OU "Vibromera"
Balancing set "BalCom-1"
User manual
rev 1.0
Jun 2012
1. Introduction
BalCom-1 is portable balancer used to balance rigid rotors in their own bearings (in-situ) or as embedded measuring system in the portable balancing machines. It provide on-situ (field) 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.
BalCom-1 is simple to use for non-vibration experts.
BalCom-1 includes:
1 - Interface unit
2 - two vibration sensors
3 - 1 optical sensor (laser tachometer)
4- scale
5 - Software ( notebook not included - supplied by additional order)
Specifications:
2x 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
Rotation speed measuring 30-90000 rpm
Phase angle measurement error +-1 degree
Power - 140- 220VAC 50Hz
Weigh - 1.4 KG
2. Prepare to work. Software and hardware setup for two-plane balancing.
Install drivers and BalCom-1 software from installation CD.
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 below
Connect cables
- vibration sensors to connectors X1 and X2
- phase laser sensor to connector X3
fig.1 Main window for two-plane balancing
Install reflector mark on the rotor and check led light on the phase sensor when rotor rotate.
fig.1.1 phase sensor settings
3. Balancing procedure
After sensors install click on "F7 - Balancing" button and set balancing parameters. Then click "F9-Next"
Make step-by-step operations as shown in the Table 1.
Table 1
Run 0 - Start-up without test weight.
2. Run the machine at its operating speed (but lower than resonance frequency) 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.
| Two plane balancing window
Correction weight mount
|
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 F9-Run 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 F9-Run 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 popup form. |
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.
4.3 INFLUENCE COEFFICIENT BALANCING
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.
4.4 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"
4.6 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 revmin frequency is equal 50Hz)
To zoom chart - select chart region by mouse from top left to right bottom direction, to redo changes - select region from top right to left bottom direction
