Compressor vibration elimination

[JeremyRhish]

Using the Balanset-1A Instrument

Equipment Preparation

• accelerometers, laser rpm sensor, mounting stand, software application, and additional tools.
• Establish a USB connection between the instrument and the computer, ensuring the software is set up properly.

Mounting the Sensors

• Fix the accelerometers securely to the machine's structure in locations where vibrations are most prominent, ideally 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.

Software Startup

• Open the Balanset application on your PC.
• Select the appropriate balancing mode: single-plane or two-plane, depending on the rotor type and your specific requirements.

Measuring Initial Vibration

• 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.

Trial Weight Installation

• Bring the rotor to a standstill and affix a trial weight at a predetermined point on the rotor, specifying its mass in the software (typically in grams).
• Restart the rotor, and the software will record the changes in vibration level and phase angle.

Computing the Compensating Weight

• 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.

Installing the Correction Weight

• Mount the calculated corrective weight onto the rotor at the specified location and angle.
• Periodic checks can be performed to ensure the balancing procedure is effectively reducing the vibration.

Verification and Balancing Completion

• After installing the correction weight, run the rotor again and check the residual vibration level.
• If the vibration level is within acceptable limits (according to ISO 1940), the balancing is complete.
• If the vibration is still outside acceptable limits, reiterate the process and fine-tune the compensating weight.

Report Generation

• The balancing results are saved in the software's archive. You can create and print a report containing vibration data, correction weight mass, and its installation angle.

Final Recommendations

• Double-check that all weights and sensors are securely fastened.
• Check that the rotor's rotation is smooth and free from undue noise or vibration.
• If the rotor operates within a larger assembly, check the functionality and interplay of all interconnected parts.

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