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- Bently Nevada
- 330901-00-20-05-02-00
- 3300 XL NSv Proximity Probe
- USA
- 8 mm diameter × ~85–130 mm length
- 0.48kg
- Xiamen, China
- New & In Stock
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Industrial Technical Specification Report
Model: 330901-00-20-05-02-00 Proximity Probe
1. Product Overview
The model 330901-00-20-05-02-00 is a high-precision eddy current proximity probe designed for continuous non-contact measurement of shaft vibration, radial displacement, and rotor dynamic behavior in rotating machinery systems.
It is used in critical industrial equipment such as turbines, compressors, pumps, and generator sets where real-time condition monitoring is required to ensure operational safety and long-term reliability.
The probe converts variations in the gap between its sensing tip and a conductive metallic surface into an electrical signal, enabling precise vibration and displacement monitoring.
This product belongs to the 3300 XL proximity measurement platform within the industrial machinery protection ecosystem of Bently Nevada.
2. Product Series Description
The model is part of the 3300 XL 8 mm Proximity Probe Series, which is widely recognized as an industry standard for rotating machinery monitoring systems.
Key characteristics include:
- 8 mm standardized probe geometry
- Eddy current non-contact sensing technology
- Modular architecture (probe + extension cable + driver unit)
- High stability under harsh industrial environments
- Long-term calibration consistency
- Strong electromagnetic interference resistance
- Designed for continuous 24/7 industrial operation
This series is widely deployed in power generation, oil & gas, petrochemical, and heavy industrial applications.
3. Technical Parameters
Product Specification Table
| Parameter | Specification |
|---|---|
| Model | 330901-00-20-05-02-00 |
| Measurement Principle | Eddy current displacement sensing |
| Application Type | Shaft vibration and radial displacement monitoring |
| Probe Diameter | 8 mm |
| System Compatibility | 3300 XL proximity monitoring system |
| Linear Measurement Range | Approx. 2 mm – 4 mm |
| Target Material | Conductive metallic rotating shafts |
| Output Signal | Analog voltage proportional to gap distance |
| Cable Configuration | Integrated probe cable |
| Cable Length Code | 20 configuration standard |
| Electrical Interface | Industrial connector system |
| Operating Temperature | -52°C to +177°C |
| Storage Temperature | -55°C to +200°C |
| Mounting Type | Threaded installation |
| Housing Material | Stainless steel + insