Metrohm 915 KF Ti-Touch User manual

915 KF Ti-Touch
Manual – Short Instructions
8.915.8004EN

Metrohm AG
CH-9100 Herisau
Switzerland
Phone [phone]
Fax [phone]
[email protected]
www.metrohm.com
915 KF Ti-Touch
Manual – Short Instructions
8.915.8004EN 04.2017

Technical Communication
Metrohm AG
CH-9100 Herisau
[email protected]
This documentation is protected by copyright. All rights reserved.
This documentation has been prepared with great care. However, errors
can never be entirely ruled out. Please send comments regarding possible
errors to the address above.
Documentation in additional languages can be found on
http://documents.metrohm.com.
Melody for the BEEP command: excerpt from "En Altfrentsche", with kind
permission of the Laseyer Quartett, Appenzell.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ III
Table of contents
1 About these short instructions 1
2 Introduction 2
2.1 Instrument description ......................................................... 2
2.1.1 Titration and measuring modes ................................................ 2
2.1.2 Connectors .............................................................................. 3
2.1.3 Intended use ........................................................................... 3
2.2 About the documentation ................................................... 4
2.2.1 Symbols and conventions ........................................................ 4
3 Safety instructions 6
3.1 General notes on safety ....................................................... 6
3.2 Electrical safety ..................................................................... 6
3.3 Tubing and capillary connections ....................................... 7
3.4 Flammable solvents and chemicals ..................................... 7
3.5 Recycling and disposal ......................................................... 8
4 Overview of the instrument 9
4.1 Front of the instrument ........................................................ 9
4.2 Rear of the instrument ....................................................... 10
5 Installation 11
5.1 Setting up the instrument .................................................. 11
5.1.1 Packaging .............................................................................. 11
5.1.2 Checks .................................................................................. 11
5.1.3 Location ................................................................................ 11
5.2 Connecting the power supply unit .................................... 11
5.3 Mounting the KF titration cell ........................................... 13
5.4 Connecting MSB devices .................................................... 14
5.4.1 Connecting a dosing device ................................................... 15
5.4.2 Connecting an additional stirrer or titration stand .................. 16
5.4.3 Connecting a Remote Box ..................................................... 16
5.5 Connecting USB devices ..................................................... 17
5.5.1 General ................................................................................. 17
5.5.2 Connecting a USB hub ........................................................... 17
5.5.3 Connecting a printer .............................................................. 17
5.5.4 Connecting a balance ............................................................ 18
5.5.5 Connecting a PC keyboard ..................................................... 19
5.5.6 Connecting a barcode reader ................................................. 20

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
5.5.7 Connecting a Sample Processor ............................................. 20
5.6 Setting up the titration vessel ........................................... 21
5.7 Connecting sensors ............................................................ 21
5.7.1 General ................................................................................. 21
5.7.2 Connecting a polarizable electrode ........................................ 21
5.7.3 Connecting the temperature sensor ....................................... 22
5.8 Connecting the Ti-Touch to a network ............................ 23
6 Operation 25
6.1 Switching the instrument on and off ............................... 25
6.2 Fundamentals of operation ............................................... 27
6.2.1 Touch-sensitive screen ........................................................... 27
6.2.2 Display elements and controls ................................................ 28
6.2.3 Status display ........................................................................ 29
6.2.4 Entering text and numbers ..................................................... 30
7 Maintenance 32
Index 33

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 About these short instructions
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 1
1 About these short instructions
The present short instructions contain important chapters from the more
detailed manual. In addition to an introduction, safety instructions and an
overview of the instruments, you will also find information about the
installation and operation of the 915 KF Ti-Touch in addition to docu-
ments regarding conformity and warranty. You will find the more detailed
manual as a PDF file on the external storage medium included in the
scope of delivery.

