Operating Instructions Excellence Plus Balances XP Models – Part 3
Contents 3 Contents 1 Introduction to Adjustments and Tests............................................................................................................ 4 1.1 1.2 1.3 1.4 1.5 Important to know.................................................................................................................................................... 4 Basic principles for settings and tests...............................................................................................................
Introduction to Adjustments and Tests 4 1 Introduction to Adjustments and Tests These Operating Instructions relate to configuring your XP Balance ready to perform adjustments and tests. Warning: It is essential that you have read the Operating Instructions – Part 1 and Part 2 for the XP balances (separate document). You must also have read the Safety Instructions in Part 1 and assembled and installed the balance according to the operating instructions. The balance must be leveled. 1.
Introduction to Adjustments and Tests 5 1.4 The Configuration Process To prepare your balance for performing routine tests and adjustments is a straightforward three step process: 1. Register your Weights: The information relating to each of your test weights is entered and stored in a weights database. 2. Define the Test Sequence: The Test Sequence describes the type of test (method) to be done and which test weight and tolerance to use. 3.
Accessing the Adjustments and Tests 6 2 Accessing the Adjustments and Tests Access the system settings by either selecting the application menu using the «D» key or the menu for the user settings using the «C» key, and then press the “System” button. The system settings are represented by icons. The individual settings can be called up and changed by touching the icons. The system settings apply to the entire weighing system and therefore to all user profiles and applications.
Accessing the Adjustments and Tests 7 2.1 Overview: Settings for adjustments and tests Test/Adj. Weights Test/Adj. Weight 01 List of 12 Test/Adj. Weights (section 3.1.1) Method Parameters of one Test/Adj. Weight (section 3.1.1) OK Parameters of the selected Method (section 3.2.3) OK OK Test Sequences Test Sequence List of 12 Test Sequences (section 3.2.1) Parameters of one Test Sequence (section 3.2.
Settings for Adjustment and Tests 8 3 Settings for Adjustments and Tests This section describes all the menu options available for defining the parameters relating to the adjustment and testing of your balance. 3.1 Weights When “Test/Adj. Weights” is selected you are provided with a list of weights. Up to 12 external test weights can be configured. Select an undefined weight to be configured or the name of the weight whose parameters you wish to update.
Settings for Adjustment and Tests 9 “Name”: Weight Name can be freely defined and is intended to be an easily recognizable form for the user as an alternative to the Weight ID and Certificate No. (E.g. 20g QK). Max. 20 characters! Name should be unique and unambiguous. “Weight ID”: The ID of the weight is provided on the Weight Certificate.The ID may contain your company specific identification number. Max.
Settings for Adjustment and Tests 10 3.2 Test Sequences Test Sequences define which test is to be performed and with which test weights(s). The user is guided through the test with clear instructions on the balance display. The test should be performed in accordance with GWP® or other QM-System. When configuring the Test Sequence you can define the steps to follow should the balance fail the test (see section 3.2.1). In the example illustrated, Test Sequence 1 has the name “Sensitivity”.
Settings for Adjustment and Tests 11 When “Test Sequences” is selected you are provided with a list of tests. Up to 12 Test Sequences can be configured. Select an undefined Test Sequence to be configured or the name of a Test Sequence whose parameters you wish to update.
Settings for Adjustment and Tests 12 “Preparation Instructions”: Choose between two settings: “None” 8: No preparation instructions will be included in your Test Sequence. This is primarily suitable for Test Sequences that do not normally require user interaction, e.g. Test Sequences using the SERVICE Method.For all other Methods,selection of“Standard” is recommended.
Settings for Adjustment and Tests 13 “Instructions if Failure”: Defines instructions for the user that will be displayed after a test fails. This setting does not depend on the parameter “Action if Failure” and appears each time a Test Sequence fails. Choose between two settings: “None” 8: The test “Name” has failed. “Standard”: The test “Name” has failed. The balance is out of your predefined tolerances. Please contact the person responsible in your company or METTLER TOLEDO Service.
