Step-by-Step Guide: Balancing with the Balanset-1A

Published on | Category: Guides & Practice

This guide will walk you through the complete process of two-plane balancing a rotor using the Balanset-1A. Follow these steps carefully to achieve precise and repeatable results.

Step 1: Equipment Preparation

Ensure all components of the Balanset-1A kit are present:

  • USB measurement unit
  • Two vibration sensors (accelerometers)
  • Laser tachometer (phase sensor)
  • Magnetic stand
  • Electronic scale
  • Reflective tape
  • Software on USB stick and USB cable

A laptop with Windows is required for the work.

Step 2: Sensor Mounting

  1. Install the first vibration sensor in the first balancing plane and the second sensor in the second plane, both perpendicular to the rotor axis.
  2. Mount the laser tachometer on the magnetic stand.
  3. Stick a piece of reflective tape on the end face or a pulley of the rotor.
  4. Aim the laser of the tachometer at the reflective tape.

Step 3: Device Connection

  1. Connect the accelerometers to the X1 and X2 ports of the device.
  2. Connect the tachometer to the X3 port.
  3. Connect the USB measurement unit to the laptop with the cable.

Step 4: Software Setup

  1. Install the USB drivers and the Balanset-1A software from the USB stick.
  2. Start the Balanset-1A program.
  3. In the main window, select the balancing mode: F2 for one plane or F3 for two planes (recommended for most industrial rotors).

Step 5: Balancing Settings

  1. Enter the name and location of the rotor in the software.
  2. Weigh a trial mass with the electronic scale and enter its mass and the attachment radius into the software.
  3. Configure the balancing settings: method (new rotor or with saved coefficients), method for attaching the correction mass (any or fixed positions), and whether to remove the trial mass.

Step 6: Performing Measurements

Run #0: Initial Measurement
Start the rotor at operating speed. Measure the initial vibration and phase in both planes and save the results with F7.
Run #1: Trial Mass in Plane 1
Stop the rotor. Attach the trial mass in the first plane. Start the rotor again, measure, and save. Ensure that the amplitude or phase has changed by at least 20%.
Run #2: Trial Mass in Plane 2
Stop the rotor. Move the trial mass to the second plane. Start, measure, and save the results.

Step 7: Attaching Correction Masses

After the three runs, the software automatically calculates the mass and angle of the required correction weights for both planes.

  1. Remove the trial mass.
  2. Weigh the correction weights and attach them according to the software's calculations (the angle is measured in the direction of rotation from the position of the trial mass).
  3. Secure the weights firmly (mechanically or by welding).

Step 8: Verifying the Result

Start the rotor for a control run (RunC). If the residual vibration exceeds the tolerance, add an additional correction mass according to the software's instructions and repeat the check.

Step 9: Completing the Work

Stop the rotor, remove the sensors and the tape. Save the report and the data archive in the software.

Additional Recommendations

  • Ensure the bearings are in good condition.
  • Weigh all masses accurately.
  • Use only the supplied accessories.