Operating Instructions Titration Excellence Terminal
Table of Contents Contents Page 1. Introduction 1 2. Functional Description 3 2.1 Layout of the Terminal 3 2.2 Operating the Touchscreen 4 2.3 The User Interface 4 2.3.1 The Home Screen 5 2.3.2 Entering Data in the User Interface. 6 2.3.3 Sorting Lists 7 2.3.4 The Task Menu (T70/T90 only) 7 2.3.5 Shortcuts and Direct Shortcuts 8 2.3.6 The Analysis Start Screen 8 2.3.7 The Online Screen 9 3. Setup (Setup) 11 3.1 Overview of the Menu Structure for the Setup Menu 12 3.2 Chemicals 13 3.2.1 Titrant 13 3.2.2 Auxiliary Reagents 14 3.2.3 Calibration Standard 15 3.2.4 Titer Standards 18 3.2.5 Substances 18 3.3 Hardware 19 3.3.1 Sensors 19 3.3.2 Pumps 29 3.3.3 Peripherals 29 3.3.4 Titration Stands 35 3.3.5 Auxiliary Instruments 38 3.4 User Settings 40 3.4.1 Language 40 3.4.2 Display 40 3.4.3 Sounds 41 3.4.4 Shortcuts 41 3.4.5 Keyboards 42 3.5 Global Settings 43 3.5.1 System 43 3.5.2 User Management 45 3.5.3 Performance of Analyses and Resources 48 3.6 Values 52 3.6.1 Blanks 52 3.6.2 Auxiliary Values 53 3.7 Service & Maintenance 54 3.7.1 MT-Service 54 3.7.2 Import/Export 55 3.7.3 Resetting Factory Settings 56 3.7.4 Software History 56 3.7.5 Firmware 56 3.7.6 Terminal 56 3.7.7 Board Data 56 3.7.8 Drives 57 3.7.9 Burettes 57 3.7.10 Upgrade (only for T70) 57 3.7.11 Update 57 3.8 Monitoring the Expiration Date and Life Span of Resources 58 3.8.1 Monitoring the Expiration Date of a Resource 58 3.8.2 Monitoring the Life Span of a Resource 59 METTLER TOLEDO T50 / T70 / T90 I
Table of Contents 3.9 Sensor Calibration 60 3.9.1 Linear Calibration 60 3.9.2 Segmented Calibration 61 4. Methods 63 4.1 Starting Methods 64 4.1.1 Starting Methods from the Method Editor 64 4.2 Establishing Methods 64 4.3 Modifying Methods 65 4.4 Deleting Methods 66 4.5 Method Syntax Rules for Establishing Methods 67 4.5.1 Possible Number of Method Functions 67 4.5.2 Types of Methods 68 4.5.3 Types and Possible Number of Loops 68 4.5.4 Entering and Deleting Loops 69 4.5.5 Method Functions Within a Loop 70 4.5.6 Method Functions Outside of a Loop 71 4.6 Overview of Method Functions 72 4.7 Method Function Settings 73 Title 73 Sample 74 Sample (titer) 75 Sample (calibration) 75 Titration stand 76 Rinse 78 Conditioning 79 Pump 80 Park 80 Stir 81 Dispense (normal) 81 Calculation 82 Drain 84 Record 85 End of sample 86 Titer 86 Calibration 87 Auxiliary value 88 Blank value 89 Auxiliary instrument 90 Instruction 93 Measure (normal) 95 Measure (MVT) 98 Titration (EQP) 100 Titration (EP) 105 Titration (2-phase) 109 Titration (EQP detection) 114 Stating 116 Dispense (controlled) 120 4.8 Value Ranges from Sensor Measuring Units and Control Band 122 5. Manual operations (Manual) 123 5.1 Stirrer 124 5.2 SENSOR 124 5.2.1 Temperature sensor 125 5.2.2 Potentiometric Sensor 125 5.2.3 Polarized Sensor 126 5.2.4 Conductivity Sensor 128 5.3 Burette 129 II METTLER TOLEDO T50 / T70 / T90
Table of Contents 5.3.1 Rinse burette 129 5.3.2 Dispense 130 5.3.3 Manual titration 131 5.4 Pump 134 5.5 Auxiliary Instrument 134 5.6 Sample changer 138 6. Series templates 141 6.1 Sample series 141 6.2 Series sequence [T90] 142 6.3 Free sample series 143 6.4 Sample parameters 144 7. Processing sequence of an analysis 147 7.1 Start of an analysis 147 7.2 Processing sequence of an analysis 150 8. Results 153 8.1 All results 153 8.2 Add result 153 8.3 Statistics 154 8.3.1 Outlier test 154 8.4 Recalculate 156 8.5 Samples 156 8.6 Reevaluate 157 8.7 Undo changes 158 8.8 Delete all results 158 9. Evaluate and calculate 159 9.1 Analysis data 159 9.2 Indexing of method functions 160 9.3 Naming conventions for using analysis data in calculations 161 9.4 Formulas 165 9.4.1 Mathematical Functions and Operators 166 9.4.2 Using analysis data in formulas 166 9.5 Explanatory examples 169 9.5.1 Titration method function 169 9.5.2 Stating method function 172 9.6 Titrator evaluation procedure 174 9.6.1 Standard Evaluation Procedure 174 9.6.2 Minimum/Maximum 175 9.6.3 Segmented 175 9.6.4 Asymmetrical 176 9.7 Sample formulas 177 9.8 Constants within a Content Calculation 178 10. Appendix 181 10.1 Predefined Calibration Standards 181 10.2 METTLER Methods 189 10.3 Application Modes 190 10.4 Method Templates 191 Index 193 METTLER TOLEDO T50 / T70 / T90 III
Table of Contents IV METTLER TOLEDO T50 / T70 / T90
Introduction 1. Introduction Titration excellence simple, efficient, secure The instruments in METTLER TOLEDO's Titration Excellence Line are modern, modular titrators for use in a wide range of applications. They can be used in quality control as well as in research and development. With their wide array of applications, they can satisfy the most stringent requirements. The titrators in the Titration Excellence Line combine simple, easy-to-use functions with the most flexible, outstanding analytical efficiency. Rapid titrant change is made easy thanks to a new procedure that detects titrant automatically (Burette Plug & Play PnP). The titrator automatically recognizes the titrant needed without the need for any action by the user. Even installing sample changers and additional dosing units makes manual adjustments superfluous. Titration Excellence instruments can be controlled by means of a terminal and/or LabX PC software. The terminal is a large color touch screen that allows for intuitive user guidance that can be adjusted to each user. All functions can be accessed directly from the main screen via customizable shortcuts which, when used on a daily basis, lighten the workload considerably. Operating the titrator using a terminal is described in detail in this operating instructions manual. The various titrator operating instructions available when using LabX PC software is illustrated in separate operating instructions entitled "LabX for Titration Excellence". The following separate installation information describes all of the steps necessary to install and begin operating your Titration Excellence instrument. The "Quick Guide" will then guide you through the first titration process using a practical example. If you have any additional questions, METTLER TOLEDO is always available to assist you. METTLER TOLEDO T50 / T70 / T90 1
