ 9
2.5.6 Danger from leakage ............................................................... 9
2.6 Responsibility of the operator ............................................. 9
2.7 Personnel requirement ....................................................... 10
3 Functional description 11
3.1 System overview ................................................................. 11
3.1.1 System – Signals .................................................................... 11
3.1.2 System – Interfaces ................................................................ 12
3.2 OMNIS Titration Module – Overview ................................ 13
3.2.1 Magnetic stirrer – Overview ................................................... 15
3.2.2 Magnetic stirrer with accessories – Overview ......................... 16
3.2.3 Dosing unit – Overview .......................................................... 17
3.2.4 Bottle unit – Overview ........................................................... 21
3.2.5 Measuring Module Analog – Overview .................................. 23
3.2.6 Measuring Module Digital – Overview ................................... 24
3.2.7 OMNIS product with a volumetric KF titration cell – Over-
view ...................................................................................... 25
3.3 OMNIS Titration Module - Function .................................. 26
3.3.1 Magnetic stirrer – Function .................................................... 26
3.3.2 Dosing unit – Function ........................................................... 26
3.3.3 Bottle unit – Function ............................................................ 27
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III
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Table of contents
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3.3.4 Measuring Module Analog – Functional description ............... 28
3.3.5 Measuring Module Digital – Functional description ................ 29
3.3.6 Karl Fischer titration cell – Function ........................................ 29
3.4 OMNIS Titration Module – Indicators ............................... 29
3.5 Magnetic stirrer – Indicators and controls ....................... 30
3.6 OMNIS Titration Module - Interfaces ............................... 31
3.7 Measuring Module Analog – Interfaces ........................... 32
3.8 Measuring Module Digital – Interfaces ............................ 33
4 Transport and storage 34
4.1 Checking the delivery ......................................................... 34
4.2 Storing the packaging ........................................................ 34
5 Installation 35
5.1 Installation by Metrohm .................................................... 35
5.2 Setting up the product ....................................................... 35
5.3 Mounting the cylinder unit ................................................ 36
5.4 Magnetic stirrer – Installing the accessories .................... 39
5.5 OMNIS system – Mounting the measuring module ......... 41
5.6 Measuring module – Plugging in the electrode cable ..... 43
5.7 OMNIS system – Mounting the electrode ........................ 44
5.8 OMNIS Titration Module – Mounting the volumetric
Karl Fischer titration cell .................................................... 47
5.9 OMNIS titration system – Mounting the bottle unit ....... 59
6 Initial start-up 61
6.1 Initial start-up by Metrohm ............................................... 61
7 Operation and control 62
7.1 Operation ............................................................................ 62
7.2 Refitting the cylinder unit .................................................. 62
7.2.1 Dismantling the cylinder unit ................................................. 62
7.2.2 Mounting the cylinder unit .................................................... 65
7.3 Magnetic stirrer – Operation ............................................. 68
7.3.1 Switching the stirrer on and off .............................................. 68
7.3.2 Setting the stirring rate .......................................................... 69
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IV
8 Maintenance 70
8.1 General maintenance ......................................................... 70
8.2 Maintenance agreement .................................................... 71
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9 Malfunctions and troubleshooting 88
10 Disposal 89
11 Technical specifications 90
Table of contents
8.3 Cleaning the product .......................................................... 72
8.3.1 Cleaning the OMNIS Liquid Adapter ...................................... 73
8.3.2 Dosing unit – Maintaining ..................................................... 75
8.3.3 Disassembling the cylinder unit .............................................. 75
8.3.4 Cleaning the cylinder unit ...................................................... 80
8.3.5 Cylinder unit – Cleaning the electrical contacts ....................... 82
8.3.6 Assembling the cylinder unit .................................................. 83
9.1 Troubleshooting .................................................................. 88
11.1 Ambient conditions ............................................................ 90
11.2 OMNIS Titration Module – Energy supply ........................ 90
11.3 OMNIS Magnetic Stirrer – Energy supply ......................... 90
11.4 OMNIS Measuring Module – Energy supply ..................... 90
11.5 OMNIS Titration Module – Dimensions ............................ 90
11.6 OMNIS Magnetic Stirrer – Dimensions ............................. 91
11.7 OMNIS Measuring Module – Dimensions ......................... 91
11.8 OMNIS Titration Module – Housing .................................. 91
11.9 OMNIS Magnetic Stirrer – Housing ................................... 92
11.10 OMNIS Measuring Module – Housing .............................. 92
11.11 OMNIS Titration Module – Connectors specifications .... 93
11.12 OMNIS Measuring Module Digital – Connectors specifi-
cations ................................................................................. 93
11.13 OMNIS Titration Module – Display specifications ........... 93
11.14 OMNIS Measuring Module Digital – Display specifica-
tions ..................................................................................... 94
11.15 OMNIS Measuring Module Analog – Measuring specifi-
cations ................................................................................. 94
11.16 OMNIS Titration Module – Liquid Handling specifica-
tions ..................................................................................... 95
11.17 Magnetic stirrer – Stirrer specifications ............................ 96
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1 Overview

1.1 OMNIS Titration Module – Product description

The OMNIS Titration Module is a titration module that is controlled by an OMNIS Titrator. The OMNIS Titration Module is equipped with the follow­ing functional units:
￭ Two plug-in positions at which a maximum of two measuring modules
can be fitted.
￭ One dosing unit with interchangeable cylinder units. ￭ One integrated magnetic stirrer, depending on the product version.

1.2 OMNIS Titration Module – Product versions

The product is available in the following versions:
Overview
Table 1
Art. no. Designation Version feature
2.1002.0010 OMNIS Titration Module Without magnetic stirrer
2.1002.0110 OMNIS Titration Module With integrated magnetic
Product versions
stirrer
The required numbers for the customer service can be found on the type plate (see example):
(01) = External article number
1
(240) = Metrohm article number
3
(21) = Serial number
2
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About the documentation
NOTE
Information on the accessories for the respective product version can be obtained either on the Internet at http://www.metrohm.com or via your regional Metrohm representative.

1.3 About the documentation

NOTE
Please read through this documentation carefully before putting the product into operation.
The documentation contains important information and warnings which you must follow in order to ensure safe operation of the prod­uct.
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Symbols and conventions
The following icons and formatting may appear in this documentation:
Cross-reference to figure legend
The first number refers to the figure number, the sec­ond to the product part in the figure.
Instruction step
Carry out these steps in the sequence shown.
Method Designations for names of parameters, menu items,
tabs and dialog windows in the software.
File ▶ New Menu or menu item
Work area / Properties
[Next] Button or key
Menu paths in order to arrive at a particular position in the software.
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1.4 Additional information

Additional information concerning the topic can be found:
￭ in the Software Help ￭ in the Metrohm information portal on the Internet https://
guide.metrohm.com

1.4.1 Accessories

Up-to-date information on the scope of delivery and optional accessories for your product can be found on the Internet. You can download this information using the article number as follows:
Downloading the accessories list
Enter https://www.metrohm.com/ into your Internet browser.
1
Enter the article number of the product (e.g. 2.1001.0010) into the
2
search field.
Overview
The search result is displayed.
Click on the product.
3
Detailed information regarding the product is shown on various tabs.
On the Included parts tab, click Download the PDF.
4
The PDF file with the accessories data is created.
NOTE
When you receive your new product, we recommend downloading the accessories list from the Internet, printing it out and keeping it for reference purposes.
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Product safety

2 Safety

2.1 Product safety

This product exhibited no flaws in terms of technical safety at the time it left the factory. To preserve this status and ensure non-hazardous opera­tion of the product, the following instructions must be observed carefully.

2.2 Hazard levels

The following warning messages indicate the severity of the danger and its possible effects.
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DANGER
Immediate danger of life
Irreversible injuries that will result in death.
Warns of dangerous situations or unsafe actions that will most cer­tainly cause severe injuries or death.
Lists measures to avoid hazard.
WARNING
Severe health hazards
Serious injuries that could result in death.
Warns of dangerous situations or unsafe actions that could result in serious injuries or death.
Lists measures to avoid hazard.
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CAUTION
Health hazards or severe property damage
Warns of dangerous situations or unsafe actions that could result in moderate injuries or considerable property damage.
Lists measures to avoid hazard.