Settings for Adjustment and Tests 14 The test “Name” has failed. Please perform the following: “Advanced”: 1. Check the weighing parameter settings. 2. Perform the test sequence again using the function key or directly using the Start button. Note: To be able to start the Test Sequence using the function key, the relevant Task must already be configured accordingly and the Test Sequence function key enabled.
Settings for Adjustment and Tests 15 3.2.3 The Method A Method describes the type of test to be performed and forms the core of a Test Sequence. The test weight(s) to be used and the associated tolerances must be defined as part of the Method. There are 8 different Methods available. Method Sensitivity Setup Version 2 None “None” 8: No method will be selected “EC”: Method for Eccentricity Test (section 3.2.3.2) “RP1”: Method for Repeatability Test (section 3.2.3.
Settings for Adjustment and Tests 16 Warning: It is important to distinguish between the test tolerances used for the individual weight measurements during the Test Sequence and those that are applied to the results at the end (Methods EC, RP1 and RPT1). 1. Select the Test Weights for the Test On pressing “Test Weight” or “Tare Weight” you can select the desired test weight from the list of previously configured weights.
Settings for Adjustment and Tests 17 3.2.3.2 EC Method for Eccentricity Test The aim of the EC Method (Eccentricity Test) is to ensure that any deviation due to eccentricity is within the tolerances required by the user’s SOP. The result is set equal to the largest of the 4 calculated eccentricities (4-7). Method Sequence: 1. Zero 2. Load Test Weight (Center) 3. Tare 4. Reposition Test Weight (to Front Left) 5. Reposition Test Weight (to Rear Left) 6. Reposition Test Weight (to Rear Right) 7.
Settings for Adjustment and Tests 18 3.2.3.3 RP1 Method for Repeatability Test The RP1 Method calculates the mean value and standard deviation (symbol s) of a measurement series using a single test weight to determine the repeatability of the balance. Method Sequence: 1. Zero 2. Load Test Weight 3. Unload Test Weight 4. Repeat steps 2 and 3 5. Unload all weights 6. Zero Method Sensitivity Setup Version 2 See section 3.2.3.
Settings for Adjustment and Tests 19 3.2.3.4 RPT1 Method for Repeatability Test with Tare The RPT1 Method calculates the mean value and standard deviation (symbol s) of a measurement series using two test weights to determine the repeatability of the balance. In contrast to the RP1 Method an extra test weight is used to simulate the use of a tare container. Method Sequence: 1. Zero 2. Load Tare Weight 3. Tare 4. Load Test Weight 5. Unload Test Weight 6. Repeat steps 4 and 5 7. Unload all weights 8.
Settings for Adjustment and Tests 20 “Tolerances s”: The RPT1 Method uses two result tolerances (method tolerances) s T1 and s T2 which are applied to the calculated standard deviation of the Test Sequence. It functions in the same way as described for T1 and T2 in section 3.2.3.1. If Tolerance s T1 is exceeded, the Repeatability Test will pass with warning. If Tolerance s T2 is exceeded, the Repeatability Test will fail. “Number of Repetitions”: Define the number of weight measurements in the series.
Settings for Adjustment and Tests 21 3.2.3.6 SE2 Method for Sensitivity Test with 2 Testpoints In contrast to SE1 Method, SE2 Method tests the sensitivity of the balance using two test weights. Method Sequence: 1. Zero 2. Load Test Weight 1 3. Unload Test Weight 1 4. Zero 5. Load Test Weight 2 6. Unload all weights 7.
Settings for Adjustment and Tests 22 3.2.3.7 SERVICE Method for Reminder / Early Notification The SERVICE Method is a specialized Method which does not require the use of a test weight. It is usually set up to run in the background to regularly check various dates stored in the balance and will often terminate itself without any interaction from the user or without displaying a dialogue. E.g.
