Rotor balancing

Using the Balanset-1A Instrument

Getting the Equipment Ready

• Ensure the instrument is complete with all necessary components: vibration transducers, laser tachometer, magnetic stand, software, and other accessories.
• Connect the device to your PC using the USB interface and confirm the software installation.

Setting Up the Sensors

• Mount the vibration transducers securely on the machine's housing where vibrations are most pronounced, typically near the bearings.
• Aim the optical rpm sensor at the rotating shaft and apply a reflective strip to the shaft for phase angle data acquisition.

Launching the Software

• Launch the Balanset software on your computer.
• Configure the software for either single-plane or two-plane balancing, based on the rotor's characteristics and the desired outcome.

Initial Vibration Measurement

• Run the rotor up to its operating speed.
• The program will record the vibration amplitude, rpm, and phase, providing a baseline measurement of the existing imbalance.

Mounting the Test Weight

• Halt the rotation and mount a test weight at a designated position on the rotor, with the weight's value entered into the software (usually in grams).
• Run the rotor again, allowing the software to measure the effects of the trial weight on vibration and phase.

Determining the Corrective Mass

• The software uses the measured values to automatically compute the necessary compensating weight's magnitude and placement angle.
• The results of the calculation are shown both numerically and visually through charts and graphs.

Mounting the Compensating Weight

• Install the correction weight on the rotor according to the software's calculations.
• If necessary, perform intermediate checks to verify that the imbalance is being reduced.

Final Check and Balance Confirmation

• After installing the correction weight, run the rotor again and check the residual vibration level.
• The balancing procedure is finished if the remaining vibration is within the permissible limits specified in ISO 1940.
• Should the vibration still be excessive, repeat the balancing steps, making further adjustments to the corrective weight as needed.

Generating a Documentation of the Balancing Results

• All balancing results are logged and archived within the software, from which you can produce a printable report summarizing the vibration levels, compensating weight, and its installation position.

Post-Balancing Checklist

• Verify the secure attachment of all balancing weights and measurement sensors.
• Ensure the rotor rotates smoothly and without excessive noise.
• If the rotor operates within a larger assembly, check the functionality and interplay of all interconnected parts.

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