2.3 Warning symbols

Make sure that any additional hazard symbols are marked on the product for your operation of the product.
The following warning symbols in the documentation and at hazard areas of the product point out hazard potentials:
– Warning of a hazard area
Safety
NOTE
Warning symbol on the product
If this warning symbol is on the product, read the respective docu­mentation prior to installation and initial start-up.
– Warning of electric shock from electrical potential
– Warning of danger of fire and explosion from highly flammable
substances and gases
– Warning of danger of poisoning and chemical burns from chemi-
cal hazardous substances
– Warning of danger of infection and poisoning from biological
hazardous substances
– Warning of risk of injury from high temperatures
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Intended use
– Warning of cut injuries from pieces of broken glass and/or sharp
edges
– Warning of risk of injury by laser radiation
– Warning of dangerous optical radiation

2.4 Intended use

Metrohm products are used for the analysis and handling of chemicals.
Usage therefore requires the user to have basic knowledge and experience in handling chemicals. Knowledge regarding the application of fire preven­tion measures prescribed for laboratories is also mandatory.
Adherence to this technical documentation and compliance with the maintenance specifications make up an important part of intended use.
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Any utilization in excess of or deviating from the intended use is regarded as misuse.
Specifications regarding the operating values and limit values of individual products are contained in the "Technical specifications" section, if relevant.
Exceeding and/or not observing the mentioned limit values during opera­tion puts people and components at risk. The manufacturer assumes no liability for damage due to non-observance of these limit values.
The EU declaration of conformity loses its validity if modifications are car­ried out on the products and/or the components.

2.5 Residual risks

2.5.1 General dangers at the workplace

Generally, the regulations and provisions of the regulatory institutions and authorities in the field of work apply.
The instructions regarding the following areas have to be followed when using the products:
￭ Work safety ￭ Handling mechanical installations ￭ Handling electricity ￭ Handling hazardous and environmentally damaging substances ￭ Handling hazardous and environmentally damaging liquids ￭ Disposing hazardous and environmentally damaging substances
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If they are not followed, this may result in:
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Safety
￭ Disturbing, injuring and/or killing of people ￭ Malfunction and/or damage to instruments and infrastructure ￭ Damage and/or contamination of the environment
WARNING
General dangers at workplace
If the safety measures are not followed, working in a laboratory bears a high risk of injury, which can endanger your life and health.
￭ Only professionally trained and qualified specialist personnel may
operate the products.
￭ Follow the applicable provisions concerning work safety and all
regulations on wearing protective clothing.
￭ Use suitable tools to perform your work. ￭ Check the fill level of waste bottles or waste canisters and analysis
vessels, and make sure they do not overflow.
￭ Use protective grounding when working with highly flammable
substances and gases.

2.5.2 Danger from electrical potential

WARNING
Electric shock from electrical potential
Risk of injury by touching live components or through moisture on live parts.
￭ Never open the housing of the instrument. ￭ Protect live parts (e.g. power supply unit, power cord, connection
sockets) against moisture.
￭ If you suspect that moisture has gotten into the instrument, dis-
connect the instrument from the energy supply. Then notify Met­rohm Service.
￭ Only personnel who have been issued Metrohm qualification may
perform service and repair work on electrical and electronic com­ponents.
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Residual risks

2.5.3 Danger from biological substances

If the product is used for biological hazardous substances, it must be marked in accordance with regulations.
In case of a return shipment to Metrohm or a Metrohm Service partner, the product or product component has to be decontaminated and the hazard symbol for biological hazardous substances must be removed. A declaration of decontamination must be enclosed.
WARNING
Danger of infection and poisoning from biological hazardous substances
Poisoning from toxins and/or infections from samples contaminated with microorganisms.
￭ Clean and disinfect contaminated surfaces. ￭ Wear protective equipment. ￭ Use exhaust equipment when working with vaporizing hazardous
substances.
￭ Dispose of biologically contaminated substances properly.
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2.5.4 Danger from highly flammable substances

WARNING
Danger of fire and explosion from highly flammable substances and gases
Burns from fire and/or injuries from explosions.
￭ Avoid ignition sources. ￭ Use protective grounding. ￭ Use exhaust equipment.
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2.5.5 Danger from careless transport

WARNING
Risk of injury from careless transport
Injuries from spilled chemical and/or biological substances, falling parts and pieces of broken glass.
￭ Remove loose parts (e.g. sample racks, sample beaker, bottles)
before transport.
￭ Remove liquids. ￭ Lift and transport the instrument with both hands on the base
plate.
￭ Lift and transport heavy instruments only according to instruc-
tions.

2.5.6 Danger from leakage

Safety
WARNING
Risk of injury by leakage
A risk of injury exists in connection with escaping liquids of leaking parts and/or connection elements.
￭ Replace leaking parts and connection elements without delay. ￭ Tighten loose connecting elements. ￭ Use environmentally-friendly methods to dispose of escaping liq-
uids.

2.6 Responsibility of the operator

￭ Eliminate defects or damage which impair operating safety without
delay.
￭ Eliminate malfunctions which could impair safety without delay. ￭ The rules, regulations and instructions listed in the present document
are not the only valid ones. Comply with the applicable statutory rules, government agency directives and regulations.
￭ Unauthorized modification of the products excludes any and all liability
on the part of the manufacturer for any damage resulting from this as well as for any consequential damage. No modifications, attachments or conversions which could impair safety may be carried out on the products without the approval of the manufacturer.
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Personnel requirement
￭ Spare parts must meet the technical requirements established by the
manufacturer. Original spare parts always meet these requirements.
￭ Personnel must be familiar with this safety-relevant information and it
must be available for consultation at all times.

2.7 Personnel requirement

Only qualified personnel may operate the present product.
Qualified personnel are people authorized by the safety responsible to carry out the necessary operations. They are capable of recognizing and avoiding possible dangers. These people are qualified due to their profes­sional training, experience and/or instruction. They know the relevant standards, laws, provisions, accident prevention regulations and the com­pany conditions.
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3 Functional description

3.1 System overview

3.1.1 System – Signals

Visual signals
All products and components of the system that are equipped with multi­color status displays indicate their respective status using colors and flash­ing patterns.
The meaning of the colors and flashing patterns is explained in the follow­ing table.
NOTE
Functional description
Use of the flashing patterns
Not all products and components use all of the flashing patterns illus­trated below.
However, the meaning of the flashing patterns is the same for all products and components.
Signal Meaning
LED lights up yellow System start or initialization
LED flashes yellow (slowly) Ready for connection setup or
locking
LED flashes yellow (fast) Connection setup started or
locking underway
LED lights up green Ready for operation
LED flashes green (slowly) In operation
LED flashes red (fast) Malfunction or error
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System overview

3.1.2 System – Interfaces

The system provides the following interfaces:
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Designation Abbrevia-
Symbol Use
tion
Metrohm Device Link MDL For connecting additional mod-
ules or products to a basic prod­uct.
Human Interactive Device HID For connecting an external con-
trol product.
Metrohm Solution Identification MSI For connecting the OMNIS Liq-
uid Adapter.
Local Area Network LAN For connecting the product to a
local network.
USB connector USB For connecting USB devices.
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3.2 OMNIS Titration Module – Overview

Functional description
Lid
1
Dosing drive
3
Platform
5
For chemical bottle.
Figure 1 OMNIS Titration Module – Front
Space for measuring modules
2
Magnetic stirrer
4
Optional, can be retrofitted.
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OMNIS Titration Module – Overview
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Figure 2 OMNIS Titration Module – Rear
Bottle holder
1
MSI connector
3
MSI = Metrohm Solution Identification. Con­nection socket for Liquid Adapter cable.
Cable guide
5
Bottom right.
Cable guide
7
On the side to the left. For rod stirrer cable or electrode cable.
Cable guide
2
On the side to the right. For Liquid Adapter cable.
MDL connector
4
MDL = Metrohm Device Link. Connection socket for the connecting cable to the basic unit.
Cable guide
6
Bottom left.
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3.2.1 Magnetic stirrer – Overview

Functional description
Stand attachment
1
Control bar
3
Figure 3 Magnetic stirrer – Overview
Stirring area
2
Status display
4
LED. Multi-colored
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OMNIS Titration Module – Overview

3.2.2 Magnetic stirrer with accessories – Overview

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Support rod
1
Clamping ring
3
Figure 4 Magnetic stirrer with accessories – Overview
Electrode holder
2
Control bar
4
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3.2.3 Dosing unit – Overview

Functional description
Distributor
1
With four ports
Dosing drive
3
Installed
Figure 5 Dosing unit – Overview
Cylinder unit
2
Available with various volumes
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OMNIS Titration Module – Overview
Figure 6 Dosing drive - Overview
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Status display
1
LED. Multi-colored
Twistlocks
3
For locking the cylinder unit
Contact pins
2
For communicating with the cylinder unit
Piston rod
4
For moving the piston
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2
3
5
6
7
1
4
8
3.2.3.1 Cylinder unit – Overview
Functional description
Distributor
1
With four ports for solutions
Housing
3
Centering tube
5
Piston
7
Figure 7 Cylinder unit – Overview
Cylinder top piece
2
Unlocking button
4
Cylinder
6
8
Data chip
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OMNIS Titration Module – Overview
Figure 8 Cylinder unit – Overview from above
The four ports of the cylinder unit are intended for the following uses:
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Table 2
Port Use Connecting or sealing with
1 Dosing Dosing tip
2 Filling the cylinder Chemical bottle
3 Not used Stopper
4 Not used Stopper
Use of the ports
The intended use of the ports can be changed in the OMNIS Software.
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3.2.4 Bottle unit – Overview

