Vibromera OU

Portable field balancer "Balanset-1A" 1. Introduction Balanset-1A is portable dynamic balancer used to balance rigid rotors in their own bearings (in-situ) or as measuring system in the balancing machines. It provide single- and two-plane dynamic balancing services for fans, grinding wheels, spindles, crushers, pumps and other rotating machinery. Balancing software provides the correct balancing solution for single-plane and two-plane balancing automatically. Balanset-1A is simple to use for non-vibration experts. Balancing procedure uses 3-run method with adding the test mass in every place of balancing (Influence Coefficient Method). Software calculate balancing weghts and place (angle) automatically, show it in the result table and save in archive file. Also you can print balancing report. Waveform and spectrum of vibration charts are possible. Balanset-1A includes: USB interface unit Two vibration sensors Optical sensor (laser tachometer)+ magnetic stand Scales Software ( notebook not included - supplied by additional order) Plastic case for transportation Specifications: 2x vibration sensors (vibro accelerometers, cable length 4m, 10m optionally). 1 x optical sensor (laser tachometer, distance: 50 to 500mm, cable length 4m, 10m optionally) 1 x USB interface module with software for PC connection Details: Amplitude vibration range 0.05-100 mm/sec Vibration frequency range 5 - 300 Hz Accuracy - 5% of full scale Correction planes 1 or 2 Rotation speed measuring 150-80000 rpm Phase angle measurement accuracy +-1 degree Power supply- PC USB port Weigh - 4 KG Software v.1.56 main features: Dual-channel simultaneous vibration data acquisition Measuring RPM, amplitude and phase of vibration velocity of 1x vibration Dynamic balancing using trial weights method Balancing using saved influence coefficients Trim balancing 180° indexing/balancing method for mandrel eccentricity eliminations Split weight calculation, drill calculation 3 counterweights method grinding wheel balancing User selectable trial mass Trial mass validity automatically popup message Remove or leave trial weights Balancing tolerance calculation (ISO 1940 G-classes) Changing correction planes calculations Polar graph Manual data input Waveform and FFT spectrum charts Imperial\Metric units RunDown charts (experimental option) 2. Prepare to work. Software and hardware setup for two-plane balancing. 2.1 Driver installation Install drivers and Balanset-1A 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. fig.2 Phase sensor settings 3. Balancing procedure fig.3 Main window for two-plane balancing After sensors install click on "F7 - Balancing" button and set balancing parameters. Then click "F9-Next" fig.4 Balancing settings Then make step-by-step operations as shown in the Table 1 below. Table 1. Step-by-step operations 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 F7-Run#0 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 Two plane balancing window. Original vibration Run#1 - Test weight in plane 1 4. Stop the machine and mount a test weight of suitable size arbitrarily in plane 1. 5. Start up the machine, click on F7-Run#1 and measure the new vibration level and phase angle. Duration of the measuring process may amounts 2-10 sec. 6. Stop the machine and remove the test weight Run#2 - Test weight in plane 2 7. Mount a trial weight of suitable size in plane 2 . 8. Start the machine again, click on F7-Run#2 and 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 polar diagram. fig.5 Two plane balancing. Correction weights free position, polar diagram fig.5-1 Two plane balancing. Correction weights fixed position, polar diagram fig.5-2 Two plane balancing. Corrective weights – 3 counterweights method grinding wheel balancing, polar diagram 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. Changing correction planes fig.6-1 Two plane balancing. Changing correction planes Balance tolerance calculator fig.6-2. Balance tolerance calculator (ISO 1940) Balancing procedure - video. Field balancing 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) - 1x vibration in plane 1(2) 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, you can balance the machine using saved balancing coefficients. Select "Saved coefficients" in the "Balancing settings" window (fig.4) 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" Two planes balancing archive. 4.4 Charts To view charts of vibration click on "F8-Diagrams" Three kinds of charts are available "Common vibration","Vibration on rotor revolution frequency 1x vibration" and "Spectrum" (for example, for 3000 rev\min frequency is equal 50Hz) Common vibration chart 1x vibration chart. Vibration spectrum charts.