Metrohm 916Ti User Manual
916 Ti-Touch
Manual
8.916.8005EN / 2014-03-10
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
info@metrohm.com
www.metrohm.com
916 Ti-Touch
Program version 5.916.0030
8.916.8005EN / 2014-03-10
Manual
ebe
Teachware
Metrohm AG
CH-9100 Herisau
teachware@metrohm.com
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://documents.metrohm.com.
Melody for the BEEP command: excerpt from "En Altfrentsche", with kind
permission of the Laseyer Quartett, Appenzell.
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Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.1.1 Titration and measuring modes ................................................ 1
1.1.2 Connectors .............................................................................. 2
1.1.3 Intended use ........................................................................... 3
1.2 About the documentation ................................................... 3
1.2.1 Symbols and conventions ........................................................ 3
2 Safety instructions 5
2.1 General notes on safety ....................................................... 5
2.2 Electrical safety ..................................................................... 5
2.3 Tubing and capillary connections ....................................... 6
2.4 Flammable solvents and chemicals ..................................... 6
Table of contents
2.5 Recycling and disposal ......................................................... 7
3 Overview of the instrument 8
3.1 Front of the instrument ........................................................ 8
3.2 Rear of the instrument ......................................................... 9
4 Installation 10
4.1 Setting up the instrument .................................................. 10
4.1.1 Packaging .............................................................................. 10
4.1.2 Checks .................................................................................. 10
4.1.3 Location ................................................................................ 10
4.2 Connecting the power supply unit .................................... 10
4.3 Connecting the propeller stirrer ........................................ 12
4.4 Connecting MSB devices .................................................... 13
4.4.1 Connecting dosing devices .................................................... 14
4.4.2 Connecting an additional stirrer or titration stand .................. 15
4.4.3 Connecting a Remote Box ..................................................... 15
4.5 Connecting USB devices ..................................................... 16
4.5.1 General ................................................................................. 16
4.5.2 Connecting a USB hub ........................................................... 16
4.5.3 Connecting a printer .............................................................. 16
4.5.4 Connecting a balance ............................................................ 17
4.5.5 Connecting a PC keyboard ..................................................... 18
4.5.6 Connecting a barcode reader ................................................. 18
4.5.7 Connecting a Sample Processor ............................................. 19
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Table of contents
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4.6 Connecting sensors ............................................................ 20
4.6.1 General ................................................................................. 20
4.6.2 Connecting a pH, metal or ion-selective electrode .................. 20
4.6.3 Connecting a reference electrode .......................................... 21
4.6.4 Connecting a polarizable electrode ........................................ 22
4.6.5 Connecting a temperature sensor or an electrode with inte-
grated temperature sensor .................................................... 23
4.6.6 Connecting an iConnect ........................................................ 24
4.6.7 Differential potentiometry ...................................................... 25
4.7 Connecting the Ti-Touch to a network ............................ 25
5 Titrations 27
5.1 Dynamic equivalence point titration (DET) ....................... 27
5.2 Monotonic equivalence point titration (MET) .................. 27
5.3 Endpoint titration (SET) ..................................................... 28
6 Operation 29
6.1 Switching the instrument on and off ............................... 29
6.2 Fundamentals of operation ............................................... 31
6.2.1 Touch-sensitive screen ........................................................... 31
6.2.2 Display elements and controls ................................................ 31
6.2.3 Status display ........................................................................ 32
6.2.4 Entering text and numbers ..................................................... 33
7 System settings 36
7.1 General system settings ..................................................... 36
7.1.1 Selecting the dialog language ................................................ 36
7.1.2 Setting the date, time and local time ..................................... 37
7.2 System-specific dialog options .......................................... 38
7.3 User administration ............................................................ 42
7.3.1 Editing the user configuration ................................................ 43
7.3.2 Creating an identification profile ............................................ 45
7.3.3 Defining login options ........................................................... 46
7.3.4 Password options .................................................................. 47
7.4 Measured value display ..................................................... 50
7.5 Acoustic signals .................................................................. 50
8 Titrants 51
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IV
8.1 Adding a new titrant .......................................................... 52
8.2 Editing titrant data ............................................................. 53
8.3 Monitoring the working life .............................................. 55
8.4 Dosing unit .......................................................................... 56
