Operating Instructions METTLER TOLEDO AX and MX/UMX Balances
Overview of your AX balance 10 11 9 12 4 15 8 13 14 7 3 2 6 1 4 3 3 5 1 Terminal (for details see Section 4) 2 Display 3 Operating keys 4 SmartSens sensors 5 Cover (cable compartment on underside of terminal) 6 Door follower handle 7 Lower door coupling element 8 Door handle 9 Upper door coupling element 10 Glass draft shield 11 Typename 12 Weighing pan 13 Draft cover 14 Level indicator 15 Leveling screw 16 RS232C serial interface 17 Slot for second interface (o
Overview of your MX/UMX balance 20 1 19 11 5 2 4 3 4 12 5 4 8 10 6 13 9 7 1 1 17 Control unit 2 Terminal (for details see Section 4) 3 Display 4 Operating keys 5 SmartSens sensors 6 Cover (cable compartment on underside of terminal) 7 Door handle 8 Glass draft shield 9 Weighing chamber plate 11 Weighing pan 11 Level indicator 12 Weighing cell 13 Leveling screw 14 Connecting socket for weighing cell 15 RS232C serial interface 16 Slot for second interface (optional) 1
Contents 4 Contents 1 Getting to know your balance .......................................................................................................................... 9 1.1 1.2 1.3 1.4 Introduction .................................................................................................................................................... 9 Introducing the AX and MX/UMX balances ..........................................................................................................
Contents 5 5.11 5.12 5.13 5.14 Date and time ............................................................................................................................................... 36 Energy-saving function and battery change date ............................................................................................... 38 Balance information ......................................................................................................................................
Contents 6 7.3.5 7.4 Special record information for percent weighing ................................................................................................ 65 Working with the “Percent Weighing” application .............................................................................................. 65 8 The “Piece Counting” Application ................................................................................................................. 66 8.1 8.2 8.3 8.3.1 8.3.2 8.3.3 8.3.4 8.3.
Contents 7 10.3.5 10.4 Special record information for minimum weighing ............................................................................................. 87 Working with the “Minimum Weighing” Application ........................................................................................... 88 11 The “Differential Weighing” Application ........................................................................................................ 89 11.1 11.2 11.3 11.3.1 11.3.2 11.3.3 11.3.4 11.
Contents 8 Leere Seite
Section 1: Getting to know your balance 9 1 Getting to know your balance In this Section you will be given basic information about your balance. Please read right through this Section carefully even if you already have experience with METTLER TOLEDO balances; please pay special attention to the safety warnings! 1.1 Introduction Thank you for choosing a METTLER TOLEDO balance.
Section 1: Getting to know your balance 10 These symbols indicate safety notes and hazard warnings which, if ignored, can cause personal danger to the user, damage to the balance or other equipment, or malfunctioning of the balance. This symbol indicates additional information and notes which make using your balance easier, and help you to use it correctly and efficiently. 1.
Section 2: Setting up the balance 11 2 Setting up the balance This Section explains how to unpack your new balance, and how to set it up and prepare it for operation. When you have carried out the steps described in this Section, your balance is ready for operation. 2.1 Unpacking and checking the delivered items When you receive the balance, please check that all parts have been delivered. Open the packaging and carefully remove all the parts.
Section 2: Setting up the balance 12 2.3 Selecting a location and leveling the balance Your balance is a precision instrument. Its accuracy and reliability depend on its being placed in an optimal location: Choose a position which is stable, free from vibration, and as nearly horizontal as possible. The supporting surface must be able to bear the weight of the fully loaded balance safely. A stone table is recommended for MX/UMX balances. Pay attention to the environmental conditions (see technical data).
Section 2: Setting up the balance 13 2.5 Glass draft shield The glass draft shield of your balance can be adapted to the environmental conditions and your weighing style, as well as to the type of weighing and loading. Draft shield on AX balances The position of the coupling elements determines which parts (left-hand, right-hand, and upper door) of the glass draft shield can be opened. Try out various different combinations by moving the 4 coupling elements up and down.
Section 2: Setting up the balance 14 2.6 Adjusting the reading angle and positioning the terminal So that you can work without fatigue, the reading angle of the terminal can be adjusted. For delivery, the terminal is fastened to the balance or control unit. So that you can arrange your workplace optimally, the terminal can be disconnected from the balance or control unit and positioned separately.
Section 2: Setting up the balance 15 Pull the connecting cable gently out of the tension relievers. Unwind the cable. Replace the cover and fasten it with the knurled screw. Fold the terminal forward again into its normal position. Grasp the back of the terminal and pull it slowly upward until it clicks into the top position (steepest reading angle). Press the two stop buttons on the back of the terminal and pull the terminal further upward.
Section 2: Setting up the balance 16 MX/UMX balances Switch off the balance and unplug the cable of the AC adaptor, and any interface cables, from the control unit. It is not necessary to disconnect the control unit from the weighing cell. Grasp the control unit and weighing cell by the sides of the housing and carry them to their new location (observe the notes in Section 2.3 regarding the choice of an optimal location).
Section 3: Simple weighing 17 3 Your first weighing In this Section you will get to know the operating and display elements of your balance which are necessary to carry out simple weighings. This Section provides a first introduction to operating your balance. 3.1 Switching the balance on and off On Off To switch the balance on: Briefly touch the «On/Off» key. After the balance has been switched on, it carries out a short test and is then ready for weighing.
Section 4: Basic operating concepts for the terminal and software 18 4 Basic operating concepts for the terminal and software This Section describes the operating and display elements on your terminal and explains the concept for operating the software on your balance. Please read right through this Section carefully: It is the basis for all the operating steps described in subsequent Sections. 4.