Introduction 2 METTLER TOLEDO T50 / T70 / T90
Functional Description 2. Functional Description 2.1 Layout of the Terminal The control panel of the terminal consists of an integrated touchscreen (d) and four additional buttons (a, b and 2 x c), which are located outside of the touch-sensitive interface of the display: The Reset button (a) ends all tasks that are currently running. The Info button (b) activates the interactive online help for the contents of the current screen. Two Home buttons (c) always take you back to the Home screen (to the left and right of the display). You can press these four buttons any time, regardless of which screen you are currently in. The Reset button is a kind of "EMERGENCY OFF" switch. If the titrator malfunctions or there is an operating error, you can stop all current tasks by pressing the reset button. Afterward, for each task, you can decide whether to end it completely or continue. a b d c METTLER TOLEDO T50 / T70 / T90 3
Functional Description 2.2 Operating the Touchscreen With the exception of the four buttons, the titrator is operated exclusively using the integrated touchscreen and the On/Off button on the titrator. Simply touch the touch-sensitive surface of the display with your fingertip or fingernail to select a button or entry element. Never touch the surface of the touchscreen with pointed or sharp objects! Doing so can damage the touchscreen! 2.3 The User Interface The graphical user interface consists of five basic elements (a-e). The title bar (a) at the top of the display indicates the name of the current screen. The task button, located in the top right corner, uses animation to indicate whether a task is running. You can access the task menu anytime by pressing the task button, which displays an overview of all tasks currently running (with the T50, or when only one task is operating, you can get to the current task directly by pressing the task button). From the task menu, you can jump to any task currently running. The navigation bar, located below the title bar, displays the path to the current screen. The scroll bar (d), located on the right side of the screen, will be visible as soon as the contents of the screen are beyond the viewable range. If this occurs, use either the arrows or the area in between them to move the viewable area of the screen up or down. (A maximum of) five blue softkeys (e) are located at the bottom of the display. The function of these buttons varies and depends on the context of the current menu. 4 METTLER TOLEDO T50 / T70 / T90
Functional Description 2.3.1 The Home Screen The Home screen is the first screen that appears after starting the titrator. You can come back to this screen at anytime by pressing the Home button. The Home screen contains five buttons (c), which take you to the individual submenus: Methods: This button takes you to the Method Editor where you can create and manage methods. (See "4. Methods") Series Templates: In this menu, series of individual samples can be created and managed, e.g. when using a sample changer. (See "6. Series Templates") Results: Manage the results of your analysis here. (See "8. Results") Setup: The hardware and resources the titrator uses are configured in the Setup. Both global and user settings are also assigned here. (See "3. Setup") Manual: This button takes you to manual operations. Stirrers, sensors, pumps, etc. can be operated here independently from analyses. (See "5. Manual Operations (Manual)") There is yet another area (b) that can be configured for every user (with the necessary authorization). 12 shortcuts per user can be stored here. By using these shortcuts (a), defined methods, series and manual operations can be started directly from the Home screen. (See "2.3.5 Shortcuts and Direct Shortcuts") METTLER TOLEDO T50 / T70 / T90 5
Functional Description 2.3.2 Entering Data in the User Interface. There are different types of input fields in the user interface where you can either enter data or select data from a list. Input fields can also be deactivated and their contents are then displayed as information only and cannot be changed in the corresponding menu. The various types of input fields are identified by an icon to the right of the screen: Text input fields Number input fields Drop-down lists List fields Menu fields Formula fields Deactivated (Info field) Any text comprised of letters, numbers and symbols can be entered into these fields. Numbers, formulas and auxiliary values can be entered into these fields. In some fields an auxiliary value can be selected from the Auxiliary Values list by pressing the "H" button. By selecting these fields, a drop-down list will open from which you can select an entry. By selecting these fields a menu list will open in a new window. By selecting these fields, a new screen will open with a number of additional menu options. A formula must be entered in these fields. You can enter these manually or access a menu list by pressing the "Suggestion" softkey. The values in deactivated input fields are displayed as information only and cannot be edited in the corresponding menu. Deactivated checkbox (No) Activated checkbox (Yes) In addition to the input fields there are checkboxes that can be checked in order to select certain functionalities. Checkboxes can affect the scope of the corresponding menu, i.e. input fields can be hidden or visible depending on whether the checkbox is checked. Limits for the input fields (number of characters for text input fields, minimum and maximum values, and number of decimal points for number input fields) are entered into the respective entry display screen: 6 METTLER TOLEDO T50 / T70 / T90
