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- 330903-00-04-10-02-00
- 3300 XL NSv Proximity Probe
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Industrial Proximity Probe System – Model 330903-00-04-10-02-00
Brand
The model 330903-00-04-10-02-00 belongs to the industrial machinery monitoring and protection product line of Bently Nevada.
This product family is widely applied in heavy industrial sectors such as power generation, oil and gas processing, petrochemical refining, marine propulsion, metallurgy, mining, cement production, and large-scale rotating machinery manufacturing. The main purpose of this product line is to provide continuous monitoring of machine health, improve operational safety, and support predictive maintenance strategies for critical rotating equipment.
Product Series
The 330903-00-04-10-02-00 is part of the 3300 XL 8 mm Proximity Probe Series.
This series is designed for high-precision, non-contact measurement of shaft displacement using eddy current sensing technology. A complete monitoring system generally includes:
- Proximity probe
- Extension cable
- Signal conditioning module
Key characteristics of the series include:
- High measurement precision and repeatability
- Stable long-term performance
- Strong resistance to industrial vibration
- High immunity to electromagnetic interference
- Excellent temperature tolerance
- Compact installation design
- Continuous real-time monitoring capability
- High reliability for critical machinery
Product Introduction
The 330903-00-04-10-02-00 is a precision non-contact eddy current proximity probe used for continuous measurement 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 machine operation, any shaft movement caused by imbalance, misalignment, bearing degradation, rotor instability, thermal expansion, or mechanical looseness is converted into an electrical signal for monitoring and analysis.
The probe is built with a stainless steel housing and industrial-grade shielding cable, enabling stable operation in harsh environments such as high temperature, oil mist, dust, humidity, and strong vibration conditions.
Its compact structure allows installation in confined mechanical areas such as bearing housings and internal machine assemblies.
Working Principle
The probe operates using eddy current sensing technology.
A high-frequency electromagnetic field is generated at the probe tip.
When a conductive metal shaft enters the field, eddy currents are induced on the surface of the shaft.
These eddy currents modify the impedance of the probe system.
The signal conditioning unit converts these impedance variations into a proportional analog voltage output representing shaft displacement.
This non-contact method provides high accuracy, stability, and long operational life.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330903-00-04-10-02-00 |
| 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 |
Product Applications
The 330903-00-04-10-02-00 is widely used in industrial rotating machinery condition monitoring systems.
Typical applications include:
- Steam turbine systems
- Gas turbine generator sets
- Hydroelectric power plants
- Centrifugal compressors
- Axial compressors
- Industrial gas compressors
- High-speed electric motors
- Industrial pump systems
- Boiler feed pumps
- Cooling water pumps
- Marine propulsion systems
- Metallurgical rolling mills
- Mining machinery
- Cement production equipment
- Petrochemical processing plants
- Chemical processing facilities
- Natural gas compressor stations
- Industrial blower systems
- Large ventilation fans
- Heavy rotating machinery systems
It is especially suitable for continuous monitoring of critical rotating equipment requiring high reliability.
Product Advantages
The 330903-00-04-10-02-00 offers multiple operational advantages:
- Non-contact measurement eliminates mechanical wear
- High precision displacement sensing
- Stable long-term performance
- Fast dynamic response to shaft movement
- High sensitivity to micro-vibration
- Durable stainless steel construction
- Strong resistance to oil, dust, moisture, and vibration
- Excellent electromagnetic interference protection
- Continuous 24/7 operational reliability
- Compact structure for tight installation spaces
- Low maintenance requirements
- Long service life
- Supports predictive maintenance strategies
- Improves machinery reliability
- Reduces unexpected downtime
- Enhances operational safety and efficiency
Recommended Models from the Same Series
| Model | Description | Probe Diameter | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-04-10-02-00 | Standard Proximity Probe | 8 mm | Ø8 × 50 mm | 0.11 |
| 330902-00-04-10-02-00 | High Stability Probe | 8 mm | Ø8 × 50 mm | 0.12 |
| 330904-00-04-10-02-00 | Extended Configuration Probe | 8 mm | Ø8 × 55 mm | 0.14 |
| 330905-00-04-10-02-00 | Heavy-Duty Industrial Probe | 8 mm | Ø8 × 65 mm | 0.15 |
| 330906-00-04-10-02-00 | Compact Installation Probe | 8 mm | Ø8 × 45 mm | 0.10 |
Recommended Popular Models from the Same Brand
| Model | Product Type | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/42M | Vibration Monitor 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 |
Summary
The 330903-00-04-10-02-00 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 provides stable measurement performance, high accuracy, strong environmental resistance, and long service life. It is widely used 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.