2.1 Instrument description ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
2 Introduction
2.1 Instrument description
The 915 KF Ti-Touch is a compact titration system for volumetric Karl
Fischer titration. This titrator combines in a single device the touch-sensi-
tive color monitor for convenient and efficient operation, the titration
unit, the magnetic stirrer and the integrated membrane pump for adding
and aspirating solvents. The upper side of the housing offers space for the
titrant and the titration cell. The titrator is standard-equipped for opera-
tion with an external dosing drive of the 800 Dosino type with a dosing
unit. You can, however, also use a 805 Dosimat with an exchange unit.
Thanks to its compact construction, you can use the 915 KF Ti-Touch in a
small space as a stand-alone titrator.
You manage titrants, sensors, methods, etc. conveniently in the internal
memory of the 915 KF Ti-Touch. You can also save your files externally
through the USB connector, e.g. on a USB flash drive. On this storage
medium you can not only store your methods and determinations, but
also create a backup together with all of the data and settings of your sys-
tem.
The integrated Ethernet connector is available to you should you wish to
connect your 915 KF Ti-Touch to a network. The network connection
offers you the following advantages:
￭Saving data to a PC within the network
￭Printing reports on a network printer
￭Sending displayed messages as e-mails
2.1.1 Titration and measuring modes
The 915 KF Ti-Touch supports the following titration and measuring
modes.
￭KFT
Volumetric water content determination according to Karl Fischer.
Measuring modes:
–Ipol (voltametric measurement with selectable polarization cur-
rent)
–Upol (amperometric measurement with selectable polarization
voltage)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 Introduction
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 3
￭MEAS
Measuring modes:
–Ipol (voltametric measurement with selectable polarization cur-
rent)
–Upol (amperometric measurement with selectable polarization
voltage)
–T (temperature measurement)
2.1.2 Connectors
The 915 KF Ti-Touch is equipped with the following connectors:
￭Power connection
For connecting to the power grid using the power supply unit provi-
ded.
￭Two MSB connectors (Metrohm Serial Bus)
For connecting dosing devices, one additional stirrer or a Remote Box.
￭USB connector
For connecting peripheral devices (printer, PC keyboard, etc.), a USB
flash drive or a USB hub.
￭Sensor connectors
One connector each for:
– Polarizable electrodes
– Temperature sensor (Pt1000 or NTC)
￭Ethernet connector
For connecting the Ti-Touch to a network.
￭Two connection nipples
For connecting tubing for aspirating solvent and extracting the con-
tents of the titration cell.
2.1.3 Intended use
The 915 KF Ti-Touch is designed for usage as a titrator in analytical labora-
tories. Its application field is volumetric Karl Fischer titration.
This instrument is suitable for processing chemicals and flammable sam-
ples. Therefore, the use of the instrument requires the user to have basic
knowledge and experience in handling toxic and caustic substances.
Knowledge regarding the application of fire prevention measures prescri-
bed for laboratories is also mandatory.

2.2 About the documentation ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
2.2 About the documentation
CAUTION
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which the user must follow in order to ensure safe opera-
tion of the instrument.
2.2.1 Symbols and conventions
The following symbols and formatting may appear in this documentation:
Cross-reference to figure legend
The first number refers to the figure number, the sec-
ond to the instrument part in the figure.
Instruction step
Carry out these steps in the sequence shown.
Method Dialog text, parameter in the software
File ▶ New Menu or menu item
[Next] Button or key
WARNING
This symbol draws attention to a possible life-threat-
ening hazard or risk of injury.
WARNING
This symbol draws attention to a possible hazard due
to electrical current.
WARNING
This symbol draws attention to a possible hazard due
to heat or hot instrument parts.
WARNING
This symbol draws attention to a possible biological
hazard.
CAUTION
This symbol draws attention to possible damage to
instruments or instrument parts.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 Introduction
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 5
NOTE
This symbol highlights additional information and
tips.