8.4.1 Parameters for preparing (PREP) and emptying (EMPTY) ......... 57
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9 Reagents 71
10 Sensors 75
Table of contents
8.4.2 Tubing parameters ................................................................. 58
8.4.3 Shift direction of the valve disk .............................................. 61
8.5 Exchange unit ..................................................................... 62
8.5.1 Parameters for the preparation (PREP) .................................... 63
8.5.2 Tubing parameters ................................................................. 64
8.6 GLP test for exchange unit and dosing unit .................... 66
8.7 Titer determination options and data .............................. 68
8.7.1 Titer validity ........................................................................... 68
8.7.2 Properties of the previous titer determinations ....................... 69
9.1 Editing reagent data .......................................................... 71
9.2 Reagent monitoring ........................................................... 72
10.1 Adding a new sensor ......................................................... 76
10.2 Editing the sensor data ...................................................... 77
10.3 Monitoring the working life .............................................. 78
10.4 Calibration data (for pH electrodes only) ......................... 79
10.4.1 Properties of the previous calibrations .................................... 81
10.5 Limit values for the calibration data ................................. 83
10.6 Monitoring the calibration interval (for pH electrodes
only) ..................................................................................... 84
11 Device manager 86
11.1 Adding a new device .......................................................... 87
11.2 Configuring the instrument ............................................... 87
11.3 Ti-Touch ............................................................................... 88
11.3.1 E-mail .................................................................................... 89
11.3.2 PC/LIMS report ...................................................................... 90
11.3.3 Shared memory ..................................................................... 91
11.3.4 TCP/IP settings ....................................................................... 93
11.4 Metrohm control devices ................................................... 94
11.4.1 Properties – Measuring input ................................................. 95
11.4.2 Properties – MSB connector ................................................... 96
11.4.3 Properties – Peripheral devices ............................................... 97
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11.5 USB Sample Processor ....................................................... 97
11.5.1 Properties – Sample Processor ............................................... 98
11.5.2 Properties – Tower ................................................................ 99
11.5.3 Properties – Swing Head ...................................................... 101
11.6 Sample racks ..................................................................... 105
11.6.1 Editing rack data .................................................................. 107
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Table of contents
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11.6.2 Rack adjustment .................................................................. 113
11.7 Printer ................................................................................ 114
11.7.1 PDF settings ......................................................................... 115
11.7.2 Network printer ................................................................... 116
11.7.3 More options ....................................................................... 118
11.8 Balance .............................................................................. 118
11.9 USB/RS-232 adapter ......................................................... 120
11.10 PC keyboard ...................................................................... 121
11.11 Barcode reader ................................................................. 123
12 File manager 125
12.1 Managing files .................................................................. 125
12.1.1 Copying a file ...................................................................... 127
12.1.2 Renaming a file ................................................................... 127
12.1.3 File properties ...................................................................... 128
12.2 External storage medium ................................................ 129
12.3 Creating backups / Restoring data ................................. 131
12.3.1 Restoring data ..................................................................... 131
13 GLP manager 133
13.1 Automatic system test ..................................................... 134
13.2 Test tools .......................................................................... 134
13.3 GLP tests for measurement and titration ...................... 135
13.3.1 Parameter description .......................................................... 136
13.4 System validation ............................................................. 139
13.4.1 Parameter description .......................................................... 140
13.5 System monitoring ........................................................... 143
13.5.1 Service interval .................................................................... 143
13.5.2 Backup interval .................................................................... 144
14 Common variables 145
14.1 Editing common variables ............................................... 146
14.2 Properties of common variables ..................................... 147
14.3 Monitoring validity ........................................................... 148
14.4 Assigning a result automatically to a common varia-
ble ...................................................................................... 149
15 Templates 151
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VI
15.1 Sample data ...................................................................... 151
15.1.1 Sample identification list ...................................................... 152