Functional Description 2.3.3 Sorting Lists All of the lists displayed in the user interface can be sorted by column alphabetically or numerically in ascending or descending order. To do this, simply touch the header row of the list (b) in the column by which you would like to sort the list. A little arrow (a) in the header row indicates the column by which the list is sorted and whether it is sorted in ascending or descending order. 2.3.4 The Task Menu (T70/T90 only) The task menu is accessed via the task button (in the top right corner of the display screen) and provides an overview of all tasks that are currently running. Selecting one of the individual tasks from the list will take you back to the respective online screen where you can end the task. METTLER TOLEDO T50 / T70 / T90 7
Functional Description 2.3.5 Shortcuts and Direct Shortcuts Shortcuts allow you to start methods, series and manual operations from the homepage. You can place up to twelve different shortcuts on the homepage by pressing the "AddToHome" softkey button. "AddToHome" softkeys are located on the methods, series and manual operations start screens. Shortcuts are user-specific, i.e. each individual user can create a maximum of twelve shortcuts for the tasks they personally conduct the most with the titrator. The titrator supports two types of shortcuts. Direct shortcuts which, when selected, start immediately without warning (only if the other settings allow this), and normal shortcuts which take you to the corresponding start screen from which you can start the task. Shortcuts for methods, series or manual operations that bring you the corresponding start screen. Shortcuts for methods, series or manual operations with integrated reference symbols in the icon that start the corresponding task when selected provided the other settings allow for it. Shortcuts are managed in Setup, under the subcategory "User Settings". This is where shortcuts can be deleted or modified, and their position on the Home screen changed. (See "3.3.4 Shortcuts") As soon as the maximum number of (12) shortcuts have been created on the Home screen, the AddToHome button in the start screen for methods, series and manual operations will be deactivated. Caution: Tasks started using the shortcuts can begin immediately without warning. Therefore, always make sure that all tubes are connected to suitable vessels prior to using a shortcut. For an explanation of the settings available when creating a shortcut, see "7.1 Starting an Analysis". 2.3.6 The Analysis Start Screen An analysis, whether a single or multiple determination, can be started on the titrator in a number of ways: By using the "Start" softkey in the Method Editor By using the "Start" softkey on the Home screen By using a shortcut (or direct shortcut) on the Home screen By using the "Start" softkey in the "Series" menu By using the "Calibrate" or "Titer" softkeys in the "Setup" menu (to perform a calibration or titer determination) The analysis start screen is always the first screen that appears after using a softkey ("Start", "Calibrate" or "Titer") or a shortcut. 8 METTLER TOLEDO T50 / T70 / T90
Functional Description When a direct shortcut is activated, the analysis start screen will not appear and the respective method will start immediately, provided that the other settings allow this. The parameters for the previously used method or series will appear in the analysis start screen so that the same method can immediately be started again. Of course, all of the settings can also be adjusted prior to pressing the "Start" softkey. The type and number of settings displayed in the analysis start screen depends on the type of analysis to be started and the resources used. For an explanation of the settings available when starting an analysis from the analysis start screen, see "7.1 Starting an Analysis". 2.3.7 The Online Screen The online screen is displayed when an analysis or manual operation is being performed. The method ID of the current method or the type of manual operation is displayed in the title bar. In the navigation bar below, the sample index, displayed as "Sample 2/5" (second of a total of five samples) and loop index, displayed as "Loop 1/3" (first of three loops) are shown. (The loop index will only be displayed if the method actually contains more than one loop (available only with T70 and T90)). The navigation path will be displayed in the navigation bar while a manual operation is being performed. METTLER TOLEDO T50 / T70 / T90 9
Functional Description The remainder of the online screen is divided into a graphical area (left) and a data area (right). The measured curve is displayed in the graphical area during a titration or measurement in which the unit to be displayed on each axis can be chosen from a predefined selection. In addition to the online screen, you can also display a table of measured values during the titration or measurement. Depending on the type of method function being performed, the online screen displays various data such as measured values, remaining run times, volume dispensed, stirrer speed, duration of the analysis or temperature. 10 METTLER TOLEDO T50 / T70 / T90
Setup 3. Setup (Setup) In this chapter you will learn how to adjust the titrator settings according to your requirements. In order to perform a titration, the resources that are used in the method (titrants, sensors, peripherals, etc.) must be installed and configured. The setup, which helps you install these resources, is divided into the following areas: Setup area Chemicals Hardware User settings Global settings Values Service & maintenance Description All types of chemicals such as titrants, auxiliary reagents and standards for titer determination and calibration standards can be defined here. In this menu you can define the hardware components of your titration system, such as sensors, titration stands, pumps and auxiliary instruments. User-defined settings, such as language, display settings or shortcuts can be assigned here. System settings can be established here that apply to every user. Blank and auxiliary values can be specified under "Values". Here the user can assign actions to be taken regarding the servicing and maintenance of the titrator. The "Expired resources" button On the overview screen of the setup menu you will find the "Expired resources" button. By pressing this button you go to an overview of all expired resources with the type, name and date of expiry of the respective resource. Resources that were selected during setup in "Monitoring expiration dates" and/or "Monitoring life span" may be expired. See "3.8 Monitoring the Expiration Dates and Life Span of Resources". METTLER TOLEDO T50 / T70 / T90 11