Settings for Adjustment and Tests 23 “Early Warning Alert”: Define how early the warning should appear. E.g. set a reminder for 7 days before the battery is due to be changed. If the test has passed within the Early Warning period, the test will be recorded as “Passed with Warning”. If the Early Warning period has elapsed, the test will fail.The “Instructions if Failure” can provide further instructions to the user (see section 3.2.1).
Settings for Adjustment and Tests 24 3.2.3.8 SET1 Method for Sensitivity Test with Tare and 1 Testpoint The SET1 Method tests the sensitivity of the balance using two test weights. The first test weight is used to simulate the use of a tare container. Method Sequence: 1. Zero 2. Load Tare Weight 3. Tare 4. Load Test Weight 5. Unload all weights 6.
Settings for Adjustment and Tests 25 3.2.3.9 SET2 Method for Sensitivity Test with Tare and 2 Testpoints In contrast to SET1 Method, SET2 Method tests the sensitivity of the balance using three test weights. The second test weight (Tare Weight) is used to simulate the use of a tare container. Method Sequence: 1. Zero 2. Load Test Weight 1 3. Unload Test Weight 1 4. Zero 5. Load Tare Weight 6. Load Test Weight 2 7. Unload all weights 8.
Settings for Adjustment and Tests 26 3.3 Tasks Test Sequences define which test is to be performed and with which test weight(s). Tasks define when the Test Sequence should be executed and how it should be started. Before a Task can be defined, the Test Sequence and the necessary weights must first be defined. Up to 12 Tasks can be defined. When a Test Sequence is assigned to a Task, its name appears in the Task List as shown in the example below. Tasks Adjust/Test Setup Test/Adj.
Settings for Adjustment and Tests 27 3.3.1 Task State The task can be switched on or off in the task status window as illustrated below.Tasks that are switched off will be ignored by the system. Tasks which are switched on may be modified or updated.
Settings for Adjustment and Tests 28 3.3.3 Starting Method Task # Setup Test Sequence Define Starting Method Manual Defined Days Define Defined Users Define OK Starting Method Task # Numeric Keypad Setup Manual On User Change Interval Define On Power On OK Interval Task # Setup Interval Start Time 08:00 Interval 1 Day OK The Test Sequence defined in the Task can be started in 4 different ways.
Settings for Adjustment and Tests 29 Note: If you change the date/time of the terminal, it is recommended to reset the previously calculated next scheduled call-up of the interval tasks. Do the following steps: 1. 2. 3. 4. 5. 6. Go to the corresponding task menu of the interval task. Switch off the task. Close the menu with “OK” to save the changes (the next scheduled task will be erased). Go back to the task menu that had just been switched off. Switch on the task again.
Settings for Adjustment and Tests 30 3.3.5 Defined Users Define which User Profiles have the right to execute the Task. Regardless of the Starting Method used, the Task can only be executed by the selected Users.
Settings for Adjustment and Tests 31 3.4 ProFACT / int. Adj. ProFACT is Professional Fully Automatic Calibration Technology and provides fully automatic internal balance adjustment using an internal weight based on preselected time and/or temperature criteria. Note: For certified balances (Accuracy Class II according OIML) ProFACT / int. Adj. is always active i.e. it is not possible to switch ProFACT off. Adjust/Test Adjust/Test Setup Setup Test/Adj.Weights Weights Test/Adj.
Settings for Adjustment and Tests 32 “Advanced Options”: 3.4.1 With “Advanced Options”, you are able to further expand the sequence of the ProFACT and the internal adjustments using internal tests. Details are found in the following section 3.4.1. Advanced Options ProFACT Weekdays Setup Define Time 1 9:00 Time 2 Off Time 3 Off Temp. Criterion 1 Kelvin Protocol Trigger On Advanced Options ProFACT / int. Adj. Advanced ProFACT / int. Adj.