Section 4: Basic operating concepts for the terminal and software 19 6 5 «6» key Before leaving the factory, your balance has been programmed with standard applications (e.g. for normal weighing, piece counting, and density determination). Use this key to select the application you wish to work with. 7 6 «7» key Each application has a large number of settings which can be used to adapt it optimally to the specific task. Use this key to call up the menus to configure the currently active application.
Section 4: Basic operating concepts for the terminal and software 20 4.2.
Section 4: Basic operating concepts for the terminal and software 21 4.3 The software on your balance The software controls all the functions of your balance. It also makes it possible to adapt the balance to your specific working environment. Please read the following Sections carefully; they form the basis for operating your balance.
Section 4: Basic operating concepts for the terminal and software 22 The diagram below shows the interrelationships between the individual levels of the software and gives a first overview of the typical procedure for operating it. Example Work step 1. Select user profile 3 4 or ▼ 4 4 ....... 4 6 or 6 “Home” Reliable 2. Select application ▼ 6 or 6 or 6 or 3. Work 7 ▼ ▼ 4.
Section 4: Basic operating concepts for the terminal and software 23 4.4 Typical working procedure Following below is a brief description of the typical working procedure, leaving out details which depend on specific applications. Switch on the balance: Switch on the balance by briefly pressing the «On/Off» key. After the balance has been switched on, it is in the “Home” profile of the “Weighing” application.
Section 4: Basic operating concepts for the terminal and software 24 7 – System settings apply for the entire weighing system and for all applications. They are also stored in the active user profile (which is shown in the title line). Check that the desired user profile is active before you change any system settings! Note: The system settings can also be accessed from the application menu («6» key). The system settings are described in detail in Section 5.
Section 5: System settings 25 5 System settings In this Section you will learn how you can adapt the weighing system to your requirements. There are system settings for each user profile, as well as for the “Home” profile. As long as a particular user profile is active, its system settings apply irrespective of which application is being used. Note: You will learn the settings for the different applications when the applications are described. 5.
Section 5: System settings 26 5.3 Settings for adjustment and test You can use these menus to make all the settings associated with adjusting (calibrating) your balance. In the Sections below you will find information on all the possible settings for adjustment and test procedures and for recording them. 5.3.1 Displaying the adjustment history (“History”) In the “History” menu you can call up information on adjustment procedures which have already been carried out, and print out corresponding reports.
Section 5: System settings 27 5.3.2 Defining adjustment and test reports In this menu, which has two pages, you can specify the information to be printed on the adjustment and test reports. By touching the appropriate buttons, you can activate the desired information. The checked items of information will be included on the reports. By touching “STD” you can return to the factory settings. To save the changes, touch “OK”, (or touch “C” to quit the input window without saving the changes).
Section 5: System settings 28 5.3.3 “ProFACT” fully automatic adjustment function In this menu you can specify the settings for fully automatic adjustment (calibration) using the internal adjustment weight (“ProFACT”). ProFACT adjusts the balance fully automatically on the basis of pre-selected criteria. The following settings are available: “Protocol trigger” Here you specify which adjustment procedures should be automatically printed on the report.
Section 5: System settings 29 5.3.4 Defining an external adjustment weight If you work with an external adjustment weight, you can define its weight and unit here. (Note: Depending on country-specific regulations, this function may not be available for certified balances). An input window appears which looks like a pocket calculator and can be used like one. Enter the weight of the external adjustment weight. Check the weighing unit: It is shown to the right of the weight.
Section 5: System settings 30 5.4 Specifiying the weighing parameters “Weighing mode” You can use this setting to match the balance to the type of weighing. Select “Universal” weighing mode for all normal weighing processes, or “Dosing” for dispensing liquid or powdery weighing samples. With this setting the balance responds very quickly to minutest changes in weight. The “Sensor mode” setting delivers a raw, unfiltered weighing signal and is only suitable for special applications.
Section 5: System settings 31 “AutoZero” This switches auto-zeroing (“AutoZero”) on and off. If auto-zeroing is switched on, the balance continually corrects any zero point drift that may occur. Factory setting: 5.5 “On” (= switched on) “SmartSens” settings “SmartSens left”, “SmartSens right” You can use this setting to define the function of the left-hand and right-hand “SmartSens” sensors.
Section 5: System settings 32 5.6 Renaming the user profile “User Name” Here you can change the name of the current user profile. Both large and small letters, as well as figures, can be used for the name. The maximum length for the name is 20 characters. Use a name for the user profile that allows unambiguous identification.
Section 5: System settings 33 5.7 Selecting the door function “Door Function” The automatic door function eases your work by making the doors of the glass draft shield open or close automatically whenever specific functions require them to do so. For example, the glass draft shield opens automatically after zeroing or taring, and prompts you to put the material for weighing, or the tare weight, onto the weighing pan.
Section 5: System settings 34 – “Secondary display”: Secondary (auxiliary) display – “Bar code”: Bar code reader – “AT cont. mode”: Peripheral devices which use “AT Continuous Mode”. – “LV11”: METTLER TOLEDO LV11 automatic feeder. The same settings are available for each of these devices. “Off” means that no device of this type should be connected to the RS232C interface. “RS232 fixed” activates the interface for the selected device.
Section 5: System settings 35 “Brightness” Here you can set the brightness of the display. Touch the arrow buttons to adjust the brightness in the range 0% to 100% as required. Each time one of the two arrow buttons is touched, the brightness is instantly adjusted so that the change can be seen immediately. Factory setting: 80% Note: If the balance is not used for 15 minutes, the brightness of the display is automatically reduced. This increases the life of the backlighting.