Setup 3.1 Overview of the Menu Structure for the Setup Menu Chemicals ------------------- Titrants Auxiliary reagents Calibration standards Titer standards Substances Hardware ------------------- Sensors Pump Peripherals Titration stands Auxiliary instruments User settings ------------------- Language Screen Sounds Shortcuts Keyboards Global settings ------------------- System User management Performance of analyses and resources Values ------------------- Blanks Auxiliary values Service & maintenance ------------------- MT-Service Import/Export Reset to factory settings Software history Firmware Terminal Board data Drives Burettes Upgrade Update 12 METTLER TOLEDO T50 / T70 / T90
Setup 3.2 Chemicals All chemicals such as titrants, titer and calibration standards, auxiliary reagents and other substances are configured and managed under the menu, "Chemicals". Lists of the chemicals already defined in the system can be viewed and printed at any time, and new chemicals can be defined and existing ones can be deleted. Auxiliary reagents must be assigned to a pump to which they can be added, and titrants (regardless of type) must each be assigned to a drive. 3.2.1 Titrant The following settings can be edited and viewed for each titrant: Parameter Explanation Value range Type The type of titrant. Either "General titration" for a classic titrant or "Auxiliary reagent" if you want to use a burette to dispense an auxiliary reagent. Name Select any name for the titrant. Arbitrary Concentration Concentration Titer Determination method Date/Time Performed by Monitoring expiration dates Monitoring life span The concentration of the titrant, in [mol/l]. (For "type" = "general titration" only.) The non-dimensional concentration of an auxiliary reagent. (For "type" = "auxiliary reagent" only.) The titer for the titrant. (For "type" = "general titration" only.) Contains eather the entry "Manual" if the value for the titer was entered manually or the ID of the method used to determine the titer. (For "type" = "general titration" only.) (Info field) Either the date and time the titer was entered manually or the date and time the titer was determined by means of a method. (For "type" = "general titration" only.) (Info field) Name of the user who entered or determined the titer. (For "type" = "general titration" only.) (Info field) Specifies whether to monitor the expiration date during which the titer is used. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) Specifies whether to monitor the life span of the titrant. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) General titration Auxiliary reagent 0.00001 100 0.00001 10000 0.00001 10 Manual Method ID Date/Time User name LabX operator Lot/Batch The lot or batch of the titrant. Enter any designation. Arbitrary Fill rate The filling rate of the burette in percent. 100% stands for maximum filling rate. Burette volume Drive The volume of the burette. Choices are 1, 5, 10 and 20 ml. Defines the drive on which you will use the burette containing the titrant. You can select the "PnP" entry for available but unused PnP burettes. 30 100 1 5 10 20 1 8 PnP METTLER TOLEDO T50 / T70 / T90 13
Setup Serial number You can enter the serial number of the burette containing the titrant here. For PnP burettes the system will enter this number automatically, but you will be able to change it. Arbitrary A maximum of 100 titrants can be defined in the titrator. 3.2.2 Auxiliary Reagents Auxiliary reagents are liquid chemicals that can be used to aid the titration process. Auxiliary reagents must be added using a pump and can be used via the method functions "Pumps" and "Rinsing". The following settings can be viewed and edited: Parameter Explanation Value range Name Select any name for the auxiliary reagent. Arbitrary Pump Pump output You can use this setting to select a pump from the pump list in the setup. The pump output assigned to the selected pump. (As defined in the pump setup.) (Info field) A maximum of 50 auxiliary reagents can be defined in the titrator. Pump list List of available pump outputs. 14 METTLER TOLEDO T50 / T70 / T90
Setup 3.2.3 Calibration Standard In addition to the predefined calibration standard lists for ph and conductivity sensors shown in the appendix, user-defined calibration standard lists can also be managed. In this menu, you can view and print the predefined lists stored in the titrator, and create additional userdefined calibration standard lists for ph buffers and ISE and conductivity standards. First you have to create a new calibration standard list. The following settings are available for this: Parameter Explanation Value range Type Name Unit Base list Ref. temperature Defines the type of calibration standard list to be created. The type will depend on the type of the sensor to be calibrated. For a calibration list of the "Auto ph" type, the titrator will identify the standards automatically. The type selected will define the value range for the "unit of measure" parameter. Select any name for the new calibration standard list. Enter the unit of measure for the calibration standard, depending on the type of the calibration standard list. To create an auto ph calibration standards list, you must select suitable ph buffers from an existing base list. The reference temperature in [ C] that all the standards or ph buffers of a calibration standard list will reference. ph Auto ph ISE Conductivity Arbitrary ph (for "ph" and "auto-ph" types) pm px ppm (for "ISE" type) ms/cm µs/cm (for "conductivity" type) Calibration standard-list -20.0 200.0 After you have created a calibration standard list, you can add various buffers and standards to this list, depending on the type selected: For a calibration standard list for "ph", see "3.2.3.1 Adding a ph Calibration Standard (ph Buffer)" For a calibration standard list for "auto-ph", see "3.2.3.2 Adding a ph Calibration Standard (ph Buffer) to an Auto-pH Calibration Standard List" For a calibration standard list for "ISE", see "3.2.3.3 Adding an ISE Calibration Standard (ISE Standard)" For a calibration standard list for "conductivity", see "3.2.3.4 Adding a Conductivity Calibration Standard (Conductivity Standard)" To delete a user-defined calibration standard list from the titrator, you first have to view the settings of the list using the "Info" softkey. From this menu you can delete the calibration standard list from the titrator memory by selecting "delete". A maximum of 20 user-defined calibration standard lists and 10 auto-ph buffer lists can be defined in the titrator. METTLER TOLEDO T50 / T70 / T90 15
Setup 3.2.3.1 Adding a ph Calibration Standard (ph Buffer) After you have created a "ph" calibration standard list, you can add various ph buffers to thid list by using "New". To do so, enter the respective ph value of the buffer, based on the reference temperature from the calibration standard list: Parameter Explanation Value range Ref. temperature ph value The reference temperature in [ C] that was defined when creating the calibration standard list. (Info field) The ph value of the ph buffer at the reference temperature. -20.0 200.0 0 20 To display the temperature influence of a ph buffer, you can enter a maximum of 20 variant pairs for each individual buffer composed of the temperature and corresponding ph value: Select a buffer and press "New". Parameter Explanation Value range Temperature ph value The temperature in [ C], for which the ph value of the ph buffer has been entered. The ph value of the ph buffer at the temperature defined with the setting "Temperature". -20.0 200.0 0 20 This is how you can create a complete calibration standard list according to the lists already stored in the titrator. 3.2.3.2 Adding a ph Calibration Standard (ph Buffer) to an Auto ph Calibration Standard List For a calibration list of the "Auto ph" type, the titrator will identify the various ph buffer automatically. In order to ensure positive identification, the ph values of the individual solutions have to differ from each other by at least two points. You can add the calibration standard lists of various ph buffers by selecting them from the specified base list. By doing so, the titrator offers only suitable ph buffers in order to ensure that the selected ph buffers always differ from each other by at least two ph points. The temperature influence of the individual ph buffers is also be taken from the base list and can only be viewed but not changed. 3.2.3.3 Adding an ISE Calibration Standard (ISE Standard) After you have created an "ISE" calibration standard list, you can add this list to various ISE standards by using "New". To do this, enter the corresponding value for the standard in the desired unit of measure, based on the reference temperature from the calibration: Parameter Explanation Value range Ref. temperature Standard value The reference temperature in [ C] that was defined when creating the calibration standard list. (Info field) The value of the ISE standard at the reference temperature in the desired unit of measure. -20.0 200.0-100 100 16 METTLER TOLEDO T50 / T70 / T90
Setup To display the temperature influence of an ISE standard, you can enter a maximum of 20 variant pairs for each individual standard composed of the temperature and corresponding standard value: Select a buffer and press "New". Parameter Explanation Value range Temperature Standard value The temperature in [ C] for which the standard value is entered. The ph value of the ISE standard at the temperature defined with the setting "Temperature". Thus you can create a complete calibration standard list for ISE sensors. 3.2.3.4 Adding a Conductivity Calibration Standard (Conductivity Standard) -20.0 200.0-100 100 (for pm and px) 0.000 1000000 (for ppm) After you have created a "Conductivity" calibration standard list, you can add various conductivity standards to this list by using "New". To do this, enter the conductivity for each standard based on the reference temperature from the calibration standard list: Parameter Explanation Value range Ref. temperature Conductivity The reference temperature in [ C] that was defined when creating the calibration standard list. (Info field) The conductivity value of the standard in the unit selected with "Unit". -20.0 200.0 0.000 1000000 (for ms/cm) 0.00 1000000 (for µs/cm) To display the temperature influence of a conductivity standard, you can enter a maximum of 20 variant pairs for each individual standard composed of the temperature and corresponding conductivity value: Select a buffer and press "New". Parameter Explanation Value range Temperature Conductivity The temperature for which the conductivity of the standard has been specified. The conductivity value of the standard in the unit selected with "Unit". -20.0 200.0 0.000 1000000 (for ms/cm) 0.00 1000000 (for µs/cm) This is how you can create a complete calibration standard list for conductivity sensors. METTLER TOLEDO T50 / T70 / T90 17