15.1.2 Sample assignment table ..................................................... 153
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16 Methods 171
Table of contents
15.2 Custom result templates .................................................. 155
15.2.1 Editing result templates ....................................................... 156
15.3 Input lines ......................................................................... 159
15.3.1 Editing the input signal ........................................................ 160
15.4 Output lines ...................................................................... 161
15.4.1 Editing the output signal ...................................................... 163
15.5 Custom calibration buffers .............................................. 164
15.5.1 Defining calibration buffers .................................................. 164
15.6 Report header ................................................................... 166
15.7 Custom electrode type ..................................................... 167
15.7.1 Limit values for the electrode rating ..................................... 168
16.1 Creating a new method ................................................... 171
16.2 Saving a method ............................................................... 172
16.3 Loading a method ............................................................ 173
16.4 Editing a method .............................................................. 174
16.4.1 Inserting a command ........................................................... 175
16.5 Method options ................................................................ 176
16.5.1 Start options ........................................................................ 177
16.5.2 Stop options ........................................................................ 179
16.5.3 Sample data ........................................................................ 180
16.5.4 Method properties ............................................................... 184
16.5.5 Note .................................................................................... 184
16.5.6 Saving a determination automatically ................................... 184
17 Control 187
18 Favorites 191
18.1 Creating favorites ............................................................. 192
18.1.1 Editing favorites ................................................................... 192
19 Sample data 195
19.1 Entering sample data in the main dialog ....................... 195
19.2 Requesting sample data at the start of the determina-
tion .................................................................................... 196
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20 Sample table 198
20.1 General .............................................................................. 198
20.2 Edit the sample data ........................................................ 201
20.3 Properties .......................................................................... 203
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VII
Table of contents
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21 Determination run 206
21.1 Carrying out a single determination ............................... 206
21.2 Performing a sample series ............................................. 207
21.3 Canceling determinations manually ............................... 208
22 Live modifications 209
22.1 Editing the sample data of the running determina-
tion .................................................................................... 209
22.2 Editing the sample table while a determination is run-
ning .................................................................................... 210
22.3 Live display ....................................................................... 211
22.4 Live parameters ................................................................ 213
23 Results and more determination data 215
23.1 More determination data ................................................ 216
23.1.1 Details ................................................................................. 217
23.2 Messages ........................................................................... 219
23.3 Local common variables .................................................. 220
23.4 Determination properties ................................................ 220
23.5 Loading a determination ................................................. 221
23.5.1 Determination list ................................................................ 222
23.6 Saving a determination .................................................... 227
23.7 Curves ................................................................................ 227
23.8 Recalculation and reevaluation ....................................... 229
24 Statistics 231
24.1 Displaying details for a result .......................................... 233
24.2 Deleting statistical data ................................................... 234
24.3 Adding a determination to a determination series ....... 234
25 Result table 236
25.1 Properties .......................................................................... 237
25.2 Saving the result table ..................................................... 241
VIII
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25.3 Loading the result table ................................................... 241
26 Printing 242
26.1 General report options ..................................................... 244
26.2 Settings of the individual reports ................................... 245
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27 Manual control 250
Table of contents
26.3 List of all printable reports .............................................. 246
27.1 Opening and closing the manual control ....................... 251
27.2 Measuring ......................................................................... 252
27.2.1 Parameter description .......................................................... 253
27.3 Dosing ............................................................................... 254
27.3.1 Continuous dosing .............................................................. 257
27.3.2 Dosing fixed volumes ........................................................... 258
27.3.3 Preparing ............................................................................. 261