Section 5: System settings 36 5.10 Resetting to the factory settings Here you can reset all the settings to the factory settings. Important: Resetting affects all the settings (application-dependent settings and system settings) for the active user profile! If you select “Set”, for safety reasons you will be asked whether you really want to reset to the factory settings. Select either “OK” to reset to the factory settings or “C” to keep the existing settings. 5.
Section 5: System settings 37 “Date” Sets the current date. An input window appears which looks like a pocket calculator and can be used like one. Enter the current date in format day–month–year (DD.MM.YYYY), irrespective of which date format you selected for the display. Note: You can also make this adjustment directly in weighing mode by touching the date. A window appears in which you can enter the date directly.
Section 5: System settings 38 5.12 Energy-saving function and battery change date “Standby” Here you can specify how long the balance can remain unused before it switches over to “Standby” mode. “Standby” mode is the same status as when the balance is switched off with the «On/Off» key. To switch the balance on again, the «On/Off» key has to be pressed.
Section 5: System settings 39 5.13 Balance information “Balance ID” Here you can assign an identification to the balance (up to a maximum of 20 characters). This can be used, for example, to identify the balance within a network. The balance identification is also printed out on adjustment records and weighing reports. This makes it possible to link the records and reports to a specific balance.
Section 6: The “Weighing” application 40 6 The “Weighing” Application In this Section we will introduce you to the “Weighing” application. You will find information for practical work with this application, and about the application-specific settings that are available (you will find information about non-application-specific system settings in Section 5). 6.1 Selecting the application 6 6.2 If the “Weighing” application is not already active, touch the «6» key.
Section 6: The “Weighing” application 41 Touching the buttons with the arrow symbols returns you to the second menu page. “Display Unit”: Specifies the unit for displaying the results (Section 6.2.6). “Info Unit”: Specifies an additional weighing unit to be displayed as an information field in the display (Section 6.2.6). “Custom Unit 1”: Defines Custom Unit 1 (Section 6.2.7). “Custom Unit 2”: Defines Custom Unit 2 (Section 6.2.7).
Section 6: The “Weighing” application 42 6.2.2 Select function keys Function keys make it possible for you to access certain functions and settings of the application directly. The function keys are displayed within the application at the bottom edge of the display (see Section 4.2). Touching a key initiates the corresponding function. In this menu you specify which function keys should be available in the application.
Section 6: The “Weighing” application 43 6.2.3 “SmartTrac” and stopwatch “SmartTrac” is a graphical weighing-in aid which makes it easier for you to weigh in to a specified target value. “SmartTrac” appears in the application at the right-hand side of the display below the weighing result (Section 4.2). In this menu you can select the display mode for “SmartTrac” or switch it off. Instead of “SmartTrac”, you can also display a stopwatch.
Section 6: The “Weighing” application 44 “–Tol” and “+Tol”: These information fields show the tolerances on the target weight that were input using the function keys with the same name (Section 6.3.3). “n”, “x”, “s”, “s.rel”, “Sum”, “T+”, “Min”, “Max” and “Diff” These information fields show the following statistical values: “n”: “x”: “s”: “s.
Section 6: The “Weighing” application 45 6.2.6 Selecting weighing units In the “Display Unit” and “Info Unit” menus, you specify which weighing units you wish to work with. By choosing different units, you can have the weighing result displayed in two different weighing units simultaneously. The same selection of units is available for both the “Display Unit” and the “Info Unit”.
Section 6: The “Weighing” application 46 6.2.8 Defining the weighing record In this menu you specify the information to appear on the weighing reports. To make it clearer, this extensive menu is divided into 3 submenus in which you can specify the options for the title of the record, recording the individual values, and the weighing result. Options for the record titles In this submenu, which has two pages, you specify the information to be printed in the title of the weighing record.
Section 6: The “Weighing” application 47 “ID1”, “ID2” and “ID3”: The identifications which were input using the function keys with the same names are printed out (Section 6.3.6). Options for recording the individual values In this submenu you specify the information to be printed on the record for each individual weighing result. Factory setting: Single values are printed with no further information.
Section 6: The “Weighing” application 48 On the second page of the menu, the following information items for the record of the end result are available: 6.2.9 “Diff”: Difference between the lowest and highest weight of the weighing serie. “Sum”: Sum of all individual weights. “Visum”: Adds an extra line to the record for a signature. Parameters for manual record printing You can use the settings in the “Print key” menu to specify the behavior of the «8» key (print report).
Section 6: The “Weighing” application 49 6.2.10 Defining identifications and record titles In the “Identification” menu you specify titles for the weighing records and designations for the identifications. An identical alphanumeric input field is available for all types of input (shown illustrated at right). “Title 1” and “Title 2”: The designations entered appear in the title of the weighing records. The maximum length of the record title is 20 characters.
Section 6: The “Weighing” application 50 “ID1”, “ID2”, and “ID3”: The captured data is treated as identification text and assigned to the corresponding identification (Section 6.3.6). Note: Instead of “ID1”, “ID2”, and “ID3”, the specified designations are displayed (Section 6.2.10). “PreTare”: The bar code data is interpreted as the value for the tare preset (Section 6.3.1). “To Host”: The bar code data is not processed in the balance, but transmitted directly to a connected PC.
Section 6: The “Weighing” application 51 6.3.1 Manually entering the tare preset You normally determine the tare by placing the weighing container on the balance and then touching the «1» key. However, if you are going to work with the same weighing container for a long period of time, you can enter its weight manually instead. This saves you having to tare when you place the weighing container on the balance.
Section 6: The “Weighing” application 52 You can use these two function keys to specify the accuracy with which you wish to weigh in. The selected tolerances are also used by “SmartTrac” (Section 6.3.4). When one or other of the function keys for the minus or plus tolerance is touched, the window for entering the corresponding value appears. The input window is the same as for the target value. Here, too, check the unit which is displayed to the right of the tolerance value.
Section 6: The “Weighing” application 53 SmartTrac 4 The target value is represented by the vertical line. During weighing-in, triangular segments appear to the left and right of this line, which disappear toward the point at the top as the fine range is approached. When the fine range is reached, a pointer appears which makes precise fine-dispensing to the target value easy. SmartTrac 5 The target value is represented by the vertical line located between the two tolerance marks.
Section 6: The “Weighing” application 54 Place the first sample on the weighing pan and wait until the stability detector is extinguished. Touch the “M+” function key to accept the weight into the statistics. The weight value measured is then printed out. Note: If you have activated automatic weight transfer (Section 6.2.5), the first weight of a series must be accepted with the function key “M+”. When that has been done, the weight is automatically accepted without a keystroke.
Section 6: The “Weighing” application 55 ------- Statistics ----Nominal 215.500 g -Tol 1.5 % +Tol 2.5 % 1 2 3 4 5 n T+ x sd rsd Min Max Diff Sum 214.3149 214.3144 215.1928 215.9100 216.0705 g g g g g 215.16052 0.83853 0.39 214.3144 216.0705 1.7561 1075.8026 5 2 1 g g % g g g g Visum You can produce the record for the weighing results by touching the “Print” key. The illustration on the left shows an example of a record.
Section 6: The “Weighing” application 56 The example on the left shows the balance display after the ID function keys, and the ID information fields, have been activated. The practical example described below is based on the designations shown in the illustration above. In the application, when you process a job for a client, and when weighing is complete, touch the “ID1” (“Client”) function key and a field appears to input the client (see illustration at left).
Section 6: The “Weighing” application 57 6.4 Adjusting the balance and checking the adjustment At the factory your balance was set for fully automatic adjustment using ProFACT. ProFACT adjusts and linearizes the balance automatically as soon as a change in environmental conditions makes it necessary. However, you can also carry out a manual adjustment and/or check using the internal weight, or an external weight, at any time.
Section 6: The “Weighing” application 58 “An error has occurred while adjusting and the adjustment has been terminated”. This message also appears if you terminate the adjustment yourself. You can repeat the adjustment process or return to the application by touching “OK”. 6.4.3 Adjustment using an external weight By touching this function key, you start adjustment (calibration) of the balance using an external calibration weight.
Section 6: The “Weighing” application 59 The balance confirms successful completion of the adjustment. Touch “OK” to return to the application. If a printer is connected to the balance, a record of the adjustment is automatically printed according to the system settings you made for adjustment and test (Section 5.3). An example of an adjustment record is shown in Section 6.4.6.
Section 6: The “Weighing” application 60 6.4.6 Adjustment and test records (examples) Record of an internal or ProFACT adjustment Record of an external adjustment - Internal adjustment — 17.Apr 2000 11:51 - External adjustment — 17.Apr 2000 11:55 METTLER TOLEDO User METTLER TOLEDO User User 3 User 3 Type AX204 SNR 1234567890 Balance Lab. RF/1A Weight ID A200-F1/1 Certificate No. MT 414A Type AX204 SNR 1234567890 Balance Lab. RF/1A Weight ID A200-F1/1 Certificate No.
Section 6: The “Weighing” application 61 Adjustment history record –––——— History ————––– 17.Apr 2000 12:02 METTLER TOLEDO User User 3 Type AX204 SNR 1234567890 Balance Lab. RF/1A Weight ID A200-F1/1 Certificate No. MT 414A 01 17.Apr 2000 10:04 internal 23.8 °C 02 17.Apr 2000 10:19 internal 23.8 °C 03 17.Apr 2000 10:39 internal 24.0 °C 04 17.Apr 2000 10:49 internal 24.0 °C . . . 50 22.Apr 2000 16:51 internal 23.
Section 6: The “Weighing” application 62 6.4.7 Formula used for calculating the statistics Calculation of the mean and standard deviation Designations xi := Individual values from a series of n measurement values i = 1...n x := Mean and s standard deviation of these measurement values The formula for the mean is 1 n x = ∑ xi n i =1 (1) The formula used in the literature for calculating the standard deviation s ( ) 2 1 ∑ xi − x n −1 (2) is not suitable for numerical calculation.
Section 7: The “Percent Weighing” Application 63 7 The “Percent Weighing” Application In this Section we will introduce you to the “Percent Weighing” application. You will find information for practical work with this application and about the application-specific settings that are available (you will find information about non-application-specific system settings in Section 5). 7.
Section 7: The “Percent Weighing” Application 64 The following settings are available for the “Percent Weighing” application: With only a few exceptions, these settings are identical to those for the “Weighing” application (Section 6.2). Only the settings that are different are described below. These are in the following menus: “Function keys”: Additional function keys are available for percent weighing. “Info field”: Additional information fields are available for percent weighing.
Section 7: The “Percent Weighing” Application 65 7.3.4 Additional unit for percent weighing In the menus “Display Unit” and “Info Unit” there is the additional setting “%” (percent). 7.3.5 Special record information for percent weighing In the submenu with the options for recording the individual values you have additional settings for percent weighing: “Reference%”: The reference value in percent is printed on the report.
Section 8: The “Piece Counting” application 66 8 The “Piece Counting” Application In this Section we will introduce you to the “Piece Counting” application. You will find information for practical work with this application, and about the application-specific settings that are available. (You will find information about non-application-specific system settings in Section 5). 8.1 Introduction to the “Piece Counting” application The “Piece Counting” application allows you to count pieces.
Section 8: The “Piece Counting” application 67 The “Piece Counting” application has the settings described below. With only a few exceptions, these settings are identical to those of the “Weighing” application (Section 6.2). Only those settings which are different are described here. These relate to the following menus: “Function keys”: Additional function keys are available for piece counting. “Info field”: Additional information fields are available for piece counting.
Section 8: The “Piece Counting” application 68 8.3.4 Specifying the fixed reference number of pieces You can use the “FixPcs” menu to specify the fixed reference number of pieces you wish to work with. The selected number is assigned to the “Fix10” function key, whose designation changes correspondingly (e.g. to “Fix20”). 8.3.5 Additional unit for piece counting In the “Display unit” and “Info unit” menus there is an additional setting “PCS” (= “Pieces”). 8.3.
Section 8: The “Piece Counting” application 69 If you have placed a different number of reference pieces on the weighing pan than the number corresponding to the “Fix...” function key (e.g. 32 pieces), touch the “VarPcs” (“Variable pieces”) function key. An input field appears in which you can enter the number of pieces. After you confirm the number of pieces, the balance determines the reference. The information fields then display the reference number of pieces and the average piece weight.
Section 9: The “Density” Application 70 9 The “Density” Application In this Section we will introduce you to the “Density” application. You will find information for practical work with this application and about the application-specific settings that are available (you will find information about non-application-specific settings in Section 5). 9.
Section 9: The “Density” Application 71 9.3 Settings for the “Density” application A number of application-specific settings are available for density determination which you can use to adapt the application to your needs. Note: Your settings apply for the currently active user profile. Make sure that the desired profile has been selected before you make the settings. 9.3.1 Overview The application-dependent settings can be accessed with the «7» key.
Section 9: The “Density” Application 72 9.3.3 Selecting the auxiliary liquid In this menu you can specify the auxiliary liquid you wish to work with. This setting is only relevant if you are determining the density of solids! You can choose from the following auxiliary liquids: “Water”: Distilled water is used as the auxiliary liquid. The density of distilled water at various different temperatures is stored in the balance (density table from 10 °C to 30 °C) so it need not be known.
Section 9: The “Density” Application 73 On the last page of the menu there are the following function keys for density determination: “Sample ID”: You can use this function key to assign an identification to each sample whose density you determine, so you can identify it unambiguously when the results are displayed. “Sample No.”: You can use this function key to assign a number to each sample whose density you determine. This makes it easier to identify the individual samples of a sequence.
Section 9: The “Density” Application 74 9.3.6 Special record information for density determination In the “Protocol” menu there are special settings available for density determination. In the submenu with the options for reporting the individual values you have additional settings for density determination: “Sample ID”: Identification of the samples. “Sample No.”: Numbers of the samples. “Method”: Selected method of density determination. “Aux.
Section 9: The “Density” Application 75 9.3.8 Specifying the number of decimal places for the result In the “Density decimal points” you can specify the number of decimal places for displaying the result of the density determination. You can choose between the following settings: “1” ... “5”: The result of the density determination is shown in the corresponding information field and on the reports with the number of decimal places selected. Factory setting: 9.4 “3”.
Section 9: The “Density” Application 76 If you use an auxiliary liquid other than water or ethanol, activate the function key “Density AL” and use this key to enter the density of the auxiliary liquid being used at the current temperature. This is necessary because there are no density tables in the balance for liquids other than water and ethanol. The value entered appears in the information field with the same name, which you should also activate.
Section 9: The “Density” Application 77 9.4.2 Determining the density of liquids using a sinker To determine the density of liquids, use is often made of a sinker whose volume is known. The sinker is first weighed in air, and then in the liquid whose density is to be determined. The difference in weight gives the buoyancy force which is used by the software to calculate the density. In the application-specific settings, for the method select “Liquid” (Section 9.3.2).
Section 9: The “Density” Application 78 9.4.3 Determining the density of pasty substances using a gamma sphere The density of pasty substances is usually determined using a gamma sphere whose volume is known. The pasty substance is weighed first without, and then with, the gamma sphere. In the application-specific settings select the method “Gamma sphere” (Section 9.3.2). Activate the suitable function keys and information fields (Sections 9.3.4 and 9.3.5).
Section 9: The “Density” Application 79 9.4.4 Determining the density of liquids using a pycnometer The density of liquids is often determined using a pycnometer, which is a glass container whose own capacity and weight are known. The liquid is poured into the pycnometer and weighed. In the application-specific settings select the method “pycnometer” (Section 9.3.2). Activate suitable function keys and information fields (Sections 9.3.4 and 9.3.5).
Section 9: The “Density” Application 80 9.4.5 Determining the density of porous solids To determine the density of porous solids the solid is first weighed in air. In contrast to non-porous solids this requires additional use of an oil bath which seals the pores of the solid with oil before it is weighed in the auxiliary liquid. In the application-specific settings select the method “Solid porous” (Section 9.3.2) and specify the desired auxiliary liquid (Section 9.3.3).
Section 9: The “Density” Application 81 After a short pause you will be prompted to immerse the oil-soaked solid in the auxiliary liquid. If you are working with the below-the-balance hanger, place the container with the auxiliary liquid beneath the hanger. If you are working with the optional density kit, follow the instructions delivered with the kit. In either case, ensure that the solid is immersed at least 1 cm in the liquid and that there are no air bubbles in the container.