Functional description
OMNIS Liquid Adapter
1
Chemical bottle
3
Figure 9 Bottle unit
Bottle cap multi-use
2
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OMNIS Titration Module – Overview
3.2.4.1 OMNIS Liquid Adapter – Overview
Figure 10 OMNIS Liquid Adapter – Parts
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Cable
1
RFID reader
3
Tubing adapter
5
Part of 6.01600.xxx
3.2.4.2 Bottle cap multi-use – Overview
Status display
2
Aspiration tube
4
Part of 6.01600.xxx
Figure 11 Bottle cap multi-use, complete (6.01601.000)
Flip-top lid
1
￭￭￭￭￭￭￭￭
22
Aspiration tubing
2
Aspiration tubing (6.1819.020)
Page 31
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Functional description
RFID tag
3
RFID label for contact-free data transmission.
5 - 7 Absorption cartridge, complete
Absorption cartridge, complete (6.02701.000)
Absorption cartridge housing
6
PTFE sealing ring
4
PTFE sealing ring (6.02701.010)
Absorption cartridge lid
5
Absorption cartridge insert
7
(2 pieces)

3.2.5 Measuring Module Analog – Overview

Figure 12
INPUT 1
1
Connection socket for potentiometric sen­sors (green coding), temperature sensors (red coding) and polarizable sensors (blue coding)
REF
3
Connection socket for reference electrodes
Measuring Module Analog – Overview
INPUT 2
2
Connection socket for potentiometric sen­sors (green coding) and temperature sensors (red coding)
Fastening screws
4
Fastening screws, left and right. These fasten the measuring module in the housing and ground the electronics.
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23
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OMNIS Titration Module – Overview

3.2.6 Measuring Module Digital – Overview

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Figure 13 Measuring Module Digital – Overview
Fastening screws
1
Fastening screws, left and right. These fasten the measuring module in the housing and ground the electronics.
Connection socket
2
For dTrodes
24
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Page 33
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Functional description

3.2.7 OMNIS product with a volumetric KF titration cell – Overview

Support rod
1
KF titration vessel lid
3
Titration vessel
5
Figure 14 OMNIS product with an installed volumetric KF titration cell
Locking lever
2
Clamping ring
4
Control bar for stirrer
6
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25
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OMNIS Titration Module - Function

3.3 OMNIS Titration Module - Function

The OMNIS Titration Module is a module for carrying out titrations. It only works together with an instrument that has an electrical and a network connection.
The OMNIS Titration Module is equipped with the following functional units:
￭ Slots for a maximum of two measuring modules.
The Measuring Module Digital is used for connecting digital electrodes, the so-called dTrodes. The Measuring Module Analog is used for connecting analog electro­des.
￭ Dosing unit with an interchangeable cylinder unit. ￭ One magnetic stirrer, depending on the product version. ￭ Bottle unit with reagent detection. ￭ Cable guides
Cable guides are located at the rear and on the base of the OMNIS Titration Module. The OMNIS Liquid Adapter cable can be guided to the connection socket in the cable guide on the right-hand side. The cable of a rod stirrer can be guided in the lateral and bottom cable guides on the left-hand side to the connection socket at the rear of the instrument.
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3.3.1 Magnetic stirrer – Function

The magnetic stirrer ensures that the sample is very well mixed. An elec­trode holder with clamping ring can be fastened to its support rod. The electrode, the buret tip and a rod stirrer can be inserted into the electrode holder. Depending on the application, the support rod can also be used for mounting the KF titration cell.

3.3.2 Dosing unit – Function

Software controls can be used for accurate dosing of liquid volumes with the dosing unit.
The dosing unit is comprised of the following units:
￭ The dosing drive ￭ The cylinder unit
The dosing drive is permanently installed in the housing of the instrument. It is controlled via the OMNIS Software and is responsible for the accurate dosing of the solution.
If the cylinder unit is placed on top of the dosing drive, the dosing drive assumes responsibility for the following functions:
26
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Functional description
￭ Raising and lowering the piston:
Solution is aspirated if the piston is lowered. The cylinder fills up. Solution is dosed if the piston is raised. The cylinder empties.
￭ Rotating the cylinder:
The rotation of the cylinder controls which of the four ports the solu­tion flows through. The valve disk with an opening is located in the middle of the cylinder base. The distributor disk with four openings corresponding to the four ports of the distributor is located at the bottom in the cylinder attachment. The dosing drive rotates the cylinder by 90° stages so that the opening of the valve disk fits with an opening on the distributor disk. This results in a passage for the solution to the corresponding port of the distributor.
3.3.2.1
Cylinder unit – Function
The cylinder unit is an accessory set for the dosing unit in OMNIS instru­ments with dosing function.
The movements of the piston and the cylinder are controlled via the OMNIS Software.
An antidiffusion tip (6.1543.200) is part of the accessories of every cylin­der unit. The antidiffusion tip is used whenever the titration tip is immersed into the sample. The antidiffusion valve prevents the sample from diffusing into the tip.
If accurate dosing is important, then you can order a dosing tip (6.1543.100) as an alternative to the antidiffusion tip. The dosing tip must not immerse into the sample.
See also
Cylinder unit – Overview (Chapter 3.2.3.1, page 19)

3.3.3 Bottle unit – Function

The bottle unit contains the chemicals that are required for the analysis.
The bottle unit in an OMNIS system is comprised of the following ele­ments:
￭ Chemical bottle
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27
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OMNIS Titration Module - Function
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￭ OMNIS bottle cap
The OMNIS bottle cap fits on a chemical bottle with GL 45 thread. Suit­able adapters are available for chemical bottles with other threads. The green bottle cap multi-use is equipped with a writeable RFID tag. The RFID tag can be inscribed with information regarding the solution. The red bottle cap single-use is equipped with an RFID tag. The RFID tag contains manufacturer's information regarding the composition and concentration of the solution.
￭ OMNIS Liquid Adapter
The OMNIS Liquid Adapter has an RFID tag reader that transfers the data between the RFID tag of the bottle cap and the OMNIS Software.
See also
OMNIS Liquid Adapter – Functions (Chapter 3.3.3.1, page 28)
3.3.3.1
OMNIS Liquid Adapter – Functions
The basic principle
There is no fixed connection between the OMNIS Liquid Adapter and the chemical bottle that must be loosened when changing bottles. This means that you can transfer the OMNIS Liquid Adapter without difficulty from one bottle to another.
Liquid transfer
The liquid transfer is the responsibility of an aspiration tube installed in the OMNIS Liquid Adapter. When you place the OMNIS Liquid Adapter on the bottle, the aspiration tube presses on the aspiration tubing in the chemical bottle. A tightly sealed connection is made.
Contact-free data transmission
Information regarding the content of the chemical bottle is stored on an RFID tag on the bottle cap. The OMNIS Liquid Adapter has an RFID tag reader that reads this data.
The data cable fastened to the OMNIS Liquid Adapter transfers the infor­mation to the analyzer and to the software.

3.3.4 Measuring Module Analog – Functional description

The Measuring Module Analog is used as an interface for analog electro­des on an OMNIS Titrator or an OMNIS Titration Module.
The Measuring Module Analog contains the electronics necessary for the use of analog sensors. Analog electrodes and analog reference electrodes can be plugged into its connection sockets.
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28
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3.3.5 Measuring Module Digital – Functional description

The Measuring Module Digital is used as an interface for digital electrodes on an OMNIS Titrator or an OMNIS Titration Module.
The digital electrodes, the dTrodes, can be plugged into its connection socket.

3.3.6 Karl Fischer titration cell – Function

The Karl Fischer titration cell is a closed vessel for water content determi­nation according to Karl Fischer which is fastened to the support rod of the magnetic stirrer.
The Karl Fischer titration cell consists of a titration vessel (different variants exist) and a titration vessel lid (different variants with or without homoge­nizer (Polytron PT 1300 D) exist).
Seepage of moisture into the titration cell is prevented with seals and with the adsorber tube, which is filled with molecular sieve.
Functional description

3.4 OMNIS Titration Module – Indicators

Status display
1
Multi-colored
Figure 15
OMNIS Titration Module – Indicators
The status of the instrument is displayed with the status display (15-1) using different colors (see Chapter 3.1.1, page 11).
See also
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Magnetic stirrer – Indicators and controls
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System – Signals (Chapter 3.1.1, page 11)

3.5 Magnetic stirrer – Indicators and controls

Figure 16 Magnetic stirrer – Control bar
Status display
1
Multi-colored
Key for reducing the stirring rate
3
Reduce the stirring rate by one step.
Indicators
The status of the instrument is displayed with the status display Required
link is broken! Target id: NOT­FOUND_ID_7d935f2a63deaf5e0a9dd569502aec03-61e151306000d4a00 a9dd569530521bd-en-US(see Chapter 3.1.1, page 11).
Controls
The keys (16-2), (16-3) and (16-4) are used for the hardware-side opera­tion of the magnetic stirrer.
The most recently used stirring rate will be used again when the instrument is switched on.
NOTE
Stirrer on/off key
2
Switch the stirrer on and off.
Key for increasing the stirring rate
4
Increase the stirring rate by one step.
30
The current stirring rate is displayed in the software under Manual con­trol.
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NOTE
The stirrer can also be controlled via the software.
Other functions in the software
The following functions can be executed only with the OMNIS Software:
￭ Setting the stirring direction. ￭ Deactivating keys.
The magnetic stirrer can be operated only via the software.
￭ Switching over the keys for the rod stirrer.
The keys on the magnetic stirrer operate the rod stirrer.

