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3300 XL 11 mm Proximity Probe
Model: 330801-28-05-101-03-02
Brand Information
Brand: Bently Nevada
Series: 3300 XL 11 mm Proximity Transducer System
Product Category: Eddy Current Non-Contact Proximity Probe
Application Area: Rotating Machinery Vibration, Position and Displacement Monitoring
The 330801-28-05-101-03-02 is a long-body industrial proximity probe designed for precise, continuous monitoring of shaft vibration and displacement in critical rotating machinery. It is part of the 3300 XL 11 mm platform, widely used in heavy industries where machinery protection and predictive maintenance are essential.
This probe is optimized for applications requiring extended reach and stable signal performance under harsh operating conditions such as vibration, temperature variation, oil contamination, and electromagnetic interference.
Product Introduction
The 330801-28-05-101-03-02 operates using eddy current sensing technology. The probe generates a high-frequency electromagnetic field at its tip, which interacts with a conductive target surface such as a rotating shaft. As the distance between the probe and the shaft changes, the electromagnetic field is altered, producing a proportional electrical signal.
This non-contact measurement method ensures no mechanical wear occurs between the sensor and the monitored surface, enabling long-term stable operation even in demanding industrial environments.
The 101 mm probe length configuration provides extended installation capability, making it suitable for machinery with deeper housings or complex structural layouts. This allows installation in turbines, compressors, and large rotating equipment where standard probe lengths cannot reach the measurement point effectively.
The probe continuously provides real-time vibration and displacement data, which is used by machinery protection systems for condition monitoring and fault detection.
Product Features
- Eddy current non-contact sensing technology
- Extended 101 mm probe body design
- High precision vibration and displacement measurement
- Excellent long-term signal stability
- Stainless steel industrial-grade housing
- Strong resistance to oil, dust, and moisture
- High electromagnetic interference immunity
- Fast dynamic response performance
- Suitable for deep installation environments
- Continuous real-time monitoring capability
- High vibration and shock resistance
- Designed for harsh industrial conditions
- Compatible with protection and monitoring systems
- Supports predictive maintenance programs
- Long operational life design
Technical Specifications
General Specifications
| Parameter | Specification |
|---|---|
| Model | 330801-28-05-101-03-02 |
| Product Type | Proximity Probe |
| Series | 3300 XL 11 mm Series |
| Measurement Technology | Eddy Current |
| Probe Diameter | 11 mm |
| Probe Length Code | 101 mm |
| Housing Material | Stainless Steel |
| Probe Tip Material | High-performance polymer |
| Installation Method | Threaded mounting |
| Connector Type | Coaxial connector |
| Output Signal | Analog dynamic signal |
| Function | Shaft vibration & displacement monitoring |
| Operating Temperature | -52°C to +177°C |
| Storage Temperature | -55°C to +200°C |
| Environmental Protection | Oil, dust, moisture resistant |
| Vibration Resistance | Industrial grade |
| Shock Resistance | Industrial grade |
| EMI Protection | High immunity |
| Approx. Dimensions | 11 × 11 × 138 mm |
| Approx. Weight | 0.36 kg |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Probe Diameter | 11 mm |
| Probe Length | 101 mm |
| Total Length | ~138 mm |
| Housing Type | Stainless steel |
| Structure | Extended reach design |
| Mounting | Threaded |
| Connector | Coaxial |
| Weight | ~0.36 kg |
Electrical Specifications
| Parameter | Value |
|---|---|
| Sensing Principle | Eddy current |
| Output Signal | Analog voltage signal |
| Sensitivity | High precision |
| Linearity | High |
| Repeatability | Excellent |
| Dynamic Response | Fast |
| Noise Immunity | High |
| Continuous Operation | Supported |
Product Applications
The 330801-28-05-101-03-02 is widely used in heavy rotating machinery requiring deep installation monitoring capability.