Section 9: The “Density” Application 82 9.5.2 Printing out the result of a density determination You can use the «8» key to print out the result of the current density determination. Shown at left is an example of a report together with explanatory notes. ------ DENSITY ----Mettler-Toledo GmbH LAB RF The example at left shows an example of a report of a density determination of a solid. Your settings in the “Protocol” menu determine which items of information are printed out. 08.
Section 9: The “Density” Application 83 9.5.3 Using the density statistics Statistics are maintained for the density determinations. They store the last 10 results of density determinations you made and accepted into the statistics. Note: The statistics do not differentiate between the methods used for the density determinations, but simply store the last 10 results made and accepted. To use the density statistics, the two function keys “Result” and “CL Sum” must be activated (Section 9.3.4).
Section 9: The “Density” Application 84 9.6 Formulas Used for Calculating Density The “Density” application is based on the formulas shown below. Formula for determining the density of solids: ρ= A (ρ – ρ ) + ρ 0 L L A–B V=α A–B ρ0 – ρL ρ = Density of the sample A = Weight of the sample in air B = Weight of the sample in the auxiliary liquid V = Volume of the sample ρ0 = Density of the auxiliary liquid ρL = Density of air (0.0012 g/cm3) α = Balance correction factor (0.
Section 10: The “Minimum Weighing” Application 85 10 The “Minimum Weighing” Application In this Section we will introduce you to the “Minimum Weighing” application. You will find information for practical work with this application and about the application-specific settings that are available (you will find information about non-application-specific settings in Section 5). 10.
Section 10: The “Minimum Weighing” Application 86 10.3 Settings for the “Minimum Weighing” application A number of application-specific settings are available for minimum weighing which you can use to adapt the application to your needs. Note: Your settings apply for the currently active user profile. Make sure that the desired profile has been selected before you make the settings. 10.3.1 Overview The application-dependent settings can be accessed with the «7» key.
Section 10: The “Minimum Weighing” Application 87 10.3.3 Special information fields for minimum weighing On the first page of the information fields menu there are three additional settings for minimum weighing: “MinWeigh”: This information field shows the minimum weighing value required. The value depends on the reference tare and is programmed on the balance by the service technician. “Ref. Tare”: This information field shows the reference tare used as the basis for the required minimum weighing.
Section 10: The “Minimum Weighing” Application 88 10.4 Working with the “Minimum Weighing” Application In this Section you will learn how to work with the “Minimum Weighing” application. When you work with “Minimum Weighing” you can, of course, also specify target values and tolerances and use statistical functions and identifications. You already know these possibilities from the “Weighing” application (Section 6.3) so they will not be described again here.
Section 11: The “Differential Weighing” application 89 11 The “Differential Weighing” Application In this Section we will introduce you to the “Differential Weighing” application. You will find information for practical work with this application, and about the application-specific settings that are available. (You will find information about non-application-specific system settings in Section 5). 11.
Section 11: The “Differential Weighing” application 90 11.3 Settings and functions for the “Differential Weighing” application The “Differential Weighing” application has various application-specific settings and functions which you can use to adapt it to your needs. Note: Your settings apply for the active user profile. Check that the desired profile has been selected before you make the settings. 11.3.1 Overview The application-specific settings and functions can be accessed with the «7» key.
Section 11: The “Differential Weighing” application 91 11.3.3 Processing a series In this menu you can make the following settings for the selected series: “Designation”: A dialog field appears in which you can change the default designation of the series (Series 1 ... Series 10). “Number of samples”: In this dialog field you specify how many samples the current series should contain. Note: The maximum number of samples the balance can manage is 99.
Section 11: The “Differential Weighing” application 92 On the second page of the function key menu the following settings can be made for differential weighing: “3.Residual weight”: You can use this function key to perform a third differential weighing of a sample. “Info”: You can use this function key to call up the measurement values of the samples. “No tare”: This function key is used to perform differential weighing without taring.
Section 11: The “Differential Weighing” application 93 “Diff. weigh 2 time”: Time of second differential weighing of a sample. “2.Residual weight”: Weight value of a sample as determined by second differential weighing. “Diff. weigh 3 time”: Time of third differential weighing of a sample. “3.Residual weight”: Weight value of a sample as determined by third differential weighing . “Signature”: Factory setting: Line for signing the report. “Series ID”, “Samples ID”, “Tare”, “Initial weight”, “1.
Section 11: The “Differential Weighing” application 94 11.4 Working with the “Differential Weighing” application In this Section you will learn how to work with the “Differential Weighing” application. It is assumed that the “Differential Weighing” application has already been selected. 11.4.1 Defining a series Touch the «7» key, and in the application-specific settings select the series you wish to define. There are 10 series available in all.
Section 11: The “Differential Weighing” application 95 11.4.2 Differential weighing with automatic process In this description it is assumed that you have selected an automatic process for the serie you wish to process. It is also assumed that the factory settings have been selected for the function keys and information fields. Preparatory tasks The currently active series is displayed in the “Series ID” information field.
Section 11: The “Differential Weighing” application 96 After the tare has been determined you are prompted to do the initial weighing. Place the weighing sample in the weighing container and then touch the “OK” key to perform the initial weighing. While the weight is being determined, a corresponding message and the hourglass are displayed. With this operation, taring and initial weighing of the first sample of the series are complete.
Section 11: The “Differential Weighing” application 97 WIth this operation, differential weighing of the first sample of the series is complete. The balance then automatically starts the process described above for differentially weighing all further samples of the series. Note: You can terminate each differential weighing process at any time; the values determined until then remain saved.
