me instrument

Upload: ferozmujawar

Post on 07-Aug-2018

213 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/21/2019 ME Instrument

    1/26

    V1.8.3

    ME ExplorerAnalyze your measurements

  • 8/21/2019 ME Instrument

    2/26

      2 (26)

    Table of contents

    1.  CHOOSING A DATABASE ON FIRST TIME STARTUP ........................................................ ............ 3 

    2.  MENUS ...................................................... ................................................................. .................................. 5 2.1.  FILE ...................................................................................................................................................... 5 2.2.  SETTINGS .............................................................................................................................................. 6 2.3.  R ECIEVE ............................................................................................................................................... 7 

    3.  TOOLBAR ................................................................................................................................................... 9 

    4.  NAVIGATING THE DATABASE ................................................................ ........................................... 11 

    4.1.  DATABASE TREE ................................................................................................................................. 11 4.2.  LIST WINDOW ..................................................................................................................................... 12 

    5.  MEASUREMENTS ........................................................ ................................................................. .......... 13 

    5.1.  SAVING DATA TO THE DATABASE .............................................................. .......................................... 13 

    5.2.  EVALUATION ...................................................................................................................................... 13 5.2.1.   Info .......................................................... ................................................................. ..................... 13 5.2.2.  General ............................................................... ................................................................. .......... 16  5.2.3.   FFT .......................................................... ................................................................. ..................... 17  5.2.4.   Evaluation .......................................................... ................................................................. .......... 18 

    5.3.  MANUAL FFT ..................................................................................................................................... 19 5.3.1.   Info .......................................................... ................................................................. ..................... 19 5.3.2.   Manual FFT ....................................................... ................................................................. .......... 19 

    5.4.  BALANCING ........................................................................................................................................ 20 5.4.1.   Info .......................................................... ................................................................. ..................... 20 5.4.2.   Balance ............................................................... ................................................................. .......... 20 

    6.  TREND ....................................................................................................................................................... 21 

    7.  ALARMS .............................................................. ................................................................. ..................... 22 

    7.1.  R EFERENCE LEVEL ALARM................................................................................................................. 22 7.2.  VIBRATION LEVEL ALARM ................................................................................................................. 22 

    8.  EXAMPLES ............................................................................................................................................... 24 

    8.1.  TRANSFERRING DATA FROM THE ME INSTRUMENT............................................................................. 24 8.2.  SAVING A TRANSFERRED MEASUREMENT TO THE DATABASE .............................................................. 25 8.3.  OPENING A MEASUREMENT FROM FILE................................................................................................ 26 

  • 8/21/2019 ME Instrument

    3/26

     ME Explorer Choosing a database on first time startup

    3 (26)

    1. Choosing a database on first time startup

    On the first time startup the program will inquire whether a new database for measurement

    data should be created. If a new database should be created, the program will ask for name

    and location of this database.

    If a new database should not be created, the program will ask for an existing database to be

    selected.

    An example database, Exempeldb.mdb, is automatically installed in the ME Explorer foldertogether with the program.

  • 8/21/2019 ME Instrument

    4/26

     ME Explorer Choosing a database on first time startup

    4 (26)

  • 8/21/2019 ME Instrument

    5/26

     ME Explorer Menus

    5 (26)

    2. Menus

    There are three menus available in ME Explorer: File, Settings and Receive. Each menu is

    described below.

    2.1. File

    On the File menu the commands Open file and Create database are found.Open file will allow an existing datafile to be opened. Files with the suffix .mef, which are

    files created in ME Explorer can be opened. Also older files with the suffix .m42 are

    supported.

    Create database opens a new blank database.

  • 8/21/2019 ME Instrument

    6/26

     ME Explorer Menus

    6 (26)

    2.2. Settings

    On the Settings menu the commands Select Database, Select Language, Enable Deletion and

    Select Unit  are available.

    Select Database. Click Select Database and choose which database that should be opened. An

    example database “exampledb.mbd” is automatically installed with the program in the MEExplorer folder.

    Select Language. To select program language, click Select Language and then choose whichlanguage to use.

