Metrohm 916 Ti-Touch Operation instructions

916 Ti-Touch
Tutorial
8.916.8002EN

Metrohm AG
CH-9100 Herisau
Switzerland
Phone [phone]
Fax [phone]
[email protected]
www.metrohm.com
916 Ti-Touch
Tutorial
8.916.8002EN 10.2011 dm/ebe

Teachware
Metrohm AG
CH-9100 Herisau
[email protected]
This documentation is protected by copyright. All rights reserved.
Although all the information given in this documentation has been
checked with great care, errors cannot be entirely excluded. Should you
notice any mistakes please send us your comments using the address
given above.
Documentation in additional languages can be found on
http://products.metrohm.com under Literature/Technical documenta-
tion.

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
916 Ti-Touch ￭￭￭￭￭￭￭￭ III
Table of contents
1Introduction 1
1.1 Structure of the tutorial ....................................................... 1
1.2 Further information .............................................................. 1
1.3 Symbols and conventions .................................................... 1
2Installation 3
2.1 Setting up and connecting the instrument ........................ 3
2.2 Mounting the propeller stirrer ............................................ 7
2.3 Inserting an electrode and buret tip ................................... 8
3Switching the instrument on and off and selecting the dia-
log language 11
3.1 Switching the instrument on and off ............................... 11
3.2 Selecting the dialog language ........................................... 12
4Fundamentals of operation 14
4.1 Touch-sensitive screen ....................................................... 14
4.2 Display and operating elements ........................................ 14
4.3 Status display ...................................................................... 16
4.4 Entering text and numbers ................................................ 16
5Setup and configuration 19
5.1 Preparing devices and material ......................................... 19
5.2 Configuring a new titrant .................................................. 19
5.3 Configuring a new sensor .................................................. 22
5.4 Configuring a printer .......................................................... 24
6Carrying out simple titrations 26
6.1 Creating a titration method ............................................... 26
6.2 Entering user name and sample data ............................... 35
6.3 Carrying out the determination ........................................ 37
6.3.1 Preparing the titration ............................................................ 37
6.3.2 Carrying out the titration ....................................................... 38
6.3.3 Displaying the results ............................................................. 39
6.3.4 Recalculating the determination ............................................. 40
6.3.5 Printing a report manually ...................................................... 42

Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 916 Ti-Touch
7Performing titration with supplementary functions 44
7.1 Statistical function .............................................................. 44
7.2 Saving the determination and the PC/LIMS report ......... 45
7.3 Modifying the titration parameters .................................. 47
7.4 Creating a sample table ..................................................... 49
7.5 Carrying out titrations using the sample table ................ 52
7.6 Showing the statistics data ............................................... 53
8Setting up the user administration 54
8.1 Creating a user list ............................................................. 54
8.2 Automatic login with USB flash drive ............................... 56
8.3 Login with password .......................................................... 58

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
916 Ti-Touch ￭￭￭￭￭￭￭￭ 1
1 Introduction
1.1 Structure of the tutorial
This tutorial describes the installation and the first steps with the
916 Ti-Touch. You will be guided step by step through the most important
dialog pages by using a simple pH titration as an example. In addition, you
will find information regarding titrations with extended functions and for
user administration.
1.2 Further information
Detailed information concerning the 916 Ti-Touch can be found in the
manual.
1.3 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 hazard
or risk of injury.
Warning
This symbol draws attention to a possible hazard due
to electrical current.
Warning
This symbol draws attention to a possible hazard due
to heat or hot instrument parts.

1.3 Symbols and conventions ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 916 Ti-Touch
Warning
This symbol draws attention to a possible biological
hazard.
Caution
This symbol draws attention to a possible damage of
instruments or instrument parts.
Note
This symbol marks additional information and tips.

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 3
2 Installation
2.1 Setting up and connecting the instrument
916 Ti-Touch
Mounting the support rod

2.1 Setting up and connecting the instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
4￭￭￭￭￭￭￭￭ 916 Ti-Touch
Plugging in the mains cable
6.2164.010
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.
Note
The plug of the power supply unit is protected against accidental dis-
connection of the cable by means of a pull-out protection feature. If
you wish to pull out the plug, you will first need to pull back the outer
plug sleeve marked with arrows.
Connecting a propeller stirrer 802 Stirrer

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 5
Connecting an 800 Dosino to MSB 1
Observe the marking on the socket.
Connecting an iConnect and electrode cable
1Make sure that the marking on the plug matches the marking on the
Ti-Touch.
2Ensure that the guide pin is in the correct position.
854 iConnect

2.1 Setting up and connecting the instrument ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6￭￭￭￭￭￭￭￭ 916 Ti-Touch
Connecting printers or other USB devices
A printer can be connected directly to the USB connector (Type A) (with a
6.2151.020 connecting cable ), as can a USB keyboard, a barcode reader
or a USB flash drive (for storing and loading methods, etc.).
If several USB devices are to be connected, then it is recommended that a
USB hub (available from specialty stores) be used. The USB hub then func-
tions as a distributor to which several USB devices can then be connected.
Connecting a balance
As a rule, balances are equipped with a serial RS-232 interface. To con-
nect a balance, you require a USB/RS-232 adapter (6.2148.050).
6.2148.050
The USB/RS-232 adapter can be connected to the 916 Ti-Touch directly or
by means of a USB hub.
Connect the 9-pin plug of the respective balance connecting cable to the
RS-232 connector. Consult the manual for the balance or the manual for
the 916 Ti-Touch in order to select the correct connecting cable.
The parameters for the RS-232 interface must match those on the instru-
ment and those on the balance. For this purpose, check the manual for
the balance and the manual for the 916 Ti-Touch.

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 7
2.2 Mounting the propeller stirrer
Mounting the electrode holder
6.2013.010
6.2021.020
Proceed as follows:
1Screw the 6.2013.010 clamping ring tightly to the support rod.
2Attach the 6.2021.020 electrode holder to the support rod. Keep the
locking lever pressed down until it can be released at the desired
position.
3Readjust the clamping ring 6.2013.010 in order to fix the position.

2.3 Inserting an electrode and buret tip ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8￭￭￭￭￭￭￭￭ 916 Ti-Touch
Inserting the propeller stirrer
2.802.0020
6.1909.010
1
2
1Insert the propeller stirrer 802 Stirrer (2.802.0020) without the stir-
ring propeller 6.1909.010 from above into the smaller of the two
openings in the center of the electrode holder.
Make sure that the stirrer cable is inserted at the rear of the device.
2Plug the 6.1909.010 stirring propeller from below to the propeller
stirrer.
2.3 Inserting an electrode and buret tip
General
During the titration, it is important that the solution be well-mixed. The
stirring rate should be high enough for a small "stirring funnel" to appear.
If the stirring rate is too high, then air bubbles will be aspirated. This
results in incorrect measured values. If the stirring rate is too low, then the
solution at the electrode will not be correctly mixed. In order to ensure
that measurement is carried out in a well-mixed solution following the
addition of the titrant, the buret tip should be placed in a position where
the turbulence is high. In addition, the distance between the addition of
the titrant and the electrode should be as large as possible. Also take into
account the stirring direction (counterclockwise or clockwise) when posi-
tioning electrode and buret tip.

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 9
1
2
3
1
2
3
a) b)
Figure 1 Schematic configuration of propeller stirrer, electrode and
buret tip during a titration. a) stirring direction clockwise, b)
stirring direction counterclockwise.
1Propeller stirrer 2Electrode
3Buret tip
Placing an 800 Dosino with dosing unit
1
2
Note
In the manual for the 807 Dosing Unit, you will find information about
assembling the dosing unit and mounting it on the bottle.
1Place the reagent bottle with 800 Dosino and dosing unit in the bot-
tle holder of the 916 Ti-Touch.

2.3 Inserting an electrode and buret tip ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ 916 Ti-Touch
2Mount the holding clamps 6.2043.005 on the bottle holder so that
the reagent bottle is securely fastened in place.
Inserting a buret tip and electrode
6.2709.070
6.1543.200 1
2
3
The following instruction applies for counterclockwise stirring direction.
This is the default setting for the stirring direction ("+").
1Insert the buret tip 6.1543.200 in the guide sleeve 6.2709.070.
2Insert the guide sleeve with the buret tip into the small opening on
the left at the rear.
The microvalve of the buret tip must not impede the stirring propel-
ler.
3Insert the electrode at the front on the right.
Make sure that the electrode cable is inserted at the rear of the
device.

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 11
3 Switching the instrument on and off and
selecting the dialog language
3.1 Switching the instrument on and off
Switching on the instrument
Caution
Peripheral devices (e.g. printers) must be switched on before you switch
on the 916 Ti-Touch.
Proceed as follows:
1￭Press the mains switch on the left-hand side of the rear panel of
the 916 Ti-Touch.
The 916 Ti-Touch is initialized. A system test is performed. This
process takes some time.
￭If a buret unit is attached, then a request appears to carry out the
Prepare function:
All tubings and the cylinder are rinsed with the Prepare function.
The preparing of the buret unit is described in the chapter Manual
control of the detailed manual.
￭Confirm the message with [OK].
The main dialog is displayed:

3.2 Selecting the dialog language ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭ 916 Ti-Touch
Switching off the instrument
Caution
The 916 Ti-Touch must be switched off by pressing the mains switch on
the rear of the instrument before the electricity supply is interrupted. If
this is not done, then there is a danger of data loss.
Proceed as follows:
1￭Press the mains switch on the left-hand side of the rear panel of
the 916 Ti-Touch.
The current data is saved and the system is shut down. This process
takes just a short time. At the same time, all other devices connected
to the 916 Ti-Touch via a USB cable are also being switched off.
3.2 Selecting the dialog language
The user interface is available in several languages. In addition to the two
default dialog languages English and German, additional languages can
be selected.
Proceed as follows to select the dialog language:
1Open the system settings
￭In the main dialog, tap on [System].
￭Tap on [System settings].
The dialog System / System settings is displayed.

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916 Ti-Touch ￭￭￭￭￭￭￭￭ 13
2Select the dialog language
￭Tap on the list box Dialog language and select the desired lan-
guage.
3Save the settings
Tap on the fixed keys [] or [ ].
The main dialog is displayed in the respective dialog language.

4.1 Touch-sensitive screen ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
14 ￭￭￭￭￭￭￭￭ 916 Ti-Touch
4 Fundamentals of operation
4.1 Touch-sensitive screen
The entire Ti-Touch user interface is touch-sensitive. Simply touch a few of
the buttons on the interface to learn how a touch-sensitive screen reacts.
You can always return to the main dialog by touching [ ].
In order to activate an element on the Ti-Touch user interface, just touch
the screen with your fingertip, finger nail, the eraser of a pencil or a stylus
(special tool for operating instruments with touch-sensitive screens).
Caution
Never touch the touch screen with a pointed or sharp object such as a
ballpoint pen.
In the default setting, the software is configured in such a way that an
acoustic signal will be generated every time an active operating element is
touched. This setting can be deactivated in the system settings.
4.2 Display and operating elements
The following display and operating elements are available: