Metrohm Eco Titrator User manual

Eco Titrator
Product manual
8.1008.8001EN / 2021-08-27

Metrohm AG
Ionenstrasse
CH-9100 Herisau
Switzerland
[phone]
[email protected]
www.metrohm.com
Eco Titrator
Firmware version 57.1008.0011 or higher
Product manual
8.1008.8001EN /
2021-08-27

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
￭￭￭￭￭￭￭￭ III
Table of contents
1 Overview 1
1.1 Product description .............................................................. 1
1.2 Product versions ................................................................... 2
1.3 Symbols and conventions .................................................... 3
1.4 Additional information ......................................................... 3
1.5 Accessories ............................................................................ 3
2 Safety 5
2.1 Intended use ......................................................................... 5
2.2 Responsibility of the operator ............................................. 5
2.3 Requirements for operating personnel ............................... 6
2.4 Safety instructions ................................................................ 6
2.4.1 Danger from electrical potential ............................................... 6
2.4.2 Danger from biological and chemical hazardous substances ..... 6
2.4.3 Danger from highly flammable substances ............................... 7
2.4.4 Danger from leaking liquids ..................................................... 7
2.4.5 Danger during transport of the product ................................... 8
2.5 Design of warning messages ............................................... 8
2.6 Meaning of warning signs ................................................... 9
3 Functional description 11
3.1 System overview ................................................................. 11
3.1.1 Signals ................................................................................... 11
3.1.2 Interfaces and connectors ...................................................... 11
3.2 Eco Titrator – Overview ..................................................... 13
3.2.1 Dosing unit ............................................................................ 17
3.2.2 Bottle unit ............................................................................. 20
3.3 Function ............................................................................... 20
3.3.1 Magnetic stirrer ..................................................................... 20
3.3.2 Dosing unit ............................................................................ 20
3.4 Indicators and controls ...................................................... 21
3.5 Interfaces and connectors ................................................. 22
3.6 Remote interface ................................................................ 23
3.7 Remote control ................................................................... 25
3.8 Arithmetic algorithms ........................................................ 27

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭
4 Delivery and packaging 30
4.1 Delivery ................................................................................ 30
4.2 Packaging ............................................................................ 30
5 Installation 31
5.1 Setup location ..................................................................... 31
5.2 Preparing the assembly ...................................................... 31
5.3 Switching the instrument on and off ................................ 33
5.4 Initial assembly of the cylinder unit .................................. 34
5.5 Mounting the support rod ................................................. 36
5.6 Preparing the bottle unit ................................................... 37
5.7 Mounting the tubing connections .................................... 38
5.8 Mounting the electrode ..................................................... 39
6 Start-up 40
6.1 Switching the instrument on and off ................................ 40
6.2 Setting the language, date and time ................................ 41
6.3 Setting the dialog type ...................................................... 42
7 Operation and control 44
7.1 Display elements and controls .......................................... 44
7.2 Switching the instrument on and off ................................ 45
7.3 User interface ...................................................................... 46
7.3.1 Formula editor ....................................................................... 50
7.4 Manual control ................................................................... 53
7.4.1 Manual control – Dosing ....................................................... 54
7.4.2 Manual control – Measurement ............................................. 56
7.4.3 Exchanging the cylinder unit .................................................. 57
7.4.4 Preparing the buret (PREP) ..................................................... 60
7.4.5 Operating the magnetic stirrer ............................................... 60
7.5 Methods .............................................................................. 62
7.5.1 Using and managing methods ............................................... 63
7.6 Sample data ........................................................................ 69
7.6.1 Sample series ......................................................................... 71
7.7 System – Configuration ...................................................... 75
7.7.1 System – Settings ................................................................... 76
7.7.2 Managing sensors ................................................................. 79
7.7.3 Managing solutions ............................................................... 82
7.7.4 Managing common variables ................................................. 85
7.7.5 Managing external devices .................................................... 87

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
￭￭￭￭￭￭￭￭ V
7.7.6 System – File management .................................................... 88
7.7.7 Instrument diagnosis ............................................................. 92
7.7.8 Ethernet settings .................................................................... 93
7.7.9 Service – Brief description ...................................................... 93
7.7.10 Changing the password ......................................................... 93
7.7.11 COM port settings ................................................................. 94
7.8 Carrying out a pH calibration ............................................ 96
7.9 Carrying out the determination ........................................ 97
7.10 Results ............................................................................... 100
7.11 Printing reports ................................................................ 103
7.12 Parameters ........................................................................ 105
7.12.1 Dynamic equivalence point titration (DET) ............................ 106
7.12.2 Monotonic equivalence point titrations (MET) ...................... 126
7.12.3 Endpoint titrations (SET) ....................................................... 145
7.12.4 pH calibration (CAL) ............................................................. 161
8 Maintenance 167
8.1 Maintenance ..................................................................... 167
8.2 Cleaning the product surface .......................................... 167
8.2.1 Performing maintenance on the cylinder unit ....................... 168
8.2.2 Mounting the cylinder unit .................................................. 172
8.3 Displaying system data .................................................... 173
8.4 Resetting the system ........................................................ 174
9 Troubleshooting 176
10 Disposal 177
11 Technical specifications 178
11.1 Ambient conditions .......................................................... 178
11.2 Energy supply ................................................................... 178
11.3 Dimensions ........................................................................ 179
11.4 Housing ............................................................................. 179
11.5 Connectors specifications ................................................ 180
11.6 Display specifications ....................................................... 181
11.7 Operation specifications .................................................. 181
11.8 Measurement specifications ............................................ 182
11.9 Stirrer specifications ......................................................... 183
11.10 Liquid handling specifications ......................................... 183