27.3.4 Emptying ............................................................................. 262
27.3.5 Filling .................................................................................. 262
27.3.6 Replacing reagent ................................................................ 263
27.4 Stirring ............................................................................... 263
27.5 Remote .............................................................................. 265
27.6 USB Sample Processor ..................................................... 266
27.6.1 Moving the lift ..................................................................... 268
27.6.2 Moving to a rack position .................................................... 270
27.6.3 External positions ................................................................ 271
28 Parameters 276
28.1 Dynamic equivalence point titrations (DET) ................... 276
28.1.1 Start conditions ................................................................... 276
28.1.2 Titration parameters ............................................................ 279
28.1.3 Stop conditions ................................................................... 283
28.1.4 Potentiometric evaluation .................................................... 284
28.1.5 Control device ..................................................................... 289
28.1.6 Sensor ................................................................................. 289
28.1.7 Dosing device ...................................................................... 291
28.1.8 Stirrer .................................................................................. 291
28.2 Monotonic equivalence point titrations (MET) .............. 292
28.2.1 Start conditions ................................................................... 292
28.2.2 Titration parameters ............................................................ 295
28.2.3 Stop conditions ................................................................... 298
28.2.4 Potentiometric evaluation .................................................... 300
28.2.5 Control device ..................................................................... 305
28.2.6 Sensor ................................................................................. 305
28.2.7 Dosing device ...................................................................... 307
28.2.8 Stirrer .................................................................................. 307
28.3 Endpoint titrations (SET) .................................................. 308
28.3.1 Start conditions ................................................................... 308
28.3.2 Control parameters .............................................................. 310
28.3.3 Titration parameters ............................................................ 313
28.3.4 Stop conditions ................................................................... 314
28.3.5 Conditioning ....................................................................... 315
28.3.6 Cell ...................................................................................... 317
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Table of contents
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28.3.7 Control device ..................................................................... 317
28.3.8 Sensor ................................................................................. 318
28.3.9 Dosing device ...................................................................... 319
28.3.10 Stirrer .................................................................................. 320
28.4 Manual titrations (MAT) .................................................. 321
28.4.1 Dosing parameters .............................................................. 321
28.4.2 Control device ..................................................................... 322
28.4.3 Sensor ................................................................................. 322
28.4.4 Dosing device ...................................................................... 323
28.4.5 Stirrer .................................................................................. 326
28.5 Measurements (MEAS) ..................................................... 327
28.5.1 Measuring parameters ......................................................... 327
28.5.2 Control device ..................................................................... 329
28.5.3 Sensor ................................................................................. 330
28.5.4 Stirrer .................................................................................. 331
28.6 Calibration of sensors (CAL) ............................................ 332
28.6.1 Calibration parameters (CAL pH) .......................................... 332
28.6.2 Control device ..................................................................... 336
28.6.3 Sensor ................................................................................. 336
28.6.4 Stirrer .................................................................................. 337
28.7 Electrode test for pH electrodes (ELT) ............................ 338
28.7.1 Electrode test parameters .................................................... 339
28.7.2 Control device ..................................................................... 340
28.7.3 Sensor ................................................................................. 340
28.7.4 Stirrer .................................................................................. 341
28.7.5 Further information ............................................................. 342
28.8 Evaluations (EVAL) ........................................................... 344
28.8.1 Fixed endpoint evaluation (EVAL FIX-EP) .............................. 345
28.8.2 pK value and half neutralization potential evaluation (EVAL
pK/HNP) .............................................................................. 346
28.8.3 Minimum and maximum evaluation (EVAL MIN/MAX) .......... 347
28.8.4 Break point evaluation (EVAL BREAK) ................................... 348
28.8.5 Rate evaluation (EVAL RATE) ................................................ 351
28.9 Calculations ....................................................................... 352
28.9.1 Calculations (CALC) ............................................................. 352