3.6 OMNIS Titration Module - Interfaces

Functional description
Figure 17
MSI connector
1
MSI = Metrohm Solution Identification. Con­nection socket for Liquid Adapter cable.
OMNIS Titration Module - Interfaces
MDL connectors
2
MDL = Metrohm Device Link. Connection socket for connecting cable between OMNIS instruments.
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31
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Measuring Module Analog – Interfaces
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3.7 Measuring Module Analog – Interfaces

The Measuring Module Analog has 3 connection sockets for analog elec­trodes.
Connection socket INPUT 1
1
Connection socket REF
3
Figure 18 Measuring Module Analog – Interfaces and connectors
Connection socket INPUT 2
2
Connection socket INPUT 1 and INPUT 2
The connection sockets INPUT 1 and INPUT 2 are marked with colored circle segments.
The markings are indicating that only a certain type of electrode cable may be plugged into this connection socket:
Meaning of the colors:
red
The connector supports temperature sensors
blue The connector supports polarized sensors
green The connector supports potentiometric sensors
Connection socket REF
Reference electrodes can be plugged into the REF connection socket.
32
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3.8 Measuring Module Digital – Interfaces

The Measuring Module Digital has 1 connection socket for a digital elec­trode.
Functional description
Figure 19 Measuring Module Digital – Interfaces and connectors
Connection socket for digital electro-
1
des
Connection socket
The black marking around the connection socket indicates that only a cable of a digital electrode may be plugged in here.
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33
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Checking the delivery

4 Transport and storage

4.1 Checking the delivery

Immediately upon arrival of the merchandise, check the shipment against the delivery note to ensure completeness and absence of damage.

4.2 Storing the packaging

The product is supplied in extremely protective packaging together with the separately packed accessories. Keep this packaging, as only this ensures safe transportation of the product.
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34
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5 Installation

5.1 Installation by Metrohm

NOTE
Installation of the products
As a basic rule, the installation of the system and of the new products and modules is handled by trained and instructed specialists from the Metrohm Company and/or its representative.

5.2 Setting up the product

Installation
The product has been developed for operation indoors and may not be used in explosive environments.
Place the product in a location of the laboratory which is suitable for oper­ation and free of vibrations and which provides protection against corro­sive atmosphere and contamination by chemicals.
Observe the dimensions and weights of the individual products and mod­ules that are part of the complete system. You will find this information in the "Technical specifications" section.
Protect the product against excessive temperature fluctuations and direct sunlight.
The power cord and other connecting cables must not be replaced with impermissible cables.
The power cord, where available, or other cables connecting to control instruments must be accessible during operation.
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Mounting the cylinder unit

5.3 Mounting the cylinder unit

NOTE
Default settings in the OMNIS Software
Port 1 is defined as dosing port and Port 2 as fill port in the OMNIS Software default settings. The following instructions describe the default setting.
If required, the ports can also be used differently. If the ports are used differently from the default settings, the changes have to be entered into the OMNIS Software in Properties ▶ Specific data of the dos­ing unit.
NOTE
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Before you mount the cylinder unit, the dosing unit has to be moved into the exchange position.
The function for moving the dosing unit into the exchange position can be found in the OMNIS Software in Manual control.
Preparing the mounting
1
2
Mounting the cylinder unit
These instructions describe the default installation as defined in the OMNIS Software.
Start the Manual control of the dosing unit in the OMNIS Software.
Start the Exchange position function.
Observe the splash warning and carry out the function.
NOTE
36
Prerequisite
The dosing unit is in the exchange position.
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Installation
Accessories
￭ Wrench (6.2739.000)
Attaching the cylinder unit
￭ Rotate the cylinder unit until the marking
with the label UNLOCK is in line with the marking on the dosing drive.
￭ Set the cylinder unit down onto the two
twistlocks straight from above.
Locking the cylinder unit
￭ Rotate the cylinder unit to the left until it
stops. The marking with the label LOCK is an indi­cator.
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Mounting the cylinder unit
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Mounting the stoppers
￭ Screw a stopper (6.1446.010) in each of the
two ports 3 and 4.
￭ Firmly tighten the stoppers with the wrench
(6.2739.000).
Mounting the tubings
￭ Tighten an FEP tubing (6.1805.100) into
port 1. This tubing works as a dosing tubing. Tighten the other end to the dosing tip.
￭ Tighten the second FEP tubing (6.1805.100)
into port 2. This tubing works as a filling tubing. Tighten the other end to the OMNIS Liquid Adapter.
￭ Firmly tighten the screws with the wrench
(6.2739.000).
38
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5.4 Magnetic stirrer – Installing the accessories

Mounting the electrode holder
Accessories
￭ Support rod, 30 cm (6.2016.050) ￭ Clamping ring, 10 mm (6.2013.010) ￭ Electrode holder (6.02005.000)
Mounting the support rod
Screw the support rod onto the stand attach­ment .
Installation
Mounting the clamping ring
Push the clamping ring over the support rod with the indent facing upward.
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Magnetic stirrer – Installing the accessories
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Mounting the electrode holder
1. Press the green locking lever on the elec­trode holder.
2. Push the electrode holder over the support rod.
3. To fix in place, release the green locking lever at the desired height.
The electrode holder is fixed in place.
NOTE
The clamping ring is used as the lower stop for the electrode holder. The clamping ring prevents the electrode holder with the mounted electrode from being lowered too far.
1. Push the clamping ring under the elec­trode holder.
2. Rotate the clamping ring in such a way that the wedge on the electrode holder fits in the indent in the clamping ring.
3. Fix the clamping ring with the knurled screw in place at the desired height.
40
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Preparing the magnetic stirrer for operation
Placing beaker and stirring bar
Installation
1. Place a 16 mm (6.1903.020) or 25 mm (6.1903.030) PTFE stirring bar in the sam­ple beaker.
2. Place the sample beaker on the contact surface of the magnetic stirrer.

5.5 OMNIS system – Mounting the measuring module

Two measuring modules each can be installed in every OMNIS Titrator and in every OMNIS Titration Module.
Each measuring module must be screwed tightly into the instrument to ensure trouble-free operation. Proceed as follows:
Opening the lid
Open the lid of the titrator.
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41
Page 50
OMNIS system – Mounting the measuring module
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Removing the side parts
Carry out the following steps on both sides of the instrument.
1. Remove the two screws from above using the hex key.
2. Push the side covering upwards until it can be removed from the side.
3. Remove the side covering to the side.
Removing the fastening screws
The measuring module is supplied with screwed in fastening screws.
￭ Remove the two fastening screws from the
measuring module using the hex key.
Inserting the measuring module
Insert the measuring module into an empty slot. The slots are designated with 1 (rear) and 2 (front).
42
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Installation
Attaching the measuring module
Insert the fastening screws. Tighten the meas­uring module to the housing from both sides using the hex key.
Mounting the side parts
Carry out the following steps on both sides of the instrument.
1. Position the side covering from the side in an elevated position.
2. Insert the side covering into the guide rail and push it downwards.
3. Insert the two screws and tighten them from above using the hex key.

5.6 Measuring module – Plugging in the electrode cable

Plugging the electrode cable into the measuring module
1. Align the red dot on the plug with the groove on the connection socket of the measuring input.
2. Plug in the cable until you can feel it snap in.
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OMNIS system – Mounting the electrode
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NOTE
It should be easy to plug in the cable.
￭ Do not apply force if the plug cannot be
inserted easily!
￭ Rotate the plug to the right or left using
light pressure until it latches in the socket.
Guiding out the cable
1. Guide the cable out going under the bar.
2. Close the lid.