Settings for Adjustment and Tests 33 “Code to Unblock”: Here, you can define the code to be used for unblocking a blocked balance by an “As Found-”, adjustment or “As Left-” failure. Factory setting: “Z” 3.5 Automatic Adjustment Using an External Test Weight If you are working with an external test weight, this setting can be used to define the days and time when the balance should provide an adjustment reminder.
Settings for Adjustment and Tests 34 3.6 Automatic Adjustment Testing Using an External Test Weight If you want to test the adjustments using an external test weight, this setting can be used to define the days and time when the balance should provide the test reminder. Further information on the (automatic) adjustment process using an external test weight can be found in section 5.4.4 of the Operating Instructions – Part 2. Adjust/Test Setup Test/Adj.
Settings for Adjustment and Tests 35 3.7 Test History The balance always records all test operations that have been made and saves them in a memory which is specially protected against power failure. The options in the Test History allow you to define which results you want to view and/or print out for documentation purposes. Selection Adjust/Test Setup Test/Adj. Weights Define Test Sequences Define Tasks Define ProFACT / int. Adj. On Autom. ext.Adjust Off Autom. ext.
Settings for Adjustment and Tests 36 “GWP History”: When the“Show” button is pressed, a window appears with a list of the results from the Test Sequences. Use the “” and “~” buttons to scroll between pages and the “>>” and “<<” buttons to move between the individual records. The displayed entries can be printed out by pressing the «F» key. The GWP History can store up to 120 entries. Test results will only appear in the history file if enter into GWP History is set to “Yes”.
Settings for Adjustment and Tests 37 Select the box to have the relevant information included i.e. when a box is ticked, the information will be printed. “STD” restores the factory default settings. “OK” saves your modifications. “C” exits the menu without saving. The following record information can be included in the report: “Date/Time”: The date and time of the adjustment are printed in the defined date and time format. Date and Time settings can be found in section 3.
Glossary 38 4 Glossary - GWP Functions The following are technical terms and its definitions used in this manual. Actual Value Specified value on the Weight Certificate of an external weight. Independent of the balance model. Actual Weight The actual weight recorded of the external weight. Adjustment Setting of sensitivity on the balance. This requires at least a reference weight that is placed on the balance manually or by a mechanically-driven device.
Glossary 39 Sensitivity The drift of the weight value divided by the causing load drift. Sensitivity Test Checking of sensitivity. Task Tasks define when the test sequence should be executed, how it should be started and for XP balances, which user should do the test sequence. Before a task can be defined, the test sequence should already be defined. Test Collective term for the checking of a single function or a whole device.
Index 40 5 Index A Action after Failure 14 Action if Failure 12 Actual Value 9 Actual Weight 37 Adj. History 35 Adj. History Selection 35 Adjust/Test 6 Administrator 6 Advanced Options 32 As Found 32 As Left 32 Attempts 12, 14 Automatic Adjustment 33 Automatic Adjustment Testing 34 B Balance ID 37 Balance Info 6 Balance Type 37 Battery Change 22 Blocking 32 C Certificate No.
Index 41 T Tare Weight 19, 24, 25 Task 26 Task 01 - 12 22 Task List 26 Task State 27 Temp. Criterion 31 Temperature 37 Test History 35 Test Sequence Name 11 Test sequences 10 Test Sequence Version Number 11 Test Weight 17, 18, 19, 20, 24 Test Weight 1 21, 25 Test Weight 2 21, 25 Time 33, 34 Time 1...
Leer
GWP® – Good Weighing Practice™ The global weighing guideline GWP® reduces risks associated with your weighing processes and helps to • choose the appropriate balance • reduce costs by optimizing testing procedures • comply with the most common regulatory requirements www.mt.com/GWP www.mt.com/excellence For more information Mettler-Toledo AG Laboratory & Weighing Technologies CH-8606 Greifensee, Switzerland Tel. +41 (0)44 944 22 11 Fax +41 (0)44 944 30 60 www.mt.