     Enable Deletion enables the delete function in the database. An object can not be deleted from

    the database without first activating this function. When the deletion is enabled, the delete 

    function will be displayed when right clicking an object in the database.

    Select Unit . Under Select Unit  the choice can be made whether data should be presented in

    metric or imperial units.

  • 8/21/2019 ME Instrument

    7/26

     ME Explorer Menus

    7 (26)

    2.3. RecieveOn the Receive menu the functions Select COM-Port  and Receive Data are available.

    Select COM-Port . Using this command a COM-port can be selected for transferring data from

    the ME instrument to ME Explorer.

     Receive data. When this command is used, ME Explorer is prepared for receiving data from

    the ME instrument. The transfer can be cancelled any time by clicking the “Cancel” button. 

  • 8/21/2019 ME Instrument

    8/26

     ME Explorer Menus

    8 (26)

    When recieving data, time, date and measurement type are shown.

    To transfer data, the ME instrument must be connected to the computer serial- or USB

    connection. The transfer is started by choosing the command Send  on the instrument Setup 

    menu.

  • 8/21/2019 ME Instrument

    9/26

     ME Explorer Toolbar

    9 (26)

    3. Toolbar

    Open measurement from file Export measurement to file

    Select Database Select Language

     Enable Deletion Select Unit

     Recieve Data

  • 8/21/2019 ME Instrument

    10/26

     ME Explorer Toolbar

    10 (26)

    In addition to these functions there is also the possibility to export a measurement to file. This

    function is found on the Info tab when a measurement is highlighted in the list window as

     below (see also chapter 5.2)

  • 8/21/2019 ME Instrument

    11/26

     ME Explorer Navigating the database

    11 (26)

    4. Navigating the database

    4.1. Database treeA database tree is shown below. The structure of a tree is:

    Site (” MySite”)→Factory (” My Factory”)→Machine (” My Machine”)→Position

    (” My Bearing”)→Point (” My Point”)→Measurement type (” Evalution” , ” Horisontal” etc)

    →Data

    In the database tree, the names of the Site→Factory→Machine→Position→Point nodes are

    optional while the structure and the measurement types are pre-set.

    1.  Evaluation –  Machine evaluations.

    2.  Horizontal –  Manual FFT horizontal direction.

    3.  Vertical –  Manual FFT vertical direction.

    4.  Axial –  Manual FFT axial direction.

    5. 

    Balance –  Balancing data

  • 8/21/2019 ME Instrument

    12/26

     ME Explorer Navigating the database

    12 (26)

    By right clicking a node in the database tree the commands for the respective nodes are

    accessed.

    1.  Site –   Rename, Copy, Paste if the copy command has been used, Add Site, Add

     Factory plus Delete Site if deletion is enabled.

    2. 

    Factory –   Rename, Copy, Paste if the copy command has been used, Add Factory, Add Machine plus Delete Factory if deletion is enabled.

    3.  Machine –   Rename, Copy, Paste if the copy command has been used, Add Machine,

     Add Position plus Delete Machine if deletion is enabled.

    4.  Position –   Rename, Copy, Paste if the copy command has been used, Add Position,

     Add Point  plus Delete Position if deletion is enabled.

    5.  Point –   Rename, Copy, Delete Point  if deletion is enabled and Add Measurement  if

    there is a received measurement that is not yet added to the database.

    6.  Evaluation –  Trend  ,View/Change Setup Alarm Levels 

    The Copy command needs to be executed before the Paste command on a node.

    The command Add Measurement can only be used in the node Point if there is a copied

    measurement. The program automatically select in what measurement category the

    measurement shall be saved. The user must select direction when saving a manual FFT.

    When clicking a measurement type (Evaluation, Horizontal etc), the existing measurements

     below this node in the tree will be shown in the list window.

    4.2. List windowThe list window has two tabs, Database and

    Received. When opening a file, the Received tab will

     be replaced by File.

    On the Database tab, the measurements saved under

    the highlighted measurement type are shown. On

    Received, the measurements transferred from the ME

    instrument are shown. The measurements shown here

    are not yet saved in the database tree. On File, the

    measurements in the loaded file are shown.

    When right clicking a measurement on the Database tab, the following alternatives are

    available: Copy and Delete if deletion is enabled.

    There are no commands in the Received and File tabs.

  • 8/21/2019 ME Instrument

    13/26

     ME Explorer Measurements

    13 (26)

    5. Measurements

    Three types of measurements can be saved in the program, Evaluation , Manual FFT/Demod

    and Balancing. When clicking a measurement in the list window, the measurement data will be displayed in the window to the right.

    5.1. Saving data to the database

    To save data to the database, right click a measurement in the list window and click Copy.

    Then right click the selected Point in the database tree (i.e. MyPoint in the example database)

    and click Add Measurement . The data is now saved also after the program is closed.

    5.2. EvaluationWhen clicking an Evaluation, the following tabs will be available in the window to the right:

    Info, General, Horizontal FFT, Vertical FFT, Axial FFT and Evaluation.

    5.2.1. Info

    On the Info tab, measurement type, time, date and a description are available.

  • 8/21/2019 ME Instrument

    14/26

     ME Explorer Measurements

    14 (26)

    The description can be changed by clicking the Edit Description button and entering a new

    description in the window that opens.

    To submit the new description, click Set Description, or click Cancel  to keep the old one.

    Set As Reference sets the current measurement as an Reference Level Alarm for this specific

     point of measurement. When setting a measurement as alarm reference, the amplitude margin

    and RevolutionsPerMinute margin must also be entered. The amplitude margin defines how

    much the amplitude may exceed the current amplitude at a certain frequency. The RPM

    margin defines how much the machine RPM can be expected to deviate from the current

    RPM.

    The example to the left will result in an alarm

    reference graph that has 10% larger values than the

    current measurement and an allowed machine

    speed deviation of 150 RPM.

    When using the Reference Level Alarm,

    measurements that exceed the reference level will

     be marked as red. Further information about alarmsare found in section 8.

     Export to file. This command is used to save thecurrent measurement to file. A window will open

  • 8/21/2019 ME Instrument

    15/26

     ME Explorer Measurements

    15 (26)

    where the name and location of the file must be submitted. See example below.

  • 8/21/2019 ME Instrument

    16/26

     ME Explorer Measurements

    16 (26)

    5.2.2. General

    General. On this tab information about machine RPM, temperature, vibration levels and

     bearing condition are found.

    Copy To Clipboard  copies the measurement data to the clipboard for use in e.g. MS Office

     programs.

  • 8/21/2019 ME Instrument

    17/26

     ME Explorer Measurements

    17 (26)

    5.2.3. FFT

    Available commands:

     Zoom. To zoom in an area, left click a starting point in the FFT graph, hold the buttondown and drag the mouse so that the square includes the area to be viewed.

    -   Enable Marker . This command enables a marker that indicates the peaks in the FFT

    spectra. To view the data for a specific peak, enable the marker and left click the peak.

    -  The buttons FFT 300 Hz, Demod g-1500 Hz and FFT 12 200 Hz  shows the respective

    spectrum.

    - Copy To Clipboard copies the spectrum to the clipboard as a BMP file for use in e.g.

    MS Office programs.

  • 8/21/2019 ME Instrument

    18/26

     ME Explorer Measurements

    18 (26)

    5.2.4. Evaluation

    Evaluation. On this tab the evaluation results including vibration levels and possible machine

    defects are presented.

    Copy To Clipboard copies the text to the clipboard.

  • 8/21/2019 ME Instrument

    19/26

     ME Explorer Measurements

    19 (26)

    5.3. Manual FFT

    5.3.1. Info

    Time and date when data was collected is presented on this tab. For a description of the buttons, see chapter 6.2.1.

    5.3.2. Manual FFT

    Here the FFT graph is displayed.

    Copy To Clipboard  copies the spectrum to the clipboard as a BMP file for use in e.g. MS

    Office programs.