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Overview
￭￭￭￭￭￭￭￭ 1
1 Overview
1.1 Product description
The Eco Titrator is a titrator for volumetric titrations for universal use that
is equipped with the following functional units:
￭Built-in magnetic stirrer
￭Dosing unit with exchangeable cylinder unit
Methods can be created and saved on the instrument. The methods can
be exported to and imported from a connected USB flash drive. This
allows to copy methods from one instrument to another.
Titration modes
The following titration modes are supported:
￭DET
￭MET
￭SET
Calibration mode
The CAL calibration mode is used to calibrate the electrode.
Connectors
The instrument is equipped with the following connectors:
￭USB 1 and USB 2
￭Ethernet
￭Remote
￭24 VDC Power OUT
￭24 VDC Power IN
￭Ind
￭Ref
￭Temp
￭Pol

Product versions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭
1.2 Product versions
The product is available in the following versions:
Table 1 Product versions
Art. no. Designation Version feature
2.1008.0010 Eco Titrator with magnetic stirrer
2.1008.1010 Eco Titrator Acid/Base with magnetic stirrer
2.1008.2010 Eco Titrator Salt with magnetic stirrer
2.1008.3010 Eco Titrator Oil with magnetic stirrer
2.1008.4010 Eco Titrator Redox with magnetic stirrer
The required numbers for the customer service can be found on the type
plate (see example):
Figure 1 Type plate (example)
1(01) = External article number 2(21) = Serial number
3(240) = Metrohm article number
NOTICE
Information on the accessories for the respective product version can
be obtained either on the Internet at http://www.metrohm.com or
from your regional Metrohm representative.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Overview
￭￭￭￭￭￭￭￭ 3
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 dialog
windows
File ▶ New Menu path
[Continue] Button or key
1.4 Additional information
Additional information concerning the topic can be found:
￭in the Metrohm information portal on the Internet
https://guide.metrohm.com
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.

Accessories ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭
The PDF file with the accessories data is loaded.
NOTICE
Metrohm recommends downloading the accessories list from the
Internet and keeping it for reference purposes.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Safety
￭￭￭￭￭￭￭￭ 5
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.

Requirements for operating personnel ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭
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
￭￭￭￭￭￭￭￭ 7
￭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.

Design of warning messages ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭
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

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Safety
￭￭￭￭￭￭￭￭ 9
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
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

Meaning of warning signs ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭
Warning sign Meaning
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
￭￭￭￭￭￭￭￭ 11
3 Functional description
3.1 System overview
3.1.1 Signals
The status display uses flashing patterns to display the operating status of
the instrument.
Table 3 Status display
Signal Flashing pat-
tern
Meaning
LED lights up
green
Ready for operation
LED flashes
green (slowly)
In operation / Waiting
LED flashes
green (fast)
Malfunction or error
The status indicator uses colors to display the operating status of the
instrument.
Table 4 Status indicator
Signal Color Meaning
Green Ready for operation
Orange In operation
Yellow Waiting
Red Malfunction or error
3.1.2 Interfaces and connectors
The instrument provides the following interfaces and connectors.
Table 5 Interfaces
Designation Type Use
USB 1 USB Connector for USB devices
USB 2 USB Connector for USB devices

System overview ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭
Designation Type Use
Ethernet RJ-45 Connector for RS-232 instrument
server
Remote D-Sub Connector for devices with remote
interface
Power OUT Mini DIN
Power IN Mini DIN Connector for the energy supply
Ind Socket F High-ohm measuring input for pH
electrodes and redox electrodes
Ref Socket B, 4 mm High-ohm measuring input for
separate reference electrodes
Temp Socket B, 2 mm Measuring input for the Pt1000 or
NTC type temperature sensor
Pol Socket F Measuring input for polarizable
electrodes
NOTICE
Both temperature connectors must always be used for temperature
measurement. If a temperature sensor is used with only one banana
plug, the temperature cannot be measured.