Metrohm OMNIS Titrator User manual

OMNIS Titrator
2.1001.0X20
Product manual
8.1001.8002EN / 2021-09-23

Metrohm AG
Ionenstrasse
CH-9100 Herisau
Switzerland
[phone]
[email protected]
www.metrohm.com
OMNIS Titrator
2.1001.0X20
Product manual
8.1001.8002EN /
2021-09-23

Technical Communication
Metrohm AG
CH-9100 Herisau
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.
Disclaimer
Deficiencies arising from circumstances that are not the responsibility of
Metrohm, such as improper storage or improper use, etc., are expressly
excluded from the warranty. Unauthorized modifications to the product
(e.g. conversions or attachments) exclude any liability on the part of the
manufacturer for resulting damage and its consequences. Instructions and
notes in the Metrohm product documentation must be strictly followed.
Otherwise, Metrohm's liability is excluded.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
OMNIS Titrator ￭￭￭￭￭￭￭￭ III
Table of contents
1 Overview 1
1.1 OMNIS Titrator – Product description ................................ 1
1.2 OMNIS Titrator – Product versions ..................................... 1
1.3 Symbols and conventions .................................................... 2
1.4 Further information .............................................................. 2
1.5 Accessories ............................................................................ 3
2 Safety 4
2.1 Intended use ......................................................................... 4
2.2 Responsibility of the operator ............................................. 4
2.3 Requirements for operating personnel ............................... 5
2.4 Safety instructions ................................................................ 5
2.4.1 Danger from electrical potential ............................................... 5
2.4.2 Danger from biological and chemical hazardous substances ..... 5
2.4.3 Danger from highly flammable substances ............................... 6
2.4.4 Danger from leaking liquids ..................................................... 6
2.4.5 Danger during transport of the product ................................... 7
2.5 Design of warning messages ............................................... 7
2.6 Meaning of warning signs ................................................... 8
3 Functional description 9
3.1 Single-workplace titration system – Overview ................... 9
3.2 Single-workplace titration system for volumetric Karl
Fischer titrations – Overview ............................................. 11
3.3 OMNIS Titrator – Overview ............................................... 12
3.3.1 Magnetic stirrer – Overview ................................................... 14
3.3.2 Magnetic stirrer with accessories – Overview ......................... 15
3.3.3 Dosing unit – Overview .......................................................... 16
3.3.4 Bottle unit – Overview ........................................................... 20
3.3.5 Measuring Module Analog – Overview .................................. 23
3.3.6 Measuring Module Digital – Overview ................................... 24
3.3.7 Measuring Module Conductivity – Overview .......................... 25
3.3.8 Volumetric Karl Fischer titration cell – Overview ..................... 26
3.4 OMNIS Titrator – Function ................................................. 27
3.4.1 Magnetic stirrer – Functional description ................................ 27
3.4.2 Dosing unit – Function ........................................................... 27
3.4.3 Bottle unit – Function ............................................................ 28
3.4.4 Measuring Module Analog – Functional description ............... 29
3.4.5 Measuring Module Digital – Functional description ................ 29

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ OMNIS Titrator
3.4.6 Volumetric Karl Fischer titration cell – Function ...................... 29
3.5 OMNIS main instrument – Indicators and controls ......... 30
3.6 System – Signals ................................................................. 31
3.7 OMNIS Titrator – Interfaces ............................................... 32
3.8 Measuring Module Analog – Interfaces ........................... 33
3.9 Measuring Module Digital – Interfaces ............................ 34
4 Delivery and packaging 35
4.1 Delivery ................................................................................ 35
4.2 Packaging ............................................................................ 35
5 Installation 36
5.1 Installation by Metrohm .................................................... 36
5.2 Setup location ..................................................................... 36
5.3 Mounting the electrode parking station .......................... 36
5.4 Attaching the cylinder unit OMNIS ................................... 38
5.5 Magnetic stirrer – Installing the accessories .................... 40
5.6 OMNIS Karl Fischer products – Replacing the adsorber
material ............................................................................... 43
5.7 Mounting the electrode ..................................................... 45
5.8 Mounting the measuring module ..................................... 48
5.9 Mounting the volumetric Karl Fischer titration cell ......... 52
5.10 OMNIS titration system – Mounting the bottle unit ....... 62
5.11 Connecting the sensor ....................................................... 62
5.12 Plugging in the power cord ............................................... 64
6 Start-up 66
6.1 Initial start-up by Metrohm ............................................... 66
7 Operation and control 67
7.1 Operation ............................................................................ 67
7.1.1 Switching on and off ............................................................. 67
7.2 Cylinder unit OMNIS – Operation ...................................... 68
7.2.1 Attaching the cylinder unit OMNIS ......................................... 69
7.2.2 Removing the cylinder unit OMNIS ........................................ 71
7.3 Magnetic stirrer – Operation ............................................. 74
7.3.1 Switching the magnetic stirrer on and off .............................. 74
7.3.2 Setting the magnetic stirrer .................................................... 75