Power Generation
- Steam turbines
- Gas turbines
- Hydro turbines
- Generator sets
- Auxiliary turbine systems
Oil & Gas
- Pipeline compressors
- LNG processing units
- Offshore platforms
- Gas compression stations
- Turbo machinery systems
Petrochemical Industry
- Process compressors
- Refinery pump systems
- Industrial blowers
- Reactor circulation systems
Heavy Industry
- Large motors
- Gearboxes
- Rolling mills
- High-load rotating equipment
Mining & Metallurgy
- Crushing systems
- Conveyor drives
- Industrial fans
- Ore processing machinery
Product Advantages
Extended Installation Capability
The 101 mm probe length allows installation in deep mechanical housings where standard probes cannot reach the shaft target surface.
High Measurement Precision
Provides accurate vibration and displacement data for early fault detection and machinery protection.
Non-Contact Operation
Eliminates mechanical wear, ensuring stable long-term measurement performance.
Strong Environmental Resistance
Designed to withstand oil mist, dust, vibration, moisture, and temperature variation.
Fast Dynamic Response
Accurately tracks high-speed shaft movement and transient mechanical behavior.
Long Service Life
Industrial-grade construction ensures durability and reliability over extended operation periods.
Improved Machinery Protection
Supports predictive maintenance and reduces unexpected downtime.
Stable Signal Output
Maintains measurement consistency even under harsh industrial conditions.
Product Series Overview
The 330801-28-05-101-03-02 belongs to the 3300 XL 11 mm Proximity Transducer System, a widely used industrial monitoring platform for rotating machinery protection.
The system includes:
- 11 mm proximity probes (various lengths)
- Extension cables
- Proximitor signal conditioners
- Monitoring modules
- Machinery protection systems
- Vibration diagnostic tools
This ecosystem provides complete condition monitoring for critical rotating assets.
Recommended Models from Same Series
| Model | Description | Dimensions (Approx.) | Weight (kg) | Diameter |
|---|---|---|---|---|
| 330801-28-00-050-03-02 | Short probe | 11 × 11 × 88 mm | 0.24 | 11 mm |
| 330801-28-04-050-00-02 | Standard probe | 11 × 11 × 88 mm | 0.24 | 11 mm |
| 330801-28-04-090-03-02 | Medium probe | 11 × 11 × 128 mm | 0.33 | 11 mm |
| 330801-28-05-101-03-02 | Long probe | 11 × 11 × 138 mm | 0.36 | 11 mm |
| 330801-28-04-150-06-02 | Extra-long probe | 11 × 11 × 188 mm | 0.45 | 11 mm |
Recommended Popular Models from Same Brand
| Model | Type | Function | Dimensions (Approx.) | Weight (kg) |
|---|---|---|---|---|
| 330780-50-00 | Proximity probe | Vibration monitoring | 80 × 8 × 8 mm | 0.18 |
| 330851-02-000-050-90-00-05 | Extension cable | Signal transmission | 500 mm length | 0.15 |
| 330130-085-00-00 | Proximitor sensor | Signal conditioning | 120 × 80 × 40 mm | 0.45 |
| 3500/42M | Monitoring module | Vibration protection | 241 × 24 × 240 mm | 0.95 |
| 3500/22M | Communication module | System integration | 241 × 24 × 240 mm | 0.88 |
Typical Monitoring Functions
When used in a full machinery protection system, the 330801-28-05-101-03-02 supports:
- Radial shaft vibration monitoring
- Axial displacement measurement
- Rotor eccentricity detection
- Shaft position tracking
- Bearing condition monitoring
- Differential expansion measurement
- Rotor dynamic analysis
- Machinery protection alarms
- Predictive maintenance diagnostics
- Equipment performance optimization
Summary
The 330801-28-05-101-03-02 is a long-body 11 mm proximity probe designed for deep installation environments and high-precision shaft monitoring applications. With eddy current sensing technology, robust mechanical design, and excellent environmental resistance, it provides reliable non-contact measurement of vibration and displacement in critical rotating machinery.
It is widely applied in turbines, compressors, pumps, motors, and heavy industrial systems where operational stability, safety, and predictive maintenance capability are required.