28.9.2 Calculations (CALC LIVE) ...................................................... 360
28.9.3 Formula editor ..................................................................... 362
28.10 Reports (REPORT) ............................................................. 368
28.10.1 General report options ......................................................... 368
28.10.2 Settings of the individual reports .......................................... 369
28.10.3 List of reports ...................................................................... 370
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X
28.11 Dosing and Liquid Handling ............................................ 373
28.11.1 Preparing an exchange or dosing unit (PREP) ........................ 373
28.11.2 Emptying a dosing unit (EMPTY) .......................................... 374
28.11.3 Dosing a specified volume (ADD) ......................................... 375
28.11.4 Liquid Handling (LQH) .......................................................... 380
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Table of contents
28.12 Communication ................................................................ 383
28.12.1 Scanning remote lines (SCAN) .............................................. 383
28.12.2 Setting remote lines (CTRL) .................................................. 385
28.12.3 Scanning the RS-232 interface (SCAN RS) ............................. 386
28.12.4 Defining RS-232 commands (CONTROL RS) .......................... 387
28.13 Automation ....................................................................... 388
28.13.1 Rotating sample rack (MOVE) .............................................. 388
28.13.2 Moving the lift (LIFT) ............................................................ 390
28.13.3 Controlling pumps (PUMP) ................................................... 391
28.13.4 Resetting the rack (RACK) .................................................... 392
28.13.5 Defining the sample variable (SAMPLE) ................................ 392
28.13.6 Creating a subsequence (SUBSEQ) ....................................... 393
28.14 Miscellaneous commands ................................................ 396
28.14.1 Controlling a stirrer (STIR) .................................................... 396
28.14.2 Pausing the method run (WAIT) ........................................... 397
28.14.3 Scan data (REQUEST) ........................................................... 398
28.14.4 Defining an acoustic signal (BEEP) ........................................ 399
28.14.5 Canceling the method run (END) ......................................... 399
29 Operation and maintenance 400
29.1 System initialization ......................................................... 400
29.2 Quality management and qualification with Metrohm 401
30 Troubleshooting 402
30.1 Editing methods ............................................................... 402
30.2 Sample table ..................................................................... 402
30.3 Results/Statistics ............................................................... 402
30.4 Printing .............................................................................. 403
30.5 Manual control ................................................................. 403
30.6 SET titration ...................................................................... 404
31 Appendix 406
31.1 Dosing unit ........................................................................ 406
31.1.1 Maximum dosing and filling rate .......................................... 406
31.1.2 Default parameters for preparing (PREP) and emptying
(EMPTY) ............................................................................... 406
31.2 Exchange unit ................................................................... 407
31.2.1 Maximum dosing and filling rate .......................................... 407
31.2.2 Default parameters for preparing (PREP) .............................. 407
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31.3 Stirring rate ....................................................................... 407
31.4 Balance .............................................................................. 408
31.5 Remote interface .............................................................. 409
31.5.1 Pin assignment of the remote interface ................................ 409
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Table of contents
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31.6 Result variables as parameter setting ............................ 412
31.7 Electrode calibration with USB Sample Processors ....... 413
31.8 Stored buffer series for pH calibration ........................... 415
31.9 Diagnosis ........................................................................... 419
31.9.1 LCD test .............................................................................. 420
31.9.2 Formatting an external storage medium ............................... 420
31.9.3 Removing an external storage medium ................................ 421
31.9.4 Adjusting the touch screen .................................................. 421
31.9.5 Testing the touch screen ...................................................... 422
31.9.6 Software update (loading program versions and language
files) .................................................................................... 423
31.9.7 Service ................................................................................. 426
31.10 Arithmetic algorithms in the Ti-Touch ........................... 426
32 Technical specifications 429
32.1 Touch screen ..................................................................... 429
32.2 Measuring inputs .............................................................. 430
32.2.1 Potentiometry ...................................................................... 430
32.2.2 Polarizer .............................................................................. 430
32.2.3 Temperature ........................................................................ 431
32.3 Interfaces .......................................................................... 432
32.4 Power supply .................................................................... 432
32.5 Safety specifications ........................................................ 432
