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The model 330903-00-04-10-02-05 belongs to the industrial machinery monitoring and protection product family of Bently Nevada.
This product line is widely used in power generation, oil and gas processing, petrochemical refining, marine propulsion systems, metallurgy, mining, cement production, and other heavy industrial applications. The main function of this product family is to provide continuous monitoring of rotating machinery condition, enabling early fault detection, improved equipment reliability, and reduced unplanned downtime.
The 330903-00-04-10-02-05 is part of the 3300 XL 8 mm Proximity Probe Series.
This series is a non-contact displacement measurement solution based on eddy current sensing technology. It is commonly used as part of a complete monitoring system that includes:
Key characteristics of the series include:
The 330903-00-04-10-02-05 is a precision non-contact eddy current proximity probe designed for continuous monitoring of shaft vibration, shaft position, radial displacement, and axial movement in rotating machinery.
The probe operates without physical contact with the shaft, ensuring accurate measurement while eliminating mechanical wear. During operation, shaft movement caused by imbalance, misalignment, bearing wear, rotor instability, thermal expansion, or mechanical looseness is converted into a proportional electrical signal.
The device is designed for long-term industrial operation in harsh environments, including exposure to oil mist, dust, humidity, vibration, and high temperatures.
Its compact structure allows installation in confined spaces such as bearing housings and internal machine cavities.
The probe works based on the eddy current principle.
A high-frequency electromagnetic field is generated at the sensing tip.
When a conductive metal surface (shaft) enters this field, eddy currents are induced on the surface.
These eddy currents modify the electrical impedance of the probe system.
The signal conditioning module converts these impedance variations into a proportional analog voltage output representing shaft displacement.
This non-contact method ensures high accuracy, long-term stability, and reliable performance.
| Parameter | Specification |
|---|---|
| Model | 330903-00-04-10-02-05 |
| Product Type | Non-contact Proximity Probe |
| Measurement Principle | Eddy Current Technology |
| Series | 3300 XL 8 mm Proximity Probe Series |
| Probe Diameter | 8 mm |
| Measurement Function | Shaft Vibration, Shaft Position, Radial & Axial Displacement |
| Output Signal | Analog Voltage |
| Linear Measurement Range | Approximately 2–4 mm |
| Sensitivity | ~7.87 V/mm (system dependent) |
| Frequency Response | Suitable for high-speed rotating machinery |
| Housing Material | Stainless Steel |
| Cable Type | Shielded High-Temperature Coaxial Cable |
| Connector Type | Industrial Standard Connector |
| Installation Method | Threaded Mounting |
| Operating Temperature | -35°C to +177°C |
| Environmental Resistance | Oil, Dust, Moisture, Vibration Resistant |
| EMI/RFI Protection | High Immunity |
| Dimensions | Approximately Ø8 mm × 50 mm |
| Weight | Approximately 0.12 kg |
The 330903-00-04-10-02-05 is widely used in industrial rotating machinery monitoring systems.
Typical applications include:
It is especially suitable for continuous condition monitoring of critical rotating equipment.
The 330903-00-04-10-02-05 provides multiple operational advantages:
| Model | Description | Probe Diameter | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-04-10-02-05 | Standard Proximity Probe | 8 mm | Ø8 × 50 mm | 0.11 |
| 330902-00-04-10-02-05 | High Stability Probe | 8 mm | Ø8 × 50 mm | 0.12 |
| 330904-00-04-10-02-05 | Extended Configuration Probe | 8 mm | Ø8 × 55 mm | 0.14 |
| 330905-00-04-10-02-05 | Heavy-Duty Industrial Probe | 8 mm | Ø8 × 65 mm | 0.15 |
| 330906-00-04-10-02-05 | Compact Installation Probe | 8 mm | Ø8 × 45 mm | 0.10 |
| Model | Product Type | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/42M | Vibration Monitoring Module | Shaft Vibration Monitoring | 170 × 110 × 45 | 0.50 |
| 3500/40M | Proximitor Monitor Module | Shaft Displacement Monitoring | 160 × 100 × 40 | 0.45 |
| 3500/22M | Rack Interface Module | System Communication Interface | 150 × 100 × 35 | 0.40 |
| 3500/92 | Communication Gateway Module | Industrial Network Communication | 180 × 120 × 50 | 0.60 |
| 3500/15 | Power Supply Module | System Power Distribution | 200 × 130 × 60 | 0.75 |
The 330903-00-04-10-02-05 is a high-precision non-contact eddy current proximity probe designed for continuous monitoring of shaft vibration, displacement, and position in rotating machinery.
As part of the 3300 XL 8 mm Proximity Probe Series, it delivers stable performance, high accuracy, strong environmental resistance, and long operational life. It is widely applied in turbines, compressors, pumps, motors, generators, and other critical rotating equipment operating under demanding industrial conditions.
Its compact structure, durable stainless steel housing, and reliable signal output make it suitable for predictive maintenance, machinery protection, and continuous condition monitoring applications.