Section 11: The “Differential Weighing” application 98 11.4.4 Printing the results of a differential weighing You can use the «8» key to print out the results of the current differential weighing. Depending on your settings, either the selected sample or the entire series is printed on the report. An example of a report is shown below. - Differential weighing 28.Feb 2001 17:30 User User 7 Series-ID Meranine 414 Samples-ID M414/2 T 29.5064 g NE 4.8274 g NR 1 1.7600 g Diff. 1 -3.0674 g Diff.% 1 -63.
Section 11: The “Differential Weighing” application 99 11.4.6 Differential weighing without tare determination For special applications (e.g. filter weighings) the tare determination can be suppressed. This eliminates an operation. For a sample series to be processed without tare determination, the “No tare” function key must be activated (Section 11.3.5). After the “No tare” function key has been activated, a confirmation question appears.
Section 12: Loading Applications via the Internet 100 12 Loading Applications via the Internet In the interest of our customers METTLER TOLEDO continuously develops new applications. The existing applications are also continuously developed further and improved. To make it as easy as possible for you as our customer to gain rapid benefit from these further developments METTLER TOLEDO provides the latest versions on the Internet.
Section 12: Loading Applications via the Internet 101 12.4 Loading the application package onto your balance After you have downloaded the application package from the Internet, before you can transfer it to your balance you must connect the balance to the serial interface of your computer with the RS232 cable.
Section 12: Loading Applications via the Internet 102 When you have made the necessary settings and checked the connection, you can start the updating process. You do this by clicking on “Start Software Update Procedure”. Follow the instructions of the e-Loader which will guide you through the updating procedure step by step. The e-Loader will ask you whether you wish to backup the current balance settings onto your computer. We recommend you to make this backup.
Section 13: Further important information 103 13 Further important information 13.1 Error messages occurring during normal operation Most error messages appear in plain text directly in the respective application, and usually accompanied by a text describing how to correct the error. Error messages of this type are self-explanatory and therefore not mentioned below.
Section 13: Further important information 104 13.3 Cleaning and service Periodically clean the weighing pan, the draft cover, the housing, and the terminal of your balance using the brush supplied with it. To clean the weighing chamber thoroughly, pull the draft cover and/or draft disk (which on the UMX balance is made up of several parts) and the weighing pan vertically up and off (on the MX/UMX balances it may be necessary to turn the weighing pan slightly to remove it).
Section 14: Technical data and accessories 105 14 Technical data and accessories In this Section you will find the most important technical data for your balance. Accessories from the METTLER TOLEDO range increase the functionality of your balance and open up additional areas of application. In this Section you will find a list of the options currently available. 14.
Section 14: Technical data and accessories 106 14.2 Model-specific data Technical data (limit values) Model UMX2 UMX5 Comparator MX5 Maximum load 2.1 g 5.1 g 5.1 g Maximum load, fine range — — — Readability 0.0001 mg 0.0001 mg 0.001 mg Readability, fine range — — — Repeatability (sd) at full load 1) 0.00025 mg 0.0004 mg 0.0009 mg Repeatability (sd) (at gross load) 1) 0.00025 mg (0.2 g) 0.00025 mg (0.2 g) 0.0008 mg (0.2 g) Linearity 0.001 mg 0.004 mg 0.
Section 14: Technical data and accessories 107 Technical data (limit values) Model AX26 Comparator AX26DR AX105DR Maximum load 22 g 21 g 110 g Maximum load, fine range – 3g 31 g Readability 0.001 mg 0.01 mg 0.1 mg Readability, fine range – 0.002 mg 0.01 mg Repeatability (sd) at full load 1) 0.002 mg 0.006 mg 0.05 mg Repeatability (sd) (at gross load) 1) 0.0015 mg (1 g) 0.002 mg (1 g) 0.015 mg (10 g) Linearity 0.006 mg 0.008 mg 0.
Section 14: Technical data and accessories 108 Technical data (limit values) Model AX205 AX205DR AX204 Maximum load 220 g 220 g 220 g Maximum load, fine range — 81 g — Readability 0.01 mg 0.1 mg 0.1 mg Readability, fine range — 0.01 mg — Repeatability (sd) at full load 1) 0.03 mg 0.06 mg 0.07 mg Repeatability (sd) (at gross load) 1) 0.015 mg (10 g) 0.015 mg (10 g) 0.05 mg (10 g) Linearity 0.1 mg 0.15 mg 0.2 mg Eccentric load deviation at 1/2 maximum capacity 2) 0.25 mg 0.
Section 14: Technical data and accessories 109 Technical data (limit values) Model AX204DR AX304 AX504 Maximum load 220 g 310 g 510 g Maximum load, fine range 81 g — — Readability 1 mg 0.1 mg 0.1 mg Readability, fine range 0.1 mg — — Repeatability (sd) at full load 1) 0.6 mg 0.1 mg 0.1 mg Repeatability (sd) (at gross load) 1) 0.05 mg (10 g) 0.07 mg (10 g) 0.07 mg (10 g) Linearity 0.3 mg 0.3 mg 0.4 mg Eccentric load deviation at 1/2 maximum capacity 2) 0.25 mg 0.5 mg 0.
Section 14: Technical data and accessories 110 Technical data (limit values) Model AX504DR Maximum load 510 g Maximum load, fine range 81 g Readability 1 mg Readability, fine range 0.1 mg Repeatability (sd) at full load 1) 0.6 mg Repeatability (sd) (at gross load) 1) 0.1 mg (10 g) Linearity 0.5 mg Eccentric load deviation at 1/2 maximum capacity 2) 0.6 mg Sensitivity offset 3) 7.0x10-6 Sensitivity temperatur drift 4) 0.0001%/°C Sensitivity stability 5) Weighing time typical 0.