  • 8/21/2019 ME Instrument

    20/26

     ME Explorer Measurements

    20 (26)

    5.4. Balancing (only ME52)

    5.4.1. Info

    Measurement type, time, date and description of the measurement are available here.

    5.4.2. Balance

    Data from the Reference Run, Trial Run and the final Balancing Results are presented here.

  • 8/21/2019 ME Instrument

    21/26

     ME Explorer Trend

    21 (26)

    6. Trend

    If there is more than one evaluation done on the same bearing, the Trend  command can be

    used. To show the trend, right click the bearing and click Trend  as shown below.

    Below an example is shown:

     Zoom. To zoom in an area, left click a starting point in the FFT graph, hold the button down

    and drag the mouse so that the square includes the area to be viewed.

     Enable Marker . This command enables a marker that indicates the peaks in the FFT spectra.

    To view the data for a specific peak, enable the marker and left click the peak.

    Copy To Clipboard  copies the spectrum to the clipboard as a BMP file for use in e.g. MS

    Office programs.

  • 8/21/2019 ME Instrument

    22/26

     ME Explorer Alarms

    22 (26)

    7. Alarms

    There are two types of alarms, Reference Level Alarm and Vibration Level Alarm.

    7.1. Reference Level Alarm

    The Reference Level Alarm can be used with Evaluation

    measurements. This means that the selected evaluation

    spectra will be used as a references and measurements that

    exceed these references in vibration level will make the

    database tree turn red to indicate the alarm level has been

    exceeded, as seen in the picture.

    The Reference Alarm Level graph will be shown in the

    spectrum as a red line enclosing the FFT graph, as shown below.

    Also see chapter 6.2.1 for a description of how to set the alarm level.

    7.2. Vibration Level Alarm

    The Vibration Level Alarm is used to assess vibration levels in evaluation measurements and

    covers TOTal vibration level, ISO vibration level, bearing condition L or g. Four levels are

    used to categorize machine vibrations:

    Warning Alert Danger

    Green Yellow Orange Red

    Vibration level

    Reference

    Alarm LevelThe vibration level exceeds

    the alarm level graph and

    causes the database tree to

    indicate redFFT spectrum used to

    set the ReferenceAlarm Level

  • 8/21/2019 ME Instrument

    23/26

     ME Explorer Alarms

    23 (26)

    The alarm levels can be adjusted by right clicking Evaluation in the database tree. Thenchoose View/Change Setup Alarm Levels.

    Default values are ISO standard values. Standard levels can be recovered by clicking the Set

    To Default button.

    If any measurement on the Site exceeds a specified vibration level, this branch of the database

    tree will be colored according to the vibration level category (see above), i.e. if a branch is

    colored yellow, this means that a warning is issued for at least one measurement point in this

     branch.

  • 8/21/2019 ME Instrument

    24/26

     ME Explorer Examples

    24 (26)

    8. Examples

    8.1. Transferring data from the ME instrumentTo transfer measurement data from the ME instrument, first specify to which COM port the

    instrument has been connected. To do this, click the Receive menu and then click Select

    COM-port .

    When the COM port has been selected, click Receive Data in the Receive menu. ME Explorer

    now waits for data to be transferred from the instrument. Now enter the Setup menu on the

    instrument and click Send. 

  • 8/21/2019 ME Instrument

    25/26

     ME Explorer Examples

    25 (26)

    When the transfer is done, the recieved measurements are listed on the Received tab in the list

    window.

    8.2. Saving a transferred measurement to thedatabaseRight click the measurement and click Copy. Then right click the Point in the database tree

    where the measurement should be saved and click Add Measurement. 

    Measur ements that have been r eceived but not added to the database wi ll not be saved whenthe program i s closed.

  • 8/21/2019 ME Instrument

    26/26

     ME Explorer Examples

    8.3. Opening a measurement from fileClick Open File in the File menu or click the Open File icon on the toolbar. The program is

     preset to look for files with the suffix .mef (ME Series data files). Older file types with the

    suffix .m42 are also supported and can be opened if the file type is changed to M42 data filesas shown below.

    Click the file to be opened and then click Open.

    The opened measurements are available on the File tab in the list window.