Metrohm 916Ti User Manual

916 Ti-Touch

Manual

8.916.8005EN / 2014-03-10

Metrohm AG CH-9100 Herisau Switzerland

Phone [phone] Fax [phone] [e-mail] www.metrohm.com

916 Ti-Touch

Program version 5.916.0030

Manual

8.916.8005EN / 2014-03-10

ebe

Teachware Metrohm AG CH-9100 Herisau

[e-mail]

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.

Table of contents

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
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
	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
	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

IV	916 Ti-Touch

		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 Reagents		71
9.1	Editing reagent data ..........................................................	71
9.2	Reagent monitoring ...........................................................	72
10 Sensors		75
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
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
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
15.1	Sample data ......................................................................	151
15.1.1	Sample identification list ......................................................	152
15.1.2	Sample assignment table .....................................................	153

VI	916 Ti-Touch

		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 Methods		171
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
20 Sample table		198
20.1	General ..............................................................................	198
20.2	Edit the sample data ........................................................	201
20.3	Properties ..........................................................................	203

916 Ti-Touch

VII

Table of contents

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

22.1Editing the sample data of the running determina-

tion ....................................................................................

209

22.2Editing 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
25.3	Loading the result table ...................................................	241
26 Printing		242
26.1	General report options .....................................................	244
26.2	Settings of the individual reports ...................................	245

VIII	916 Ti-Touch

		Table of contents
26.3	List of all printable reports ..............................................	246
27 Manual control		250
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
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
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

X	916 Ti-Touch

	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

29.2Quality 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
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
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

XII	916 Ti-Touch

Table of figures

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

916 Ti-Touch

XIII

1 Introduction

1 Introduction

1.1Instrument description

The 916 Ti-Touch is a compact titration system for volumetric titration. This newly designed titrator combines in a single device the touch-sensi- tive 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.

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

1.1.1Titration 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 current)

–Upol (amperometric measurement with selectable polarization voltage)

916 Ti-Touch

1

1.1 Instrument description

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 current)

–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 current)

–Upol (amperometric measurement with selectable polarization voltage)

MEAS

Measuring modes:

–pH (pH measurement)

–U (potentiometric voltage measurement)

–Ipol (voltametric measurement with selectable polarization current)

–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)

1.1.2Connectors

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.

2	916 Ti-Touch

1 Introduction

Sensor connectors

One connection each for:

–potentiometric electrodes (pH, ISE, metal)

–reference electrodes

–polarizable electrodes

–intelligent electrodes (iTrodes)

–temperature sensors (Pt1000 or NTC)

Stirrer connector

For connecting a propeller stirrer.

Ethernet connector

For connecting the Ti-Touch to a network.

1.1.3Intended 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.

1.2About 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.

1.2.1Symbols 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

916 Ti-Touch

3

1.2 About the documentation
	[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.
				NOTE
				This symbol highlights additional information and
				tips.

4	916 Ti-Touch

2 Safety instructions

2 Safety instructions

2.1General 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.

2.2Electrical 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.

Mains voltage

WARNING

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).

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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.

2.3Tubing 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 mandatory.

2.4Flammable 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 cupboard).

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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2 Safety instructions

2.5Recycling 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.

916 Ti-Touch

7

3.1 Front of the instrument

3 Overview of the instrument

3.1Front of the instrument

10 11 9

1

	2	3	4	5	6		7	8
	Figure 1 Front 916 Ti-Touch
1	Display						2	Fixed key [Home]
	Touch screen.							Opens the main dialog.
3	Fixed key [Back]						4	Fixed key [Help]
	Saves the entry and opens the next-higher							Opens the online help for the dialog dis-
	dialog page.							played.
5	Fixed key [Print]						6	Fixed key [Manual]
	Opens the print dialog.							Opens the manual control.
7	Fixed key [STOP]						8	Fixed key [START]
	Cancels the running determination.							Starts a determination.
9	Bottle holder						10	Support rod (lower part)
	With holding clips, for reagent bottle.							For mounting the support rod (upper part).

11Titration stand

For placement of the titration vessel.

8	916 Ti-Touch

3 Overview of the instrument

3.2Rear of the instrument

10 11 12

1 2

3

4

5

6

7

8

9

Figure 2 Rear 916 Ti-Touch

1Electrode connector (Ind.)

For connecting pH, metal or ion-selective electrodes with integrated or separate reference electrode. Socket F.

3USB connector (type A)

For connecting a printer, USB flash drive, USB hub, USB Sample Processor etc.

2Electrode connector (Ref.)

For connecting reference electrodes, e.g. Ag/AgCl reference electrode. Socket B, 4 mm.

4Ethernet connector (RJ-45)

For connecting to a network.

5Temperature sensor connector (Temp.)

For connecting temperature sensors (Pt1000 or NTC). Two B sockets, 2 mm.

7MSB connector (MSB 1 and MSB 2)

Metrohm Serial Bus. For connecting external dosing devices, stirrers or a Remote Box. Mini DIN, 8-pin.

6Electrode connector (Pol.)

For connecting polarizable electrodes, e.g. Pt wire electrodes. Socket F.

8Power socket (Power)

For connecting the external power supply unit.

9	Power switch		10	Electrode connector (iConnect)
	Switches the instrument on/off.			For connecting electrodes with integrated
				data chip (iTrodes).
11	Stirrer connector		12	Type plate
	For connecting the propeller stirrer (802 Stir-			Contains the serial number.
	rer).

916 Ti-Touch

9

4.1 Setting up the instrument

4 Installation

4.1Setting up the instrument

4.1.1Packaging

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.

4.1.2Checks

Immediately after receipt, check whether the shipment has arrived complete and without damage by comparing it with the delivery note.

4.1.3Location

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 fluctuations and direct sunlight.

4.2Connecting 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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4 Installation

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 11).

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.

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.

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11

4.3 Connecting the propeller stirrer

4.3Connecting 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:

1Plug in the connection cable of the 802 Stirrer propeller stirrer to the stirrer connector of the Ti-Touch (2-11).

Figure 4 Connecting the propeller stirrer

2Attach the electrode holder (6.2021.020) to the mounted support rod (6.2016.050).

3Insert the propeller stirrer 802 Stirrer without the stirring propeller from above into the center opening of the electrode holder.

4Plug the stirring propeller (6.1909.010) from below to the propeller stirrer.

12	916 Ti-Touch

4 Installation

4.4Connecting 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.

Stirrer / Ti Stand

MSB

Remote Box

Ti Stand / Stirrer

Dosino

Dosimat

Dosimat / Dosino

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 connector 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.

4.4.1Connecting 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:

1 Switch off the Ti-Touch.

2Connect the dosing device connection cable to an MSB connector (2-7) on the rear side of the Ti-Touch.

3 Switch on the Ti-Touch.

14	916 Ti-Touch