32.6 Electromagnetic compatibility (EMC) ............................. 433
32.7 Ambient temperature ...................................................... 433
32.8 Reference conditions ........................................................ 433
32.9 Dimensions ........................................................................ 434
33 Warranty (guarantee) 435
34 Accessories 437
Index 439
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Table of figures
Figure 1 Front 916 Ti-Touch ............................................................................ 8
Figure 2 Rear 916 Ti-Touch ............................................................................. 9
Figure 3 Connecting the power supply unit ................................................... 11
Figure 4 Connecting the propeller stirrer ....................................................... 12
Figure 5 MSB connections ............................................................................ 13
Figure 6 MSB connector ............................................................................... 14
Figure 7 Connecting a pH, metal or ion-selective electrode ........................... 21
Figure 8 Connecting a reference electrode .................................................... 22
Figure 9 Connecting a polarizable electrode .................................................. 22
Figure 10 Connecting a temperature sensor or an electrode with integrated tem-
perature sensor ............................................................................... 23
Figure 11 Connecting the iConnect ................................................................. 24
Figure 12 Connecting an electrode to the iConnect ........................................ 25
Figure 13 Connecting the Ti-Touch to a network ............................................ 26
Figure 14 Reagent dosing for DET ................................................................... 27
Figure 15 Reagent dosing for MET .................................................................. 27
Figure 16 Reagent dosing for SET ................................................................... 28
Figure 17 Dosing unit – port assignment ......................................................... 61
Figure 18 Exchange unit – tubing connections ................................................ 66
Figure 19 Live display "Preparing the dosing unit" ......................................... 261
Figure 20 Live display "Preparing the exchange unit" ..................................... 262
Figure 21 Equivalence point recognition and equivalence point numbering within
windows ....................................................................................... 288
Figure 22 Tubbs method for determining the equivalence point .................... 288
Figure 23 Equivalence point recognition and equivalence point numbering within
windows ....................................................................................... 304
Figure 24 Evaluation of pK value / half neutralization potential ...................... 347
Figure 25 Evaluation of minimum and maximum ........................................... 347
Figure 26 Evaluation of a break point ............................................................ 349
Figure 27 Rotational speed depending on stirring rate .................................. 408
Figure 28 Connectors of the Remote Box ...................................................... 409
Figure 29 Pin assignment of remote socket and plug .................................... 409
Table of figures
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1 Introduction
1.1 Instrument description
The 916 Ti-Touch is a compact titration system for volumetric titration.
This newly designed titrator combines in a single device the touch-sensitive color monitor for convenient and efficient operation, the titration unit
and an integrated stirrer interface for a propeller stirrer. The upper side of
the housing offers space for the titrant and the titration vessel. The titrator
is standard-equipped for operation 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 916 Ti-Touch in a small space as a stand-alone titrator.
You manage titrants, sensors, methods, etc. conveniently in the internal
memory of the 916 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 system.
1 Introduction
The integrated Ethernet connection is available to you should you wish to
connect your 916 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
1.1.1 Titration and measuring modes
The 916 Ti-Touch supports the following titration and measuring modes.
￭ DET
Dynamic equivalence point titration. The reagent is added in variable
volume steps.
Measuring modes:
– pH (pH measurement)
– U (potentiometric voltage measurement)
– Ipol (voltametric measurement with selectable polarization cur-
rent)
– Upol (amperometric measurement with selectable polarization
voltage)
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1
1.1 Instrument description
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￭ MET
Monotonic equivalence point titration. The reagent is added in constant volume steps.
Measuring modes:
– pH (pH measurement)
– U (potentiometric voltage measurement)
– Ipol (voltametric measurement with selectable polarization cur-
rent)
– Upol (amperometric measurement with selectable polarization
voltage)
￭ SET
Endpoint titration at one or two specified endpoints.
Measuring modes:
– pH (pH measurement)
– U (potentiometric voltage measurement)
– Ipol (voltametric measurement with selectable polarization cur-
rent)
– Upol (amperometric measurement with selectable polarization
voltage)
￭ MEAS
Measuring modes:
– pH (pH measurement)
– U (potentiometric voltage measurement)
– Ipol (voltametric measurement with selectable polarization cur-
rent)
– Upol (amperometric measurement with selectable polarization
voltage)
– T (temperature measurement)
￭ CAL
pH electrode calibration.
Measuring mode:
– pH (calibration of pH electrodes)
– ELT (Electrode test for pH electrodes)
1.1.2 Connectors
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2
The 916 Ti-Touch is equipped with the following connectors:
￭ Mains connection
For connecting to the mains supply with the aid of the power supply
unit provided.
￭ Two MSB connectors (Metrohm Serial Bus)
For connecting dosing devices, stirrers or a Remote Box.
￭ USB connector
For connecting peripheral devices (printer, PC keyboard, etc.), a USB
Sample Processor, a USB flash drive or a USB hub.
