Vibromera OU

Estonia,Kreenholmi 39v, Narva linn, Ida-Viru maakond, 20303       tel.+372 8801884
E-mail: info@vibromera.eu    vibromera@gmail.com


Portable balancer "Balanset-4"

1. Introduction

 Balanset-4 is 4-channels portable balancer  used to balance rigid rotors in their own bearings (in-situ) or as measuring system in the balancing machines. It provide (1..4)-plane dynamic balancing services for fans, grinding wheels, spindles, crushers, pumps and other rotating machinery. Balancing software provides the correct balancing solution for (1..4)-plane balancing automatically. 

 Balanset-4 is simple to use for non-vibration experts.
Balanset-4 includes:


  • Interface unit
  • 4 vibration sensors
  • 1 optical sensor (laser tachometer)+ magnetic stand
  • scale
  • Software ( notebook not included - supplied by additional order)

    Specifications:
    4x vibration sensors based on Analog Devices ADXL series.
    1 x optical sensor (laser)
    1 x interface module with software for PC connection
    Software provides measuring vibration, phase angle, calculation of value and angle of correcting mass.

    Details:
    Amplitude vibration range 0.005-100 mm/sec
    Vibration frequency range 5  - 300 Hz
    Accuracy - 5% of full scale
    Correction planes 1 or 2 or 3 or 4
    Rotation speed measuring 150-60000   rpm
    Phase angle measurement accuracy +-1 degree
    Power  -  140- 220VAC 50Hz
    Weigh - 1.4 KG

  • 2. Prepare to work. Software and hardware setup for two-plane balancing.

    2.1  Driver installation
    Install drivers and Balanset-4 software from installation flash disk.
    Insert USB cable to computer USB port. Interface module supplied from USB port.
    Use  shortcut to run the program.

    2.2  Sensor installation
    Install sensors as shown  on the fig. 1,2,3

    Connect cables 
    - vibration sensors to connectors X1 and X2
    - phase laser sensor to connector X3
    fig.1 Two-plane balancing scheme



     Install reflector mark on the rotor and check RPM value on the phase sensor when rotor rotate. 

     

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    fig.2  Phase sensor settings

    3. Balancing procedure

    fig.3 Main window for 4-plane balancing

    After sensors install click on "F7 - Balancing" button and set balancing parameters. Then click "F9-Next"


    fig.4 Balansing settings


     Then make step-by-step operations  as shown in the Table 1 below.


    Table 1
    Run 0 - Start-up without test weight.
      2. Run  the  machine  at   its operating  speed (be sure that operating  speed is far from resonance frequency of construction) 
      3. Click on F9-Start and measure  the vibration  level and  phase angle  in turn without test weight.
    Duration of the measuring process  may amounts  2-10 sec.




    fig.7 4-plane balancing window. Original vibration


    Run  1-4 - Test weight in plane 1-4
    7. Mount a trial weight of  suitable size in plane 1(2,3,4) . 
    8. Start the machine again, click on F9-Runand measure the vibration level and phase angle once more.
    9. Stop  the machine and remove  the  test  weight
    Step 4 - Calculation
    10. The values of the correction weights  and angles required will be calculated automatically and shown in popup form.  

    fig.5 4-plane balancing. Correction weights calculation

    fig.6 Two plane balancing. Correction weight mounting


    RunC
     11. Mount the correction (balance) weights  at the  positions   indicated  in popup form  at the same radius   as the  test (trial) weights (as shown in the figure in right column).  
     12. Start up  the  machine  again and   measure the  amount of residual  unbalance in  the rotor , to see how  successful  the  balancing  job has been .  

    After balancing you can save influence coefficient balancing (F8- coefficients) and other information (F9- Add to archive) and use it later. (see 4.3, 4.4)



    4. Other features
    4.1 Vibrometer mode.
    To select Vibrometer mode click "F5- Vibrometer" button in the main window for two-(one-) plane balancing  
    To start the measuring process click "F9-Run" 


    V1s (V2s) - summary vibration in plane 1(2) (mean-square) V1o (V2o) -  vibration in plane 1(2) (first "revolution" harmonic value) In the right side you can see spectrum window.
    Measuring data files can be saved in archive.

    4.2 Influence coefficients 

    If you save the results of previous balance runs, you can eliminate the test weight run and balance the machine using its saved coefficients.  Select "Secondary" in the "Type of balancing" window and click "F2 Select" button to choose previous machine type from list.



    To save coefficients after balancing click "F8-coefficients" in the balancing result pop-up window (see Tab.1) and then click "F9-Save" button. Input machine type ("Name") and other information in the table.

    4.3 Archives and reports.

    To save  balancing information click " F9- Add to archive " in the balancing result pop-up window (see Tab.1). Input machine type ("Name") and other information in the table. 
    To open previous saved archives  click "F6-Report" in the main window.

    To print report click "F9-Report"


     
    4.4 Charts 

    To view charts of vibration click on "F8-Diagrams"
    Two kind of charts available "Total vibration" and  "Vibration on rotor revolution frequency" (for example, for 3000 rev\min frequency is equal 50Hz)