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- 330903-00-04-10-11-05
- 3300 XL NSv Proximity Probe
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Industrial Proximity Probe System – Model 330903-00-04-10-11-05
Brand
The model 330903-00-04-10-11-05 belongs to the industrial machinery monitoring and protection product family of Bently Nevada.
This product line is widely applied in power generation, oil and gas processing, petrochemical refining, marine engineering, metallurgy, mining, cement production, and other heavy industrial environments. The main purpose of this product family is to provide continuous monitoring of rotating machinery condition, improve operational reliability, and support predictive maintenance strategies for critical assets.
Product Series
The 330903-00-04-10-11-05 is part of the 3300 XL 8 mm Proximity Probe Series.
This series is a non-contact displacement measurement system based on eddy current sensing technology. A complete setup typically includes:
- Proximity probe
- Extension cable
- Signal conditioning module
Key characteristics include:
- High precision measurement
- Long-term signal stability
- Strong resistance to vibration and industrial interference
- High temperature tolerance
- Excellent linear response
- Fast dynamic measurement capability
- Compact installation structure
- Continuous monitoring capability
- High reliability for critical machinery
Product Introduction
The 330903-00-04-10-11-05 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, allowing accurate measurement while eliminating mechanical wear. It continuously detects shaft movement caused by imbalance, misalignment, bearing wear, thermal expansion, rotor instability, or mechanical looseness, converting these variations into electrical signals for analysis.
Its rugged design ensures stable operation in harsh industrial environments such as high temperature zones, oil mist environments, dusty areas, and high vibration conditions.
The compact structure allows installation in confined machine spaces including bearing housings and internal rotor assemblies.
Working Principle
The probe operates based on the eddy current principle.
A high-frequency electromagnetic field is generated at the probe tip.
When a conductive shaft enters the field, eddy currents are induced on the surface.
These eddy currents alter 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 ensures stable, accurate, and long-term measurement performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 330903-00-04-10-11-05 |
| 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 |
Product Applications
The 330903-00-04-10-11-05 is widely used in industrial rotating machinery monitoring systems.
Typical applications include:
- Steam turbine generator systems
- Gas turbine units
- Hydroelectric turbines
- 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 equipment systems
- Cement production machinery
- Petrochemical processing plants
- Chemical production systems
- 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 in harsh industrial environments.
Product Advantages
The 330903-00-04-10-11-05 provides multiple operational benefits:
- Non-contact measurement eliminates mechanical wear
- High precision displacement measurement
- Stable long-term signal performance
- Fast dynamic response to shaft movement
- High sensitivity to micro-vibration
- Durable stainless steel construction
- Strong resistance to harsh environments
- Excellent electromagnetic interference immunity
- Continuous 24/7 operation capability
- Compact design for restricted installation spaces
- Low maintenance requirements
- Long service life
- Supports predictive maintenance systems
- Improves machinery reliability
- Reduces unexpected downtime
- Enhances operational safety and efficiency
Recommended Models from the Same Series
| Model | Description | Probe Diameter | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-04-10-11-05 | Standard Proximity Probe | 8 mm | Ø8 × 50 mm | 0.11 |
| 330902-00-04-10-11-05 | High Stability Probe | 8 mm | Ø8 × 50 mm | 0.12 |
| 330904-00-04-10-11-05 | Extended Configuration Probe | 8 mm | Ø8 × 55 mm | 0.14 |
| 330905-00-04-10-11-05 | Heavy-Duty Industrial Probe | 8 mm | Ø8 × 65 mm | 0.15 |
| 330906-00-04-10-11-05 | 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 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 |
Summary
The 330903-00-04-10-11-05 is a high-performance 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 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 and reliable output make it suitable for predictive maintenance, machinery protection, and continuous condition monitoring applications.