916 Ti-Touch
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￭ Sensor connectors
￭ Stirrer connector
￭ Ethernet connector
1.1.3 Intended use
The 916 Ti-Touch is designed for usage as a titrator in analytical laboratories. Its main application field is volumetric titration.
This instrument is suitable for processing chemicals and flammable samples. The usage of the 916 Ti-Touch therefore requires that the user has
basic knowledge and experience in the handling of toxic and caustic substances. Knowledge with respect to the application of the fire prevention
measures prescribed for laboratories is also mandatory.
1 Introduction
One connection each for:
– potentiometric electrodes (pH, ISE, metal)
– reference electrodes
– polarizable electrodes
– intelligent electrodes (iTrodes)
– temperature sensors (Pt1000 or NTC)
For connecting a propeller stirrer.
For connecting the Ti-Touch to a network.
1.2 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 operation of the instrument.
1.2.1 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 second to the instrument part in the figure.
Instruction step
Carry out these steps in the sequence shown.
Method Dialog text, parameter in the software
916 Ti-Touch
File ▶ New Menu or menu item
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3
1.2 About the documentation
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[Next] Button or key
WARNING
This symbol draws attention to a possible life-threatening 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.
NOTE
This symbol highlights additional information and
tips.
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4
916 Ti-Touch
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2 Safety instructions
2.1 General notes on safety
WARNING
This instrument may only be operated in accordance with the specifications 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.
2.2 Electrical safety
2 Safety instructions
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.
Mains voltage
WARNING
916 Ti-Touch
An incorrect mains voltage can damage the instrument.
Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
￭￭￭￭￭￭￭￭
5
2.3 Tubing and capillary connections
Protection against electrostatic charges
WARNING
Electronic components are sensitive to electrostatic charges and can be
destroyed by discharges.
Do not fail to pull the mains cable out of the mains connection socket
before you set up or disconnect electrical plug connections at the rear
of the instrument.
2.3 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.
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Check the connections regularly for leakage. If the instrument is used
mainly in unattended operation, then weekly inspections are mandatory.
2.4 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.
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6
916 Ti-Touch
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2.5 Recycling and disposal
This product is covered by European Directive 2002/96/EC, WEEE – Waste
from Electrical and Electronic Equipment.
The correct disposal of your old equipment will help to prevent negative
effects on the environment and public health.
More details about the disposal of your old equipment can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.
2 Safety instructions
916 Ti-Touch
￭￭￭￭￭￭￭￭
7
3.1 Front of the instrument
1
2
3
4
5
6
7
8
9
10
11
3 Overview of the instrument
3.1 Front of the instrument
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Figure 1 Front 916 Ti-Touch
Display
1
Touch screen.
Fixed key [Back]
3
Saves the entry and opens the next-higher
dialog page.
Fixed key [Print]
5
Opens the print dialog.
Fixed key [STOP]
7
Cancels the running determination.
Bottle holder
9
With holding clips, for reagent bottle.
Titration stand
11
For placement of the titration vessel.
Fixed key [Home]
2
Opens the main dialog.
Fixed key [Help]
4
Opens the online help for the dialog displayed.
Fixed key [Manual]
6
Opens the manual control.
Fixed key [START]
8
Starts a determination.
Support rod (lower part)
10
For mounting the support rod (upper part).
916 Ti-Touch
￭￭￭￭￭￭￭￭
8
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3 4
5
6
7
8
9
1 2
10
11
12
3.2 Rear of the instrument
Figure 2 Rear 916 Ti-Touch
3 Overview of the instrument
Electrode connector (Ind.)
1
For connecting pH, metal or ion-selective
electrodes with integrated or separate reference electrode. Socket F.
USB connector (type A)
3
For connecting a printer, USB flash drive,
USB hub, USB Sample Processor etc.
Temperature sensor connector (Temp.)
5
For connecting temperature sensors (Pt1000
or NTC). Two B sockets, 2 mm.
MSB connector (MSB 1 and MSB 2)
7
Metrohm Serial Bus. For connecting external
dosing devices, stirrers or a Remote Box.
