Description
Bently 330130-040-00-00
Technical Specifications
- Model: 330130-040-00-00
- Sensor Type: Eddy Current Proximity Probe
- Thread Size: Standard metric or imperial thread (depending on specific variant)
- Cable Length: Integrated or specified length
Functional Features
- Non-Contact Measurement: Provides highly accurate, wear-free measurement of shaft dynamics.
- High Frequency Response: Capable of capturing high-frequency vibration data for detailed rotor dynamics analysis.
- Linear Range: Offers a wide linear measurement range for precise gap and displacement monitoring.
Application Scenarios
Installed on steam turbines, compressors, pumps, and motors to monitor shaft relative vibration, axial position, and eccentricity.
Performance Parameters
- Sensitivity: Typically 7.87 mV/μm (200 mV/mil)
- Operating Temperature: -52°C to +177°C
- Frequency Response: DC to 10 kHz
Material Composition
Probe tip encapsulated in high-temperature PPS engineering plastic via secondary injection molding. Coil sealed for enhanced strength and sealing.
Structural Characteristics
Cylindrical probe body with precision-machined sensing face, integrated high-frequency cable, and protective jacket.
Working Principle
Based on the eddy current effect. When energized, the proximitors generate a high-frequency magnetic field. As a metallic conductor (shaft) approaches the probe tip, eddy currents are induced, changing the coil’s impedance. This change is proportional to the distance between the probe and the shaft.
Installation Requirements
Must be mounted in a tapped hole on the bearing housing. Maintain proper installation gap (typically -9V to -11V DC gap voltage). Use appropriate thread sealant if required.
Precautions for Use
Avoid damaging the probe tip during installation. Ensure the extension cable is properly connected and secured. Do not exceed the specified bending radius for the cable.