Setup 3.2.4 Titer Standards The titer standard required for determining the titer for the titrant you used can also be stored and managed in the titrator. The following parameters can be edited and viewed for each titer standard: Parameter Explanation Value range Type Defines whether it is a liquid or solid standard. Solid Liquid Name Select any name for the standard. Arbitrary Purity Concentration The purity of a solid standard, in percent. (For "type" = "solid" only.) The concentration of a liquid standard, in [mol/l]. (For "type" = "liquid" only.) 0.001 100000 0.00001 100 m The molar mass of a solid standard, in [g/mol]. 0.00001 1000 Density Equivalent number The density of a liquid standard, in [g/ml]. (For "type" = "liquid" only.) The equivalent number z of the standard 1 9 0.0001 100 Lot/Batch The number of the standard. Arbitrary Date/Time Performed by Monitoring expiration dates The date and time the standard was created or changed (references the "Lot/Batch" setting). (Info field) Name of the user who entered or determined the titer. (Info field) Specifies whether to monitor the expiration date during which the same lot/batch is used. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) A maximum of 50 titer standards can be defined in the titrator. 3.2.5 Substances Date/Time User name LabX operator In the menu "Substances", any chemical substances that are required for conducting the analysis can be managed using name, empirical formula, molecular weight and equivalent number. Parameter Explanation Value range Name Select any name for the substance. Arbitrary Empirical formula The total molecular formula of the substance. Arbitrary Molecular weight Equivalent number You can enter the molecular weight of the substance here. The equivalent number of the substance. 1 9 A maximum of 100 substances can be defined in the titrator. 0.0001 10000 18 METTLER TOLEDO T50 / T70 / T90
Setup 3.3 Hardware In this menu you can configure all of the hardware components connected to the titrator, such as: Sensors Pumps Peripherals (instruments such as printers or balances) Titration stands Auxiliary instruments (such as valves or filling level sensors) 3.3.1 Sensors Sensors to be used with the titrator can be configured and managed in this menu. You can view and print the list of all sensors defined in the titrator, add and delete sensors, and change settings already stored in the titrator. The settings for an individual sensor can also be output to a printer. In addition, the corresponding method for sensor calibration can be accessed from here. A maximum of 50 sensors can be defined in the titrator. Each sensor is associated with a specific type. Each sensor type can deliver measured values in one or more units of measure. The following table provides information regarding which units of measure can be selected for a corresponding sensor type: Sensor type Default unit of measure Eligible units of measure mv Sensor mv mv ph sensor ph ph mv ISE sensor pm pm / px ppm mv Phototrode %T %T A mv Polarized sensor mv mv µa Temperature sensor C C K F Conductivity sensor µs/cm µs/cm ms/cm µs ms Changing the unit of measure for a sensor can cause the calibration parameters and expiration date settings to deactivate and be omitted, the titrator to change the calibration parameters (for temperature sensors), or it can cause the titrator to show another set of calibration parameters (for ISE sensors). METTLER TOLEDO T50 / T70 / T90 19
Setup The following settings are initially available when creating a new sensor in the titrator: Parameter Explanation Value range Sensor type The type of the sensor. mv ph Phototrode Polarized Temperature Conductivity ISE Additional settings are available when configuring a sensor depending on the sensor type selected: 3.3.1.1 mv Sensors Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. mv Sensor input The input to which you want to connect the sensor. AB1/SENSOR1 AB1/SEN- SOR2 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Monitoring life span 3.3.1.2 ph Sensors Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. mv ph Sensor input The input to which you want to connect the sensor. AB1/SENSOR1 AB1/SENSOR2 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Calibration Defines the calibration type. (Appears for "unit" = "ph" only.) Calibration type "Linear" Zero point Slope (TCalib) Slope (25.0 C) Slope The zero point of the ph sensor in the unit [ph]. (Zero point, slope and corresponding calibration temperature are required to convert the mv signal of the sensor to the "ph" unit.) (Appears for "unit" = "ph" only.) The slope of the sensor at the calibration temperature in [mv/ph]. (Appears for "unit" = "ph" only.) The slope of the ph sensor in [mv/ph], based on a temperature of 25 C. This field will update automatically every time the parameters "Slope [mv/ ph]" or "Calibration Temperature [ C]" are changed. (Appears for "unit" = "ph" only.) (Info field) The slope of the sensor in [%]. The titrator automatically calculates the number in this field using the "Slope [%] = Slope [mv/ph] (25 C)/-59.16 * 100" (Appears for "unit" = "ph" only.) (Info field) Linear Segmented -100 100-100 100-100 100-169.0 169.0 20 METTLER TOLEDO T50 / T70 / T90
Setup Calibration type "segmented" Calibration type "segmented" Number of segments Zero point 1 Slope 1 (TCalib) Slope 1 (25 C) Slope 1 Seg. boundaries 1,2 [ph] Zero point 2 Slope 2 (TCalib) Slope 2 (25 C) Slope 2 [%] etc. Internal temperature sensor Calibration temperature Calibration method Date/Time This parameter is adjusted automatically by the calibration method used. All subsequent parameters will be adjusted to match the number of segments. The system records two numbers per segment (zero point and slope). x-1 segment boundaries are entered for x segments. The maximum possible calibration is for 9 points (resulting in 8 segments). (Appears for "unit" = "ph" only) (Info field) The zero point of the sensor for the 1st segment in [ph]. (Appears for "unit" = "ph" only.) (Info field) The sensor gradient in [mv/ph for the 1st segment at calibration temperature. (Appears for "unit" = "ph" only.) (Info field) The ph sensor gradient in [mv/ph] for the 1st Segment, umgerechnet auf eine Temperatur von 25 C. (Appears for "unit" = "ph" only.) (Info field) Slope 1 of the sensor in [%]. The titrator automatically calculates the number in this field using the "Slope 1 [%]=Slope [mv/ph] (25 C)/-59.16 * 100" (Appears for "unit" = "ph" only.) (Info field) Specifies the segment boundary between Segments 1 and 2 in [ph]. (Appears