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
OMNIS Titrator ￭￭￭￭￭￭￭￭ V
8 Maintenance 76
8.1 Maintenance ....................................................................... 76
8.2 Cleaning the product surface ............................................ 76
8.3 Storing the cylinder unit OMNIS ....................................... 77
8.4 Cleaning the cylinder unit OMNIS ..................................... 78
8.5 Cleaning the OMNIS Liquid Adapter ................................. 80
9 Troubleshooting 83
9.1 Forcing a shutdown ............................................................ 83
10 Disposal 84
11 Technical specifications 85
11.1 Ambient conditions ............................................................ 85
11.2 OMNIS Titrator – Energy supply ........................................ 85
11.3 Magnetic stirrer – Energy supply ...................................... 85
11.4 Measuring module – Energy supply .................................. 86
11.5 OMNIS Titrator – Dimensions ............................................ 86
11.6 Magnetic stirrer – Dimensions ........................................... 86
11.7 Measuring module – Dimensions ...................................... 87
11.8 Housing ............................................................................... 87
11.9 Magnetic stirrer – Housing ................................................ 87
11.10 Measuring module – Housing ............................................ 88
11.11 OMNIS Titrator – Connectors specifications .................... 88
11.12 Measuring Module Analog – Connectors specifica-
tions ..................................................................................... 89
11.13 Measuring Module Digital – Connector specifications .... 90
11.14 Measuring Module Conductivity – Connector specifica-
tions ..................................................................................... 90
11.15 Display specifications ......................................................... 91
11.16 Measuring Module Analog – Display specifications ........ 91
11.17 Measuring Module Digital – Display specifications ......... 91
11.18 Measuring Module Conductivity – Display specifica-
tions ..................................................................................... 91
11.19 Measuring Module Analog – Measuring specifications .. 91
11.20 Measuring Module Conductivity – Measurement speci-
fications ............................................................................... 93

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
VI ￭￭￭￭￭￭￭￭ OMNIS Titrator
11.21 OMNIS Titrator – Liquid Handling specifications ............ 94
11.22 Magnetic stirrer – Specifications ....................................... 94

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Overview
￭￭￭￭￭￭￭￭ 1
1 Overview
1.1 OMNIS Titrator – Product description
The OMNIS Titrator is the central instrument of an OMNIS titration system.
The OMNIS Titrator is responsible for the energy supply to all of the mod-
ules in the titration system and for communication between the titration
system and the OMNIS Software. The scope of the functions of the
OMNIS Titrator is defined in the selected function license.
1.2 OMNIS Titrator – Product versions
The product is available in the following versions:
Table 1 Product versions
Article number Designation Magnetic stirrer Function license
2.1001.0010 OMNIS Titrator without individual
2.1001.0020 OMNIS Titrator with individual
2.1001.0110 OMNIS Basic Titrator without Basic
2.1001.0120 OMNIS Basic Titrator with Basic
2.1001.0210 OMNIS Advanced
Titrator
without Advanced
2.1001.0220 OMNIS Advanced
Titrator
with Advanced
2.1001.0310 OMNIS Professional
Titrator
without Professional
2.1001.0320 OMNIS Professional
Titrator
with Professional
Information on function licenses is available on the Metrohm website or
from the regional Metrohm representative.
The article number and serial number for identifying the product can be
found on the type plate:

Symbols and conventions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭
1(01) = Article number in accordance
with GS1 standard
2(21) = Serial number
3(240) = Metrohm article number 4Certification
5Certification 6Technical specifications
1.3 Symbols and conventions
The following formatting may appear in the documentation:
Cross-reference to figure legend
The first number refers to the figure number. The
second number refers to the product part in the fig-
ure.
Instruction step
Numbers indicate the order of the instructions steps.
Method Names of parameters, menu items, tabs and dialogs
File ▶ New Menu path
[Continue] Button or key
1.4 Further information
The Metrohm Knowledge Base https://guide.metrohm.com always pro-
vides the current version of this document. Further instructions, leaflets,
release notes etc. may be available, depending on the product. You can
directly access the required information or the associated PDF document
using the full-text search function and filters.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Overview
￭￭￭￭￭￭￭￭ 3
1.5 Accessories
Up-to-date information on the scope of delivery and on optional accesso-
ries can be found on the Metrohm website. Download this information as
follows:
Downloading the accessories list
1Go to https://www.metrohm.com.
2Enter the article number of the product (e.g. 2.1001.0010) into the
search field.
The search result is displayed.
3Click on the product.
Detailed information regarding the product is shown on various tabs.
4On the Included parts tab, click the link to download the PDF.
The PDF file with the accessories data is loaded.
Metrohm recommends downloading the accessories list from the
Internet and keeping it for reference purposes.

Intended use ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭
2 Safety
2.1 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 preven-
tion 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.
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 opera-
tion 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 as soon as modifications
are carried out on the products and/or the components.
2.2 Responsibility of the operator
The operator must ensure that basic regulations on occupational safety
and accident prevention in chemical laboratories are observed. The opera-
tor has the following responsibilities:
￭Instruct personnel in the safe handling of the product.
￭Train personnel in the use of the product according to the user docu-
mentation (e.g. install, operate, clean, eliminate faults).
￭Train staff on basic occupational safety and accident prevention regula-
tions.
￭Provide personal protective equipment (e.g. protective glasses, gloves).
￭Provide suitable tools and equipment to carry out the work safely.
The product may be used only when it is in perfect condition. The follow-
ing measures are required to ensure the safe operation of the product:
￭Check the condition of the product before use.
￭Remedy defects and malfunctions immediately.
￭Maintain and clean the product regularly.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Safety
￭￭￭￭￭￭￭￭ 5
2.3 Requirements for operating personnel
Only qualified personnel may operate the product. Qualified personnel are
persons who meet the following requirements:
￭Basic regulations on occupational safety and accident prevention for
chemical laboratories are known and complied with.
￭Knowledge of handling hazardous chemicals is present. Personnel have
the ability to recognize and avoid potential dangers.
￭Knowledge regarding the application of fire prevention measures for
laboratories is available.
￭Safety-relevant information is communicated and understood. The per-
sonnel can operate the product safely.
￭The user documentation has been read and understood. The personnel
operate the product according to the instructions in the user documen-
tation.
2.4 Safety instructions
2.4.1 Danger from electrical potential
Contact with electrical potential can cause serious injuries or death. To
avoid danger from electrical potential, observe the following:
￭Operate the product only if it is in perfect condition. The housing must
also be intact.
￭Only use the product with the covers fitted. If covers are damaged or
missing, disconnect the product from the energy supply and contact
the regional Metrohm service representative.
￭Protect live components (e.g. power supply unit, power cord, connec-
tion sockets) against moisture.
￭Always have maintenance work and repairs on electrical components
carried out by a regional Metrohm service representative.
￭Disconnect the product from the energy supply immediately if at least
one of the following cases occurs:
– The housing is damaged or open.
– Live parts are damaged.
– Moisture penetrates.
2.4.2 Danger from biological and chemical hazardous substances
Contact with biological hazardous substances may cause poisoning from
toxins or infections from microorganisms. Contact with aggressive chemi-
cal substances may cause poisoning or chemical burns. To avoid danger
from biological or chemical hazardous substances, observe the following:

Safety instructions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭
￭Label the product according to regulations if it is used for substances
that have a potential for chemical hazards and are generally subject to
the Hazardous Substances Ordinance.
￭Wear personal protective equipment (e.g. protective glasses, gloves).
￭Use exhaust equipment when working with vaporizing hazardous sub-
stances.
￭Dispose of hazardous substances in accordance with regulations.
￭Clean and disinfect contaminated surfaces.
￭Only use detergents that do not cause any unwanted side reactions
with the materials to be cleaned.
￭Dispose of chemically contaminated materials (e.g. cleaning material) in
accordance with regulations.
￭Proceed as follows in case of a return shipment to Metrohm AG or a
regional Metrohm representative:
– Decontaminate the product or product component.
– Remove the labeling for hazardous substances.
– Create a declaration of decontamination and enclose it with the
product.
2.4.3 Danger from highly flammable substances
Using highly flammable substances or gases may cause fires or explosions.
To avoid danger from highly flammable substances, observe the following:
￭Avoid ignition sources.
￭Use protective grounding.
￭Use exhaust equipment.
2.4.4 Danger from leaking liquids
Leaking liquids may cause injuries and may damage the product. To avoid
danger from leaking liquids, observe the following:
￭Check the product and its accessories for leakages and loose connec-
tions.
￭Replace leaking parts and connecting elements without delay.
￭Tighten loose connecting elements.
￭Do not loosen tubing connections under pressure.
￭Do not remove aspiration tubing under pressure.
￭Carefully pull the ends of the tubing out of the containers.
￭Carefully let liquids from tubing drain into suitable containers.
￭Insert the buret tips completely into the containers.
￭Remove and dispose of leaked liquids in accordance with regulations.
￭If you suspect that liquid has penetrated the instrument, disconnect the
instrument from the energy supply. Then have the instrument checked
by a regional Metrohm service representative.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Safety
￭￭￭￭￭￭￭￭ 7
2.4.5 Danger during transport of the product
Chemical or biological substances may be spilled during the transport of
the product. Parts of the product may fall down or may be damaged.
There is a risk of injury from chemical or biological substances and pieces
of broken glass. To ensure safe transport, observe the following:
￭Remove loose parts (e.g. sample racks, sample vessels, bottles) before
transport.
￭Remove liquids.
￭Lift and transport the product with both hands on the base plate.
￭Lift and transport heavy products only according to instructions.
2.5 Design of warning messages
There are 4 hazard levels for warning messages. The following signal
words are used for classifying the hazard levels in warning messages:
￭DANGER indicates a hazardous situation which, if not avoided, will
result in serious injury or death.
￭WARNING indicates a hazardous situation which, if not avoided,
could result in serious injury or death.
￭CAUTION indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
￭NOTICE indicates a hazardous situation which, if not avoided, could
result in property damage.
Warning messages differ in design (color and warning sign) depending on
the hazard level:
DANGER
Type and source of danger
Consequences when not observing the notice: An irreversible injury
that may result in death is very probable.
￭Measures to avoid the danger
WARNING
Type or source of danger
Consequences when not observing the notice: A serious injury that
may result in death is probable.
￭Measures to avoid the danger
CAUTION
Type or source of danger
Consequences when not observing the notice: A minor to moderate
injury is probable.
￭Measures to avoid the danger

Meaning of warning signs ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭
2.6 Meaning of warning signs
This documentation uses the following warning signs:
Table 2 Warning sign according to ISO 7010
Warning sign Meaning
General warning sign
Warning of electrical voltage
Warning of hand injuries
Warning of sharp object
Warning of hot surface
Warning of biological hazard
Warning of toxic materials
Warning of flammable materials
Warning of corrosive substances
Warning of optical radiation
Warning of laser beams
Depending on the intended use of the product, the corresponding warn-
ing sign stickers must be placed on the product.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Functional description
￭￭￭￭￭￭￭￭ 9
3 Functional description
3.1 Single-workplace titration system – Overview
Figure 1 Single-workplace titration system – Front
1FEP tubing 2Cylinder unit
3Measuring module 4Electrode cable
5Electrode 6Antidiffusion tip
7Support rod 8Electrode holder
9Clamping ring 10 Stirring bar
11 Sample beaker

Single-workplace titration system – Overview ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭
Figure 2 Single-workplace titration system – Rear
1OMNIS Liquid Adapter 2Bottle cap multi-use
3Chemical bottle 4Bottle holder

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Functional description
￭￭￭￭￭￭￭￭ 11
3.2 Single-workplace titration system for volumetric
Karl Fischer titrations – Overview
Figure 3 Single-workplace titration system for volumetric Karl Fischer titrations
1Measuring Module Analog
installed
2Cylinder unit
Metrohm recommends 10 mL cylinder units
for Karl Fischer titrations.
3Chemical bottle (titrant)
with OMNIS Liquid Adapter
4Karl Fischer titration cell (volumetric)
5Support rod
with mounted clamping ring
6OMNIS Titrator
with magnetic stirrer
7OMNIS Solvent Module 8Chemical bottle (Solvent)
with Siphon Breaker
9Chemical bottle (Waste)
with overflow protection

OMNIS Titrator – Overview ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭
3.3 OMNIS Titrator – Overview
Figure 4 OMNIS Titrator – Front
1Lid 2Space for measuring modules
3Dosing drive 4Magnetic stirrer
5Platform
For chemical bottles