5.7 OMNIS system – Mounting the electrode

CAUTION
Risk of cuts from sharp edges
Cut injuries from pieces of broken glass and/or sharp edges.
￭ Handle glass parts (e.g. electrode, sample beaker) with care. ￭ Only use undamaged glass parts. ￭ Dispose of damaged glass parts immediately.
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Inserting the electrode in the electrode holder
Insert the electrode from above into the front opening of the electrode holder.
Installation
Push the green upper part of the electrode downwards until it stops. The green part of the electrode is flush with the lower edge of the electrode holder.
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OMNIS system – Mounting the electrode
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Unscrew and remove the protective cap from the electrode.
Plug in the plug of the electrode cable.
Observe the orientation (A).
46
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Screw the electrode cable tight.
Installation

5.8 OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell

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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
Setting up the volumetric KF titration cell
Figure 20 Preparing the volumetric KF titration cell
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KF titration vessel lid
1
(6.01405.010) or
for usage with homogenizer (6.01405.040)
Stirring bar (without homogenizer!)
3
16 mm (6.1903.020) or
25 mm (6.1903.030)
Assembling the volumetric KF titration cell
Select the KF titration vessel (20-2) of the required size and place a
1
suitable stirring bar (20-3) inside.
Tighten the corresponding KF titration vessel lid (20-1) to the KF titra-
2
tion vessel.
KF titration vessel
2
20 – 90 mL (6.01406.220) or
50 – 150 mL (6.01406.250)
NOTE
When doing so, ensure that the color marking on the KF titra­tion vessel aligns with the raised marking on the KF titration ves­sel lid.
48
The scale of the volumetric KF titration cell will thus face towards you.
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Installation
Figure 21 Volumetric KF titration cell (6.01405.010) – Volumetric KF
titration cell for use with homogenizer (6.01405.040)
M10 screw nipple
1
(6.02709.010)
Septum stopper (or spoon for paste)
3
Guide sleeve for homogenizer
5
Guide sleeve for Polytron PT 1300 D (6.02709.050), further information see sec­tion (see "Optional: Mounting the volumet-
ric KF titration cell for use with homogenizer on the OMNIS product (e.g. OMNIS Titra­tor)", page 57)
Preparing the volumetric KF titration cell
Insert the 3 screw nipples (21-1) in the M10 openings of the KF titra-
1
tion vessel lid.
Insert the 2 screw nipples (21-2) in the M12 openings of the KF titra-
2
tion vessel lid.
M12 screw nipple
2
(6.02709.030)
Stirring bar (without homogenizer!)
4
16 mm (6.1903.020) or
25 mm (6.1903.030)
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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
Equipping the volumetric KF titration cell
Figure 22 Volumetric KF titration cell – Equipping
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Dosing tip
1
(6.1543.110) with M8 tubing (6.1805.200)
Aspiration tip
3
(6.01543.000) with M8 tubing (6.1805.200)
Septum stopper
5
with inserted septum (6.02709.020),
stopper (6.02709.010) or
OMNIS spoon for paste (6.02711.000)
Prerequisites:
￭ The volumetric KF titration cell is set up (see "Setting up the volumetric
KF titration cell", page 48).
￭ The adsorber tube with lid (22-4) is filled with fresh molecular sieve,
see .
Insert the dosing tip (22-1) in the M10 screw nipple on the left
1
(21-1) and screw it tight.
The dosing tip should be located just above the stirring bar, but should not impede it.
Insert an M8 tubing in the M8 connector of the dosing tip (22-1) and
2
screw it tight.
Buret tip
2
(6.01543.120) with M6 tubing (6.1805.100)
Adsorber tube
4
(6.01406.010)
Double Pt electrode
6
(6.0338.100) with cable (6.02104.040)
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￭￭￭￭￭￭￭￭
Page 59
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Insert the buret tip (22-2) of the cylinder unit in the M10 screw nip-
3
ple in the middle (21-1) and screw it tight.
The antidiffusion valve of the buret tip should be located just above the stirring bar, but should not impede it.
Insert the M6 tubing in the M6 connector of the buret tip (22-2) and
4
screw it tight.
Insert the aspiration tip (22-3) in the M10 screw nipple on the right
5
(21-1) and screw it tight.
When solvent is aspirated, the end of the aspiration tip must touch the vessel base, but it must not inhibit the action of the stirring bar.
The aspiration tip can, if needed, be pulled out of the solvent.
Insert an M8 tubing in the M8 connector of the aspiration tip (22-3)
6
and screw it tight.
Insert the double Pt electrode (22-6) in the M12 screw nipple on the
7
left (21-2) and then tighten the screw nipple until it seals.
Screw an electrode cable with blue coding tightly onto the electrode
8
(22-6).
Insert the adsorber tube (22-4) in the M12 screw nipple on the right
9
(21-2) and then tighten the screw nipple until it seals.
Introduce the septum stopper (with septum inserted) into the front
10
opening (21-3) of the titration vessel lid.
Installation
Select a different insert if required:
￭ Stopper ￭ Spoon for paste
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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
Mounting the volumetric KF titration cell on the OMNIS product (e.g. OMNIS Titrator)
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Figure 23 Mounting the volumetric KF titration cell on the OMNIS product – Overview
Support rod
1
KF titration vessel lid
3
(6.01405.010)
KF titration vessel
5
20 – 90 mL (6.01406.220) or
50 – 150 mL (6.01406.250)
Locking lever on the KF titration vessel
2
lid
Clamping ring
4
Magnetic stirrer
6
NOTE
If you want to mount the volumetric KF titration cell on the OMNIS product for use with a homogenizer, you can find additional informa­tion under (see "Optional: Mounting the volumetric KF titration cell
for use with homogenizer on the OMNIS product (e.g. OMNIS Titra­tor)", page 57).
52
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Installation
Prerequisites:
￭ The support rod is mounted on the OMNIS product with the clamping
ring, see (see Chapter 5.4, page 39). The clamping ring is used as the lower stop for the KF titration vessel lid. Thus, the clamping ring ensures that the KF titration cell is always positioned at the same height and exactly in the center on the mag­netic stirrer.
￭ The OMNIS titration system is connected to the cylinder unit and all
parts are fully operational, see (see Chapter 5.9, page 59) and (see Chapter 5.3, page 36).
￭ The bottle caps are fully equipped and connected to the OMNIS Sol-
vent Module, see .
￭ The volumetric KF titration cell is fully equipped, see steps (see Chapter
5.8, page 47).
Press the green locking lever (23-2) on the KF titration vessel lid
1
(23-3).
Push the KF titration cell, comprising of (23-3) and (23-5), over the
2
support rod (23-1).
Push the KF titration cell down so that it is positioned approx. 1 mm
3
above the magnetic stirrer (23-6) and position it in the center of the magnetic stirrer.
To fix in place, release the green locking lever.
Push the clamping ring (23-4) under the KF titration vessel lid.
4
Rotate the clamping ring in such a way that the wedge on the KF titration vessel lid fits in the indent in the clamping ring.
Fix the clamping ring in place at the desired position with the knurled
5
screw.
The position of the KF titration cell is now fixed by the clamping ring.
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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
Mounting the joining elements for the volumetric KF titra­tion cell on the OMNIS product (e.g. OMNIS Titrator) and OMNIS Solvent Module
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Figure 24 Connecting the KF titration cell with the OMNIS product and OMNIS Solvent Module
M6 PTFE tubing from the fill port of
1
the cylinder unit to the titrant bottle
(6.1805.100)
M8 PTFE tubing between dosing tip
3
and reagent bottle (Solvent)
Dosing tip (6.1543.110) with M8 PTFE tub­ing (6.1805.200) leading to the reagent bot­tle (Solvent)
Electrode cable leading to measuring
5
module
Double Pt electrode (6.0338.100) with elec­trode cable (6.02104.040) leading to Meas­uring Module Analog
M8 PTFE tubing between aspiration tip
2
and waste bottle (Waste)
Aspiration tip (6.01543.000) with M8 PTFE tubing (6.1805.200) leading to waste bottle (Waste)
M6 PTFE tubing between buret tip and
4
dosing port 1 of cylinder unit
For adding the titrant via the buret tip (6.1543.200) with M6 PTFE tubing (6.1805.100) into the KF titration cell
PVC tubings from the bottles to the
6
OMNIS Solvent Module
(6.01804.210)
Prerequisites:
54
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Installation
￭ The adsorption cartridge is filled with molecular sieve, sealed tightly
and mounted to the OMNIS Solvent Module, see .
￭ The Siphon Breaker and the bottle cap are fully equipped and connec-
ted to the OMNIS Solvent Module, see and (see Chapter 5.9, page
59).
￭ The volumetric KF titration cell is fully equipped, see steps (see "Equip-
ping the volumetric KF titration cell", page 50).
1
Connecting the volumetric KF titration cell with the titrant
Insert the M6 PTFE tubing from the buret tip (24-4) into the corre­sponding connector of the cylinder unit and screw it tight, see (see Chapter 5.3, page 36).
2
Connecting the volumetric KF titration cell with the bottles
Plug the M8 PTFE tubing from the dosing tip (24-3) onto the M8 connector of the Siphon Breaker of the reagent bottle (Solvent) and screw it tight.
Plug the M8 PTFE tubing from the aspiration tip (24-2) onto the olive
3
of the ground-joint stopper SGJ 14/M8 on the GL 45 bottle cap of the waste bottle (Waste) and screw it tight.
4
Connecting the double Pt electrode with the electrode cable
Screw an electrode cable (24-5) with blue coding tightly onto the double Pt electrode.
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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
Connecting a double Pt electrode to the analog measuring module
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Figure 25 Measuring Module Analog – Interfaces
Connection socket INPUT 1
1
Connection socket REF
3
Prerequisites:
An electrode cable with blue coding is screwed tightly onto the double Pt electrode.
If applicable, mount an analog measuring module in the OMNIS
1
product, see (see Chapter 5.5, page 41).
Connect the electrode cable with blue coding (24-1) to the socket
2
INPUT 1(see "Connection socket INPUT 1 and INPUT 2", page 32),
see (see Chapter 5.6, page 43).
NOTE
Note that only the socket INPUT 1 can be used for KF titration, see blue marking!
Connection socket INPUT 2
2
56
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Installation
Optional: Mounting the volumetric KF titration cell for use with homogenizer on the OMNIS product (e.g. OMNIS Titra­tor)
Figure 26 Mounting the volumetric KF titration cell for use with homogenizer on the OMNIS
product – Overview
Holder for homogenizer
1
Holder for Polytron PT 1300 D (6.02008.010)
Polytron PT 1300 D
3
(2.1360.100) with dispersing aggregate
Locking lever on the KF titration vessel
5
lid
Spacer 35 mm
2
Spacer 65 mm
4
KF titration vessel lid for use with
6
homogenizer
(6.01405.040)
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OMNIS Titration Module – Mounting the volumetric Karl Fischer titration cell
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Support rod with mounted clamping
7
ring
Dispersing aggregate
9
125 mm (6.1912.000) or
157 mm (6.1912.010)
Make sure that no stirring bar is being used!
Prerequisites:
￭ The volumetric KF titration cell with KF titration vessel lid for use with
homogenizer is prepared, see steps (see "Preparing the volumetric KF titration cell", page 49) and fully equipped including guide sleeve (not tightened) for homogenizer, see steps (see "Equipping the volumetric KF titration cell", page 50).
￭ The KF titration cell with KF titration vessel lid for use with homoge-
nizer is mounted on the OMNIS product, see steps (see "Mounting the volumetric KF titration cell on the OMNIS product (e.g. OMNIS Titra­tor)", page 52).
NOTE
KF titration vessel
8
20 – 90 mL (6.01406.220) or
50 – 150 mL (6.01406.250)
Magnetic stirrer
10
Push the spacer 65 cm (26-4) over the support rod with the indent
1
facing downward.
While doing so, make sure that the wedge on the KF titration vessel lid fits in the indent on the spacer.
If you want to use the dispersing aggregate 157 mm (26-9), also
2
push the spacer 35 cm (26-2) over the support rod.
Push the holder for homogenizer (26-1) over the support rod.
3
Insert the homogenizer (Polytron PT 1300 D) (26-3) with mounted
4
dispersing aggregate (26-9) in the holder and at the same time insert it in the guide sleeve (21-5) for homogenizer in the KF titration vessel lid (26-6).
If the dispersing aggregate cannot be inserted into the guide sleeve easily, loosen the guide sleeve again.
Tighten the guide sleeve for homogenizer (21-5) until it seals.
5
58
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Connect the homogenizer handset (26-3) to the control instrument
6
of the homogenizer (Polytron PT 1300 D).
Connect the homogenizer (Polytron PT 1300 D) (26-3) with the
7
RS-232 cable to the PC.
Hint:
We recommend using the dispersing aggregates as follows:
￭ Dispersing aggregate 125 mm
– Applications with viscous samples – Samples with a diameter that is smaller than the diameter of the
aggregate
– Powders and salts that are difficult to dissolve
￭ Dispersing aggregate 157 mm
– Applications with solid samples – Samples with a diameter that is bigger than the diameter of the
aggregate
Installation