for "unit" = "ph" only.) (Info field) The zero point of the sensor for the 2nd segment in [ph]. (Appears for "unit" = "ph" only.) (Info field) The sensor gradient in [mv/ph] for the 2nd segment at calibration temperature. (Appears for "unit" = "ph" only.) The zero point of the sensor for the 2nd segment in [mv/ph], recalculated for a temperature of 25 C (Appears for "unit" = "ph" only.) (Info field) The slope of the sensor in [%]. The titrator automatically calculates the number in this field using the "Slope 2 [%] = Slope [mv/ph] (25 C)/-59.16 * 100" (Appears for "unit" = "ph" only.) (Info field) If the sensor has an internal temperature sensor, you can select "yes" here. In this case the system will automatically make an entry in the sensor setup for the internal temperature sensor. The temperature during calibration in [ C]. (Appears for "unit" = "ph" only.) (Info field for segmented calibration) The titrator fills this field in automatically. The entry is either filled in as "Manual" if manual changes were made to the calibration parameters, or it is filled in with the name of the method if the sensor was calibrated with the aid of the "Calibrate" method function. (Appears for "unit" = "ph" only.) (Info field) Date and time of the last calibration. (Appears for "unit" = "ph" only.) (Info field) 3 9-100 100-100 100-100 100-100 100-100 100-100 100-100 100-100 100-100 100-20 200 Manual Name of the calibration method Date/Time METTLER TOLEDO T50 / T70 / T90 21
Setup Performed by The name of the user or LabX user logged in during the last calibration. (Appears for "unit" = "ph" only.) (Info field) Logged-in user LabX user Monitoring expiration dates Monitoring life span Specifies whether to monitor the expiration date of the sensor. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) (Appears for "unit" = "ph" only.) Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) 22 METTLER TOLEDO T50 / T70 / T90
Setup 3.3.1.3 Phototrode Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. %T A mv Sensor input The input to which you want to connect the sensor. AB1/SENSOR1 AB1/SEN- SOR2 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Wavelength The Phototrode DP5 features a selection of 5 fixed wavelengths in [nm]. 520 555 590 620 660 Zero point The zero point of the phototrode in [%T]. -100 100 Slope The slope of the phototrode in [mv/%t]. -100 100 Calibration temperature Calibration method Date/Time Performed by The temperature during calibration in [ C]. (Does not appear for "unit" = "mv".) The phototrode can only be manually calibrated. (Does not appear for "unit" = "mv".) (Info field) Date and time of the last calibration. (Does not appear for "unit" = "mv".) (Info field) The name of the user or LabX user logged in during the last calibration. (Does not appear for "unit" = "mv".) (Info field) -20 200 Manual Date/Time Logged-in user LabX user Monitoring expiration dates Monitoring life span Specifies whether to monitor the expiration date of the sensor. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) (Does not appear for "unit" = "mv".) Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) 3.3.1.4 Polarized Sensors Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. mv µa Sensor input The input to which you want to connect the sensor. AB1/SENSOR2 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Monitoring life span Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) METTLER TOLEDO T50 / T70 / T90 23
Setup 3.3.1.5 Temperature Sensors Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. C F K Sensor input The input to which you want to connect the sensor. AB1/PT1000 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Zero point The zero point of the ph sensor in the selected unit. -20 200 [ C] -4.0 392 [ F] 253.2 473.2 [K] Calibration method The titrator fills this field in automatically. The entry is either filled in as "Manual" if the calibration was conducted manually, or it is filled in with the name of the calibration method if the sensor was calibrated with the aid of the "Calibrate" method function. (Info field) Date/Time Date and time of the last calibration. (Info field) Date/Time Performed by Monitoring expiration dates Monitoring life span The name of the user or LabX user logged in during the last calibration. (Info field) Specifies whether to monitor the expiration date of the sensor. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) Manual Name of the calibration method Logged-in user LabX user 24 METTLER TOLEDO T50 / T70 / T90
Setup 3.3.1.6 Conductivity Sensors Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Unit The unit of measure for the sensor to be defined. µs/cm ms/cm µs ms Sensor input The input to which you want to connect the sensor. CB1/Conductivity (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Internal temperature sensor T compensation Temperature coefficient Reference temperature Cell constant Calibration temperature Calibration method Date/Time If the sensor has an internal temperature sensor, you can select "yes" here. In this case the system will automatically make an entry in the sensor setup for the internal temperature sensor. For the temperature compensation, the titrator converts the conductivity to a defined reference temperature. Linear: The conductivity is linearly converted to a reference temperature. The linearity is described by the temperature coefficient [%/ C]. Non-linear: The conductivity is converted to a reference temperature non-linearly, in accordance with the EN norm 27 888. No: The conductivity is determined without temperature compensation. (Appears for "unit" = "µs/cm" or "ms/cm" only.) The temperature coefficient in [%/ C] defines the percentage of the change in conductivity for linear temperature compensation for a temperature increase of 1 C. (Appears for "T compensation" = "linear" only.) The reference temperature in [ C] for the temperature compensation. (Appears for "T compensation" = "linear" or "non-linear" only.) The cell constant in [1/cm] can be entered here. The cell constant is required to convert the measured sensor conductivity [ms µs] into the conductivity [ms/cm µs/cm]. The temperature compensation only affects the conductivity, not the conductance. (Appears for "unit" = "µs/cm" or "ms/cm" only.) You can enter the calibration temperature here. This is required during calibration to determine the temperature-dependent conductivity from conductivity standards. (Appears for "unit" = "µs/cm" or "ms/cm" only.) The titrator fills this field in automatically. The entry is either filled in as "Manual" if the calibration was conducted manually, or it is filled in with the name of the calibration method if the sensor was calibrated with the aid of the "Calibrate" method function. (Appears for "unit" = "µs/cm" or "ms/cm" only.) (Info field) Date and time of the last calibration. (Appears for "unit" = "µs/cm" or "ms/cm" only.) (Info field) Linear Non-linear No 0.001 100 25.0 20.0 0 100-20 200 Manual Name of the calibration method Date/Time METTLER TOLEDO T50 / T70 / T90 25
Setup Performed by Monitoring expiration dates Monitoring life span The name of the user or LabX user logged in during the last calibration. (Appears for "unit" = "µs/cm" or "ms/cm" only.) (Info field) Specifies whether to monitor the expiration date of the sensor. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) (Appears for "unit" = "µs/cm" or "ms/cm" only.) Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) Logged-in user LabX user Temperature compensation is only conducted for the following units of measure: µs/cm and ms/cm (conductivity). Temperature compensation is not conducted for units of measure µs and ms (conductance). 26 METTLER TOLEDO T50 / T70 / T90
Setup 3.3.1.7 Ion-selective Sensors (ISE Sensors) Parameter Explanation Value range Name Select any name for the sensor. Arbitrary Ion charge The ion charge of the ion to be determined with the ISE sensor. -3-2 -1 +1 +2 +3 Unit The unit of measure for the sensor to be defined. pm px ppm mv Sensor input The input to which you want to connect the sensor. AB1/SENSOR1 AB1/SENSOR2 (more depending on equipment) Serial number You can enter a serial number for the sensor here. Arbitrary Calibration Calibration type "segmented" Number of segments Zero point 1 Slope 1 (TCalib) Slope 1 (25 C) Defines the calibration type. (Does not appear for "unit" = "mv".) This parameter is adjusted automatically by the calibration method used. All subsequent parameters will be adjusted to match the number of segments. The system records two numbers per segment (zero point and slope). x-1 segment boundaries are entered for x segments. The maximum possible calibration is for 9 points (resulting in 8 segments). (Does not appear for "unit" = "mv".) (Info field) The zero point of the sensor in the selected unit for the first segment. (Does not appear for "unit" = "mv".) (Info field) The sensor gradient in [mv/unit] for the 1st segment at calibration temperature. (Does not appear for "unit" = "mv".) (Info field) The ISE-sensor gradient in [mv/unit] for the 1st Segment, umgerechnet auf eine Temperatur von 25 C. (Does not appear for "unit" = "mv".) (Info field) Seg. limit 1, 2 Specifies the boundary between Segments 1 and 2 in the selected unit. (Does not appear for "unit" = "mv".) (Info field) Zero point 2 Slope 2 (TCalib) Slope 2 (25 C) etc. The zero point of the sensor in the selected unit for the second segment. (Does not appear for "unit" = "mv".) (Info field) The sensor gradient in [mv/unit] for the 2nd segment at calibration temperature. (Does not appear for "unit" = "mv".) (Info field) The gradient of the ISE sensor for the 2nd segment in [mv/unit], recalculated for a temperature of 25 C (Does not appear for "unit" = "mv".) (Info field) Segmented Linear 3 9-100 100-100 100-100 100-100 100-100 100-100 100-100 100 METTLER TOLEDO T50 / T70 / T90 27
Setup Calibration type "Linear" Zero point Slope (TCalib) Slope (25.0 C) Calibration temperature Calibration method Date/Time Performed by Monitoring expiration dates Monitoring life span The zero point of the ISE sensor in the selected unit. (Zero point, slope and corresponding calibration temperature are required to convert the mv signal of the sensor to the "ph" unit.) (Does not appear for "unit" = "mv".) The slope of the sensor at the calibration temperature in [mv/unit]. (Does not appear for "unit" = "mv".) The slope of the ISE sensor in [mv/unit], based on a temperature of 25 C. This field will update automatically every time the parameters "Slope [mv/ ph]" or "Calibration Temperature [ C]" are changed. (Does not appear for "unit" = "mv".) (Info field) The temperature in [ C] during calibration. (Does not appear for "unit" = "mv".) (Info field for linear calibration) The titrator fills this field in automatically. The entry is either filled in as "Manual" if the calibration was conducted manually, or it is filled in with the name of the calibration method if the sensor was calibrated with the aid of the "Calibrate" method function. (Does not appear for "unit" = "mv".) (Info field) Date and time of the last calibration. (Does not appear for "unit" = "mv".) (Info field) The name of the user or LabX user logged in during the last calibration. (Does not appear for "unit" = "mv".) (Info field) Specifies whether to monitor the expiration date of the sensor. (See "3.8.1 Monitoring the Expiration Date of a Resource") (For "type" = "general titration" only.) (Does not appear for "unit" = "mv".) Specifies whether to monitor the life span of the sensor. (See "3.8.2 Monitoring the Life Span of a Resource") (For "type" = "general titration".) -100 100-100 100-100 100-20 200 Manual Name of the calibration method Date/Time Logged-in user LabX user There are two separate calibration settings for ISE sensors: one for the units of measure pm and px, and one for the unit of measure ppm. When calibrating an ISE sensor in ppm units, the sensor's slope and zero point are specified in px or pm units. 28 METTLER TOLEDO T50 / T70 / T90