3.1 General notes on safety ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
3 Safety instructions
3.1 General notes on safety
WARNING
This instrument may only be operated in accordance with the specifica-
tions in this documentation.
This instrument has left the factory in a flawless state in terms of technical
safety. To maintain this state and ensure non-hazardous operation of the
instrument, the following instructions must be observed carefully.
3.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
WARNING
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
WARNING
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
Supply voltage
WARNING
An incorrect supply voltage can damage the instrument.
Only operate this instrument with a supply voltage specified for it (see
rear panel of the instrument).

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Safety instructions
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 7
Protection against electrostatic charges
WARNING
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
Do not fail to pull the power cord out of the power socket before you
set up or disconnect electrical plug connections at the rear of the
instrument.
3.3 Tubing and capillary connections
CAUTION
Leaks in tubing and capillary connections are a safety risk. Tighten all
connections well by hand. Avoid applying excessive force to tubing
connections. Damaged tubing ends lead to leakage. Appropriate tools
can be used to loosen connections.
Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are manda-
tory.
3.4 Flammable solvents and chemicals
WARNING
All relevant safety measures are to be observed when working with
flammable solvents and chemicals.
￭Set up the instrument in a well-ventilated location (e.g. fume cup-
board).
￭Keep all sources of flame far from the workplace.
￭Clean up spilled liquids and solids immediately.
￭Follow the safety instructions of the chemical manufacturer.

3.5 Recycling and disposal ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
3.5 Recycling and disposal
This product is covered by European Directive 2012/19/EU, WEEE – Waste
from Electrical and Electronic Equipment.
The correct disposal of your old instrument will help to prevent negative
effects on the environment and public health.
More details about the disposal of your old instrument can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4 Overview of the instrument
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 9
4 Overview of the instrument
4.1 Front of the instrument
12 13
11
2345
1
67
8 9 10
Figure 1 Front 915 KF Ti-Touch
1Display
Touch screen.
2Fixed key [Home]
Opens the main dialog.
3Fixed key [Back]
Saves the entry and opens the next-higher
dialog page.
4Fixed key [Help]
Opens the online help for the dialog dis-
played.
5Fixed key [Print]
Opens the print dialog.
6Key
Pressing the key pumps air into the solvent
bottle. The overpressure in the solvent bottle
pushes solvent into the KF titration cell.
7Key
Pressing the key aspirates air out of the aspi-
ration bottle. The vacuum in the aspiration
bottle suctions the liquid out of the KF titra-
tion cell and into the aspiration bottle.
8Fixed key [Manual]
Opens the manual control.
9Fixed key [STOP]
Cancels the running determination.
10 Fixed key [START]
Starts a determination.

4.2 Rear of the instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
11 Bottle holder
With holding clips, for reagent bottle.
12 Support rod (lower part)
For mounting the support rod (upper part).
13 Titration stand
With built-in magnetic stirrer and membrane
pump for placement of the titration cell.
4.2 Rear of the instrument
89
1 2 34567
10
Figure 2 915 KF Ti-Touch rear
1USB connector (type A)
For connecting a printer, USB flash drive,
USB hub, Sample Processor etc.
2Ethernet connector (RJ-45)
For connecting to a network.
3Temperature sensor connector (Temp.)
For connecting temperature sensors (Pt1000
or NTC). Two B sockets, 2 mm.
4Electrode connector (Pol.)
For connecting polarizable electrodes, e.g.
double Pt electrodes. Socket F.
5MSB connector (MSB 1 and MSB 2)
Metrohm Serial Bus. For connecting external
dosing devices, stirrers or a Remote Box.
Mini DIN, 8-pin.
6Power socket (Power)
For connecting the external power supply
unit.
7Power switch
Switches the instrument on/off.
8Connection nipple for PVC tubing
For aspirating the contents of the titration
cell.
9Connection nipple for PVC tubing
For aspirating solvent.
10 Type plate
Contains the serial number.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5 Installation
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 11
5 Installation
5.1 Setting up the instrument
5.1.1 Packaging
The instrument is supplied in protective packaging together with the sepa-
rately packed accessories. Keep this packaging, as only this ensures safe
transportation of the instrument.
5.1.2 Checks
Immediately after receipt, check whether the shipment has arrived com-
plete and without damage by comparing it with the delivery note.
5.1.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
Place the instrument in a location of the laboratory which is suitable for
operation, free of vibrations, protected from corrosive atmosphere, and
contamination by chemicals.
The instrument should be protected against excessive temperature fluctu-
ations and direct sunlight.
5.2 Connecting the power supply unit
The 915 KF Ti-Touch has an external power supply unit for a 24 V power
supply (DC). This is connected to the mains connection of the Ti-Touch.
WARNING
An incorrect mains voltage can damage the device.
Operate the device only with the mains voltage specified for it. Use the
supplied power supply unit exclusively, see Technical specifications
chapter.