5.9 OMNIS titration system – Mounting the bottle unit

The bottle unit in an OMNIS system is comprised of the following ele­ments:
￭ Chemical bottle ￭ OMNIS bottle cap ￭ OMNIS Liquid Adapter
Several chemical manufacturers offer chemical bottles with an OMNIS bot­tle cap single-use. An OMNIS bottle cap multi-use is available for other commercially available chemical bottles. If the chemical bottle does not feature a red OMNIS bottle cap, replace the original lid of the chemical bottle with a bottle cap multi-use.
Mounting the bottle unit
Assemble the OMNIS Liquid Adapter.
1
Mount and connect the OMNIS Liquid Adapter.
2
If the chemical bottle is not sealed with a red OMNIS bottle cap sin-
3
gle-use,
￭ prepare an OMNIS bottle cap multi-use. ￭ Remove the original lid from the chemical bottle. ￭ Screw the OMNIS bottle cap multi-use onto the bottle.
￭￭￭￭￭￭￭￭
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OMNIS titration system – Mounting the bottle unit
￭ Lock the OMNIS Liquid Adapter with the chemical bottle.
4
￭ Place the chemical bottle on the platform.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
60
￭￭￭￭￭￭￭￭
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

6 Initial start-up

6.1 Initial start-up by Metrohm

NOTE
Initial start-up of the product
As a basic rule, the initial start-up of the system and of the new prod­ucts and modules is handled by trained and instructed specialists from the Metrohm Company and/or its representative.
Initial start-up
￭￭￭￭￭￭￭￭
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Page 70
Operation

7 Operation and control

7.1 Operation

NOTE
Operating via the control software
The product can be operated using the commands of the control software.
Additional information can be found in the software help .

7.2 Refitting the cylinder unit

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
The dosing unit can be equipped with cylinder units with different vol­umes.
If you want to fit your instrument with a different cylinder unit:
￭ Order the cylinder unit with the desired volume. ￭ Remove the mounted cylinder unit. ￭ Mount the new cylinder unit.
Please read the corresponding instructions before starting with the replacement.
See also
Dismantling the cylinder unit (Chapter 7.2.1, page 62)
Mounting the cylinder unit (Chapter 5.3, page 36)

7.2.1 Dismantling the cylinder unit

NOTE
Before you remove the cylinder unit, the cylinder must be emptied and the piston has to be moved into the exchange position.
62
The function to empty the cylinder and to move the piston into the exchange position can be found in the OMNIS Software in Manual control.
￭￭￭￭￭￭￭￭
Page 71
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Preparing the dismantlement
1
2
3
Removing the cylinder unit
Prerequisites
￭ The cylinder unit has been emptied. ￭ The piston is in the exchange position.
Operation and control
Start the Manual control of the dosing unit in the OMNIS Software.
Start the Empty function.
Observe the splash warning and carry out the function.
Start the Exchange position function.
Observe the splash warning and carry out the function.
Removing the tubing
￭ Unscrew the dosing tubing. ￭ Unscrew the filling tubing.
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Refitting the cylinder unit
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Removing the stoppers
Unscrew the two stoppers.
Unlocking the cylinder unit
1. Rotate the cylinder unit to the right as far as the UNLOCK position.
64
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Operation and control
Removing the cylinder unit
1. Raise the cylinder unit straight upwards.
See also
Cylinder unit – Overview (Chapter 3.2.3.1, page 19)

7.2.2 Mounting the cylinder unit

NOTE
Default settings in the OMNIS Software
Port 1 is defined as dosing port and Port 2 as fill port in the OMNIS Software default settings. The following instructions describe the default setting.
If required, the ports can also be used differently. If the ports are used differently from the default settings, the changes have to be entered into the OMNIS Software in Properties ▶ Specific data of the dos­ing unit.
NOTE
Before you mount the cylinder unit, the dosing unit has to be moved into the exchange position.
The function for moving the dosing unit into the exchange position can be found in the OMNIS Software in Manual control.
￭￭￭￭￭￭￭￭
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Refitting the cylinder unit
Preparing the mounting
1
2
Mounting the cylinder unit
These instructions describe the default installation as defined in the OMNIS Software.
Prerequisite
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Start the Manual control of the dosing unit in the OMNIS Software.
Start the Exchange position function.
Observe the splash warning and carry out the function.
NOTE
The dosing unit is in the exchange position.
Accessories
￭ Wrench (6.2739.000)
Attaching the cylinder unit
￭ Rotate the cylinder unit until the marking
with the label UNLOCK is in line with the marking on the dosing drive.
￭ Set the cylinder unit down onto the two
twistlocks straight from above.
66
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Operation and control
Locking the cylinder unit
￭ Rotate the cylinder unit to the left until it
stops. The marking with the label LOCK is an indi­cator.
Mounting the stoppers
￭ Screw a stopper (6.1446.010) in each of the
two ports 3 and 4.
￭ Firmly tighten the stoppers with the wrench
(6.2739.000).
￭￭￭￭￭￭￭￭
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Magnetic stirrer – Operation
Mounting the tubings
￭ Tighten an FEP tubing (6.1805.100) into
port 1. This tubing works as a dosing tubing. Tighten the other end to the dosing tip.
￭ Tighten the second FEP tubing (6.1805.100)
into port 2. This tubing works as a filling tubing. Tighten the other end to the OMNIS Liquid Adapter.
￭ Firmly tighten the screws with the wrench
(6.2739.000).