Mini DIN, 8-pin.
Power switch
9
Switches the instrument on/off.
Stirrer connector
11
For connecting the propeller stirrer (802 Stirrer).
Electrode connector (Ref.)
2
For connecting reference electrodes, e.g.
Ag/AgCl reference electrode. Socket B,
4 mm.
Ethernet connector (RJ-45)
4
For connecting to a network.
Electrode connector (Pol.)
6
For connecting polarizable electrodes, e.g.
Pt wire electrodes. Socket F.
Power socket (Power)
8
For connecting the external power supply
unit.
Electrode connector (iConnect)
10
For connecting electrodes with integrated
data chip (iTrodes).
Type plate
12
Contains the serial number.
916 Ti-Touch
￭￭￭￭￭￭￭￭
9
4.1 Setting up the instrument
4 Installation
4.1 Setting up the instrument
4.1.1 Packaging
The instrument is supplied in highly protective special packaging together
with the separately packed accessories. Keep this packaging, as only this
ensures safe transportation of the instrument.
4.1.2 Checks
Immediately after receipt, check whether the shipment has arrived complete and without damage by comparing it with the delivery note.
4.1.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
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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 fluctuations and direct sunlight.
4.2 Connecting the power supply unit
The 916 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.
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10
916 Ti-Touch
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Figure 3 Connecting the power supply unit
Proceed as follows:
Connect the plug of the external power supply unit with the mains
1
connection of the Ti-Touch (see Figure 3, page 11).
4 Installation
NOTE
The plug of the power supply unit is protected against accidental
disconnection 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.
Connect the mains cable with the external power supply unit of the
2
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.
916 Ti-Touch
￭￭￭￭￭￭￭￭
11
4.3 Connecting the propeller stirrer
4.3 Connecting the propeller stirrer
The 916 Ti-Touch has a built-in stirrer connector. You can connect the
802 Stirrer propeller stirrer to it.
Proceed as follows:
Plug in the connection cable of the 802 Stirrer propeller stirrer to the
1
stirrer connector of the Ti-Touch (2-11).
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Figure 4 Connecting the propeller stirrer
Attach the electrode holder (6.2021.020) to the mounted support
2
rod (6.2016.050).
Insert the propeller stirrer 802 Stirrer without the stirring propeller
3
from above into the center opening of the electrode holder.
Plug the stirring propeller (6.1909.010) from below to the propeller
4
stirrer.
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12
916 Ti-Touch
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
MSB
Stirrer / Ti Stand
Dosimat / Dosino
Dosimat
Remote Box
Dosino
Ti Stand / Stirrer
4.4 Connecting MSB devices
In order to connect MSB devices, e.g. dosing device or Remote-Box, the
Ti-Touch has two connectors at 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
controlled 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.
The following figure provides an overview of the devices that can be connected to an MSB socket, along with a number of different cabling variations.
4 Installation
916 Ti-Touch
Figure 5
MSB connections
NOTE
When connecting MSB devices together, the following must be
observed:
￭ Only one device of the same type can be used at a single MSB con-
nector at one time.
￭ When making the connection, take care to ensure that the flat part
of the MSB plug marked with arrows is pointing in the direction of
the marking on the MSB connector (see Figure 6, page 14).
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13
4.4 Connecting MSB devices
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
Figure 6 MSB connector
CAUTION
Switch off the Ti-Touch before you plug in MSB devices. When it is
switched on, the Ti-Touch automatically recognizes which device is connected to which MSB connector. The connected MSB devices are
entered automatically in the device manager.
MSB connections can be extended with the 6.2151.010 cable. The maximum connection length permitted is 6 m.
4.4.1 Connecting dosing devices
You can connect two dosing devices to the Ti-Touch.
The types of dosing devices that are supported are:
￭ 800 Dosino
￭ 805 Dosimat
Proceed as follows:
Switch off the Ti-Touch.
1
Connect the dosing device connection cable to an MSB connector
2
(2-7) on the rear side of the Ti-Touch.
Switch on the Ti-Touch.
3
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14
916 Ti-Touch
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