Section 14: Technical data and accessories 111 14.3 Dimensions Dimensions of the AX balances 170 151.5 90.6 60 48 155.5 222 293 239 69 9.5 10.9 190 305.
Section 14: Technical data and accessories 112 Dimensions of the MX/UMX balances 35.5 42 53 113.5 260 174 26 287.5 67.5 128 116 100 80 114 4° 10 220 365.5 127.5 150 30 5.8 60 94 210 88 155.
Section 14: Technical data and accessories 113 14.4 Specifications of the RS232C interface Interface type: Voltage interface according to EIA RS-232C/DIN 66020 (CCITT V24/V.28) Max. cable length: 15 m Signal level: Outputs: Inputs: +5 V ... +15 V (RL = 3 – 7 kΩ) +3 V ... 25 V –5 V ... –15 V (RL = 3 – 7 kΩ) –3 V ...
Section 14: Technical data and accessories 114 14.5 MT-SICS Interface commands and functions Many of the balances and scales used have to be capable of integration in a complex computer or data acquisition system. To enable you to integrate balances in your system in a simple manner and utilize their capabilities to the full, most balance functions are also available as appropriate commands via the data interface.
Section 14: Technical data and accessories 115 The MT-SICS commands listed below is a selected list of available commands. For additional commands and further information please refer to the Reference Manual “MT-SICS for AX/MX/UMX balances 11780417” downloadable from the Internet under www.mt.com/AX. S – Send stable weight value Command S Send the current stable net weight value. SI – Send value immediately Command SI Send the current net weight value, irrespective of balance stability.
Section 14: Technical data and accessories 116 14.6 Accessories You can increase the functionality of your balance with accessories from the METTLER TOLEDO range. The following options are available: Printer RS-P42: Printer for recording results 229265 LC-P43 (with LC option only): printer for recording results 229114 LC-P45: Printer with built-in applications (GLP compliant calibration and adjustment records, statistical evaluations, totalization, etc.
Section 14: Technical data and accessories 117 Datenmanagement Software LabX pro balance: Networkable data management software, 21 CFR Part 11 ready 11120301 LabX light balance: Data management software for stand-alone applications 11120317 Remote AX Software: For extended balance control commands 21900935 Pipette calibration options and software PC-Volume Option 1: PC Software 21900791 PC-Volume Option 2: Moisture trap for AX balances with 5 and 6 places 21900794 PC-Volume Option 3: Options 1 an
Section 14: Technical data and accessories 118 LV11 LV11 feeder 21900608 Metal doors for use on AX balances when operating with a METTLER TOLEDO LV11 feeder 11100088 Antitheft device Universal lock 11600361 Transport case Transport case for AX balances (with room for balance, AC adapter, and accessories) 11100090 Transport case for MX/UMX balances (with room for balance, AC adapter, and accessories) 11100091 Funnel set Funnel set for MX/UMX balances 211220 Protective covers Protective cover for
Section 15: Appendix 119 15 Appendix In this Section you will find aids for converting weight units, creating SOPs, and a comprehensive index for the entire operating instructions. 15.1 Conversion table for weight units Unit Gram g Milligram mg Ounce oz (avdp) Troy ounce ozt Grain GN Pennyweight dwt 1g 1 1000 0.03527396 0.03215075 15.43236 0.6430149 1 mg 0.001 1 0.0000352740 0.0000321508 0.01543236 0.000643015 1 oz 28.34952 28349.52 1 0.9114585 437.500 18.22917 1 ozt 31.
Section 15: Appendix 120 15.2 SOPs - standard operating procedures In the documentation of a GLP test, the SOPs are a small, but very important part. Practical experience confirms that SOPs written in-house are followed much better than SOPs written by an an external, anonymous source. You will find below a brief overview of the responsibilities in relation to SOPs, as well as a checklist for creating an SOP.
Section 15: Appendix 121 Contents of the SOP 1. Introduction and objective 2. Material required 3. Description of work steps 4. Description of documentation 5. Data processing and evaluation 6. Documents, samples, etc., to be preserved 7.
Section 16: Index 122 16 Index Symbols D H 21 CFR Part 11 117 Data backup 102 Data backup function 102 Date 19, 37, 46 Date Format 36 Datenmanagement Software 117 Decimal places 75 Delivered items 11 “Density” Application 70 Density determination 70 Density determination of solids 70 Density kit 70 Density statistics 83 Differential Weighing 89 “Differential Weighing” Application 89 Dimensions 111, 112 Display 19 Draft cover 11 Help function 18 “Help” function 24 “Home” profile 21 A AC adapter 10,
Section 16: Index 123 “Piece Counting” Application 66 Piece weight 68 Pipette calibration 117 Power supply 12, 105 Power supply voltage 10, 12 ProFACT 28, 57 Pycnometer 70, 79 Stopwatch 19, 43, 53 Sum 44, 55 Switch the balance off 17 Switch the balance on 17 Symbols 20 System settings 25 Q Tare preset 42, 43, 47, 50 Target value 64 Target weight 42, 43, 46, 51, 55 Taring 17 Technical data 105 Terminal 18 Test 26 Time 19, 36, 37, 46 Time Format 37 Tolerances 42, 44, 46, 51, 63 Touch function 35 Touch Scre
To protect your METTLER TOLEDO product’s future: METTLER TOLEDO Service assures the quality, measuring accuracy and preservation of value of all METTLER TOLEDO products for years to come. Please send for full details about our attractive terms of service. Thank you. *P11780394* Subject to technical changes and to changes in the accessories supplied with the instruments. © Mettler-Toledo GmbH 2004 11780394C Printed in Switzerland 0404/2.