7.3 Magnetic stirrer – Operation

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
The magnetic stirrer can be operated in two different ways:
￭ manually at press of the buttons on the instrument
– (see Chapter 7.3.1, page 68) – (see Chapter 7.3.2, page 69)
￭ via the software

7.3.1 Switching the stirrer on and off

Switching the stirrer on and off
1
Switching on the stirrer
Press the key:
The stirrer begins stirring with the most recently used stirring rate.
2
Switching off the stirrer
NOTE
68
If the stirrer is running at a high stirring rate, we recommend to reduce the stirring rate before switch-off.
￭￭￭￭￭￭￭￭
Page 77
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Press the key once again:
The stirrer stops.
Alternatively, the stirrer can also be switched on and off in the software under Manual control.

7.3.2 Setting the stirring rate

The stirring rate can be adjusted in 15 steps.
Setting the stirring rate
Prerequisites
￭ The stirrer is switched on.
Proceed as follows:
1
Increasing the stirring rate in stages
Operation and control
Press the key repeatedly.
Each time the key is pressed, the stirring rate is increased by one step. The current stirring rate is displayed in the software under
Manual control.
2
Reducing the stirring rate
Press the key repeatedly until the desired stirring rate has been reached.
Each time the key is pressed, the stirring rate is reduced by one step. The current stirring rate is displayed in the software under Manual control.
Alternatively, the stirring rate can also be set in the software under Man-
ual control.
NOTE
The stirring direction can be set only in the software under Manual control.
￭￭￭￭￭￭￭￭
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General maintenance

8 Maintenance

8.1 General maintenance

The products require appropriate care. Excess contamination of the prod­ucts may result in functional disruptions and a reduction in the service life of the mechanics and electronics.
Only perform maintenance work that is described in this instruction. Con­tact the Metrohm service for further maintenance and repairing works.
Disconnect the product from the power grid prior to any maintenance and cleaning.
Remove spilled chemicals and solvents immediately. Protect the plug con­nections in particular against contamination.
NOTE
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
The product is protected by design measures from being penetrated by liquids.
CAUTION
Instrument damage due to removed covers
Damage of the instrument or malfunction by removing the housing covers.
￭ Never open the housing of the instrument when the power cord is
connected.
￭ There are no parts inside the housing which may be serviced or
replaced by the user, unless this is explicitly described.
￭ Only personnel who have been issued Metrohm qualification may
perform service and repair work on electric and electronic parts.
70
￭￭￭￭￭￭￭￭
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Maintenance
WARNING
Electric shock from electrical potential
Risk of injury by touching live components or through moisture on live parts.
￭ Never open the housing of the product. ￭ Protect live parts (e.g. power supply unit, power cord, connection
sockets) against moisture.
￭ If you suspect that moisture has gotten into the product, discon-
nect the product from the energy supply. Then notify Metrohm Service.
￭ Only personnel who have been issued Metrohm qualification may
perform service and repair work on electrical and electronic com­ponents.
WARNING
Risk of injury due to lack of safety shield
Risk of injury when working without mounted safety shields.
￭ Never operate instruments without safety shields. ￭ Before beginning work, make sure that all the safety shields are
mounted correctly and are operational.

8.2 Maintenance agreement

Maintenance of the product is best carried out as part of an annual service performed by specialist personnel from Metrohm. Shorter maintenance intervals may be necessary if you frequently work with caustic and corro­sive chemicals.
Metrohm Service offers every form of technical advice for maintenance and service of all Metrohm products.
￭￭￭￭￭￭￭￭
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Cleaning the product

8.3 Cleaning the product

WARNING
Danger of poisoning and chemical burns from chemical hazard­ous substances
Poisoning and/or chemical burns by contact with aggressive chemical substances.
￭ Use only detergents that do not cause any unwanted side reac-
tions with the materials to be cleaned.
￭ Clean contaminated surfaces. ￭ Wear protective equipment. ￭ Use exhaust equipment when working with vaporizing hazardous
substances.
￭ Dispose of chemically contaminated materials (e.g. cleaning mate-
rial) properly.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
WARNING
Electric shock from electrical potential
Risk of injury by touching live components or through moisture on live parts.
￭ Never open the housing of the product. ￭ Protect live parts (e.g. power supply unit, power cord, connection
sockets) against moisture.
￭ If you suspect that moisture has gotten into the product, discon-
nect the product from the energy supply. Then notify Metrohm Service.
￭ Only personnel who have been issued Metrohm qualification may
perform service and repair work on electrical and electronic com­ponents.
Cleaning the surfaces of the product
Prerequisites
￭ The product is disconnected from the power grid.
Clean the surfaces with a damp cloth.
1
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Maintenance
NOTE
If the suspicion arises that liquids have found their way into the product, disconnect the product from the power grid and con­tact your Metrohm Service.
NOTE
Water or ethanol can be used as a cleaning medium.
NOTE
The connectors at the rear of the product must only be cleaned with a dry cloth.

8.3.1 Cleaning the OMNIS Liquid Adapter

Cleaning the aspiration tube
1. Rinse the aspiration tube thoroughly under running water. Rub dry with a lint-free, damp cloth.
2. Check whether the sealing lip (1) and the sealing surface (2) are clean and intact.
If the sealing lip or the sealing surface of the aspiration tube can no longer be cleaned, mount a new aspiration tube.
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Cleaning the product
Cleaning the OMNIS Liquid Adapter
CAUTION
Instrument damage through inward seepage of liquid
Property damage to the instrument or malfunction through the inward seepage of liquids (e.g. when cleaning).
The instrument is not resistant to splash water. Water can seep into the interior during cleaning and cause damage (e.g. to the electron­ics).
￭ Do not clean the instrument under running water. ￭ Do not use a wash bottle to clean the instrument. ￭ Only wipe the instrument thoroughly with a damp cloth.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Wipe the OMNIS Liquid Adapter thoroughly from the outside with a damp cloth.
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Maintenance
1. In order to access the lowered part better, set the OMNIS Liquid Adapter on a table edge. Push the OMNIS Liquid Adapter down and keep it pushed down. The lowered part rises.
2. Thoroughly wipe the surface and the slot for the aspiration tube with a damp cloth.
3. If the interior of the slot is contaminated, wipe it with a moistened cotton bud.
4. Release the housing of the OMNIS Liquid Adapter.
Contamination with organic substances
If the OMNIS Liquid Adapter is contaminated with organic substances, clean it with ethanol, methanol and/or isopropanol.
NOTE
Do not use solvents that contain acetone to clean the OMNIS Liquid Adapter. Acetone will corrode the labels on the OMNIS Liquid Adapter.

8.3.2 Dosing unit – Maintaining

The replacement of the cylinder unit has to be carried out with the OMNIS Software. To safely replace the cylinder unit, the software must move the piston thrust rod into the exchange position.
The OMNIS Software provides the Empty, Exchange position and Pre- paring functions for replacing the cylinder unit. These functions can be found in the OMNIS Software in Manual control.

8.3.3 Disassembling the cylinder unit

Disassemble the cylinder unit as follows:
Disassembling the cylinder unit
Prerequisite
The cylinder unit has been removed from the dosing drive.
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CAUTION
Property damage caused by jammed cylinder unit
Damage caused by disassembling of a jammed cylinder unit. The damaged cylinder unit must be replaced.
￭ Do not use force to rotate the cylinder top piece. ￭ Follow the instructions for disassembling the cylinder unit.
Accessories
￭ Piston tongs (6.1546.030)
1. Press the unlocking button and hold it down.
2. Rotate the cylinder top piece to the right until it stops.
76
Remove the cylinder top piece. Set it aside.
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Maintenance
Remove the cylinder element.
Hold the black cylinder base. Pull the cylinder together with the piston out of the centering tube.
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Position the piston tongs at the piston stopper of the piston.
Let the sleeve of the piston tongs sink to the piston surface. Pull the piston out of the cylin­der with the plunger (yellow) of the piston tongs.
NOTE
Do not disconnect the cylinder from the cylinder base.
Fixing the jamming
The cylinder unit can jam if the valve disk and the distributor disk stick together.
How to detect jamming:
￭ The software displays the corresponding error message. ￭ It is difficult to rotate the cylinder top piece.
What causes jamming:
78
￭ Problematic reagents are used in the cylinder unit. ￭ The cylinder unit has not been used for a prolonged period.
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Maintenance
Fixing the jamming of the not attached cylinder unit
1
Soaking the cylinder unit
Place the jammed cylinder unit with the cylinder top piece facing down in warm water (possibly with a little dishwashing detergent) for a few minutes.
2
Removing the cylinder top piece
￭ Remove the cylinder unit from the water. ￭ Press the unlocking button and hold it down. ￭ Carefully rotate the cylinder top piece to the right.
If the cylinder top piece still cannot be removed easily, do not use force but continue to soak it in water.
If the error persists, call Metrohm Service or replace the entire cylinder unit.
Fixing the jamming of the attached cylinder unit
Remove the tubings and the stoppers.
1
In the OMNIS Software under Manual control, execute the Func-
2
tion Exchange position.
￭ As soon as the Function Exchange position has been executed
3
successfully, remove the cylinder unit and soak it in warm water
(see "Fixing the jamming of the not attached cylinder unit", page
79).
￭ If the Function Exchange position is not executed successfully,
proceed as follows.
Fill every port with deionized water or another corresponding solvent
4
with a pipette.
Allow the cylinder unit to stand for several hours or overnight.
5
Initialize the dosing unit in the OMNIS Software, if possible, or force
6
the valve to switch using the Function Filling or the Func­tion Empty.
If the error persists, call Metrohm Service or replace the entire cylinder unit.
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Cleaning the product