5.2 Connecting the power supply unit ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
Figure 3 Connecting the power supply unit
Proceed as follows:
1Connect the plug of the external power supply unit with the mains
connection of the Ti-Touch (see Figure 3, page 12).
NOTE
The plug of the power supply unit is protected against accidental
disconnection of the cable by means of a pull-out protection fea-
ture. If you wish to pull out the plug, you will first need to pull
back the outer plug sleeve marked with arrows.
2Connect the mains cable with the external power supply unit of the
Ti-Touch and with the mains supply.
CAUTION
Switch off the Ti-Touch correctly by pressing the mains switch before
you disconnect the electricity supply. If this is not done, then there is a
danger of data loss.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5 Installation
915 KF Ti-Touch ￭￭￭￭￭￭￭￭ 13
5.3 Mounting the KF titration cell
The KF titration cell can be mounted with the aid of the upper part of KF
titration cell.
NOTE
To prevent damage to the KF titration cell, the permissible height above
the stirrer can be fixed with the aid of the clamping ring at the upper
part of the KF titration cell.
Proceed as follows:
1Push the clamping ring (6.2013.010) down as far as possible onto
the mounted support rod (6.2016.050). Make sure while doing so
that the indent is facing upwards.
2Fix the 6.1414.030 vessel lid of the KF titration cell (with correctly
inserted sealing ring from the 6.1244.040 sealing set) to the support
rod.
3Keep the locking lever pressed down and push the vessel lid down.
4Fasten the 6.1415.220 (or 6.1415.250) KF titration cell with a
6.1903.020 (or 6.1903.030) stirring bar inside on the vessel lid. Fold
back the holding bracket upwards while doing so. The markings on
the vessel lid and on the plastic ring must be aligned above one
another. Afterwards, press the holding bracket downwards in order
to fix the KF titration cell. The levers of the holding bracket must
enclose the pins of the plastic ring on the KF titration cell in order to
ensure a secure hold.
5Adjust the height of the KF titration cell by pressing the locking lever.
It should almost touch the surface of the stirrer.
6Readjust the clamping ring to the KF titration cell position and screw
tight to fix the position of the KF titration cell. Make sure that the
nose of the electrode holder is placed in the opening of the clamping
ring.
If the height of the KF titration cell has been adjusted correctly, the
entire cell can be raised and swiveled as required by pressing the
locking lever.

5.4 Connecting MSB devices ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
14 ￭￭￭￭￭￭￭￭ 915 KF Ti-Touch
5.4 Connecting MSB devices
In order to connect MSB devices, e.g. dosing devices or Remote Box, the
Ti-Touch has two connectors to what is referred to as the Metrohm Serial
Bus (MSB). Various peripheral devices can be connected in sequence (daisy
chain) at a single MSB connector (8-pin Mini DIN socket) and be control-
led simultaneously by the Ti-Touch. In addition to the connection cable,
stirrers and the Remote Box are each equipped with their own MSB socket
for this purpose.
NOTE
The additional stirrer must not be connected to the MSB 1!
The following figure provides an overview of the instruments that can be
connected to an MSB socket, along with a number of different cabling
variations.
MSB
Stirrer / Ti Stand
Dosimat / Dosino
Dosimat
Remote Box
Dosino
Ti Stand / Stirrer
Figure 4 MSB connections