8.3.4 Cleaning the cylinder unit

CAUTION
Instrument damage from aggressive chemical hazardous sub­stances
Damage of the instrument or malfunction through contact with aggressive chemical substances.
￭ Clean up spilled liquids and solids immediately. ￭ Use protective grounding when working with highly flammable
chemical substances and gases.
￭ If you suspect that chemical substances have gotten into the
instrument, disconnect the instrument from the energy supply. Then, notify Metrohm Service.
Cleaning the housing and the centering tube
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Prerequisites:
The cylinder unit is disassembled .
Clean the cylinder unit housing with water.
1
Clean the centering tube with water.
2
Cleaning the cylinder and piston
Prerequisites:
The cylinder unit is disassembled .
1
Checking the cylinder and piston
Check the cylinder and the piston for the following defects:
￭ Are rough areas or scratches visible on the cylinder? ￭ Are scratches visible on the piston surface? ￭ Are unevennesses visible on the sealing lips of the piston?
If one of these defects is visible, replace the entire cylinder unit.
80
If the cylinder and the piston are OK, clean the cylinder and the pis­ton as follows.
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2
Cleaning the piston
￭ Use a cloth to gently degrease the piston. ￭ Clean the piston with liquid cleaning agent. ￭ Rinse the piston thoroughly with deionized water.
3
Cleaning the cylinder
￭ Clean the cylinder with liquid cleaning agent. ￭ Rinse the cylinder thoroughly with deionized water.
Cleaning the valve disk and distributor disk
The valve disk is located in the bottom of the cylinder top piece.
The distributor disk is positioned in the cylinder base.
NOTE
Maintenance
Do not remove the valve disk and the distributor disk!
1. Clean the cylinder top piece with water.
2. Clean the contact surface of the distribu­tor disk with ethanol.
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Cleaning the product
1. Clean the contact surface of the distribu­tor disk with ethanol.

8.3.5 Cylinder unit – Cleaning the electrical contacts

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Cleaning contaminated contacts
The cylinder unit has to be removed from the dosing drive to clean the contacts (see Chapter 7.2.1, page 62).
Cleaning the electrical contacts of the cyl­inder unit
￭ If the electrical contacts are only lightly con-
taminated, clean the electrical contacts with a cloth moistened with water.
￭ If the electrical contacts are heavily contami-
nated, add dishwashing detergent or etha­nol to the moist cloth and clean the electri­cal contacts.
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6.2803.010

8.3.6 Assembling the cylinder unit

Maintenance
Cleaning the electrical contacts of the dosing drive
Clean the electrical contacts on the dosing drive. Proceed in accordance with the proce­dure for the electrical contacts on the cylinder unit.
Checking the cylinder and piston
Check the cylinder and the piston for the following defects:
1
￭ Are rough areas or scratches visible on the cylinder? ￭ Are scratches visible on the piston surface? ￭ Are unevennesses visible on the sealing lips of the piston?
If one of these defects is visible, replace the entire cylinder unit.
Greasing and inserting the piston
Prerequisites:
￭ The cylinder and the piston are clean and in impeccable status.
Greasing the piston
NOTE
Grease only the edge of the piston.
The tip of the piston must not be greased.
Using your finger, carefully apply a trace of par­affin grease (6.02803.010) to the exterior of the sealing lips of the piston.
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Wipe off excess grease with a soft, lint-free cloth.
Inserting the piston
1. Place the cylinder base on the countertop.
2. Set the piston down loosely on the cylin­der.
Assembling the cylinder element
Attach the centering tube on the cylinder base. Observe the following while doing so:
￭ The piston stopper must fit through the
small opening.
￭ The protrusions of the centering tube must
fit into the recesses of the cylinder base.
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Mounting the housing
Maintenance
1. Set the green housing onto the centering tube.
2. Press the green housing onto the cylinder base.
The piston is pressed into the cylinder in a cen­tered position.
1. Remove the green housing again.
2. Place the cylinder top piece on the coun­tertop with the ports facing downwards.
3. Place the cylinder element on the cylinder top piece.
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Cleaning the product
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Rotate cylinder element in such a way that the markings on the centering tube and on the cyl­inder top piece are positioned above one another.
Attach the green housing, observe the follow­ing while doing so:
￭ The markings on the housing, on the cen-
tering tube and on the cylinder top piece must be positioned above one another.
￭ The housing must rest flush on the cylinder
top piece.
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Maintenance
Press the housing down and rotate it to the left until the unlocking lever snaps into place.
Turn the cylinder unit over and press it firmly against the countertop.
The piston is pressed into the correct position.
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Troubleshooting

9 Malfunctions and troubleshooting

9.1 Troubleshooting

Messages or malfunctions in the system are displayed in the control soft­ware and on the status display of the respective product component, if applicable.
￭ Messages will be displayed by the control software and describe mal-
functions on the instrument (e.g. jammed drive) or problems with the control (e.g. missing or invalid parameter). A message informs about the cause and the solution of a problem.
￭ Malfunctions have to be solved directly on the product. If applicable,
this can be done with the help of the control software (e.g. initializa­tion, move to defined position, etc.).
NOTE
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Additional information can be found in the context-sensitive software help or on https://guide.metrohm.com.
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10 Disposal

Disposal
This product is covered by European Directive, WEEE – Waste Electrical and Electronic Equipment.
The correct disposal of your old product will help to prevent negative effects on the environment and public health.
More details about the disposal of your old product can be obtained from your local authorities, from waste disposal companies or from your local dealer.
￭￭￭￭￭￭￭￭
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Ambient conditions
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭

11 Technical specifications

11.1 Ambient conditions

Nominal function range +5 °C - +45 °C at a maximum of 85%
humidity
Storage and transport –20 °C - +70 °C

11.2 OMNIS Titration Module – Energy supply

Nominal voltage
24 VDC

11.3 OMNIS Magnetic Stirrer – Energy supply

Nominal voltage
24 VDC internal

11.4 OMNIS Measuring Module – Energy supply

Power consumption
Energy transmission inductive coupling
max. 0.6 W

11.5 OMNIS Titration Module – Dimensions

Measurements
Width 142 mm
Height 358 mm
Depth
Without magnetic stirrer 284 mm
With magnetic stirrer 400 mm
Weight
Type
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Without magnetic stirrer 4.0 kg
With magnetic stirrer 4.7 kg

11.6 OMNIS Magnetic Stirrer – Dimensions

Measurements
Width 142 mm
Height 70 mm
Depth 116 mm
Weight 700 g

11.7 OMNIS Measuring Module – Dimensions

Technical specifications
Measurements
Width 105 mm
Height 31 mm
Depth 72 mm
Weight
Type
Analog 420 g
Digital 410 g

11.8 OMNIS Titration Module – Housing

Materials
Lid PET poly(ethylene tereph-
Back panel AW-5754 H12/H22 aluminum, coated
thalate)
Base 1.4301 high-grade steel
Enclosure PBT poly(butylene tereph-
thalate)
￭￭￭￭￭￭￭￭
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OMNIS Magnetic Stirrer – Housing
Front foils PET poly(ethylene tereph-
IP degree of protection IP 40
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
thalate), mat

11.9 OMNIS Magnetic Stirrer – Housing

Materials
Lid PBT poly(butylene tereph-
thalate)
Base chromium steel
Enclosure PBT poly(butylene tereph-
thalate)
Front foils PET poly(butylene tereph-
thalate), mat
IP degree of protection IP 40

11.10 OMNIS Measuring Module – Housing

Materials
Lid AW-5754 H12 / H22 aluminum, coated
Back panel PBT poly(butylene tereph-
Enclosure GD-ZnAl4Cu1 zinc die cast, nickel-
IP degree of protection IP 40
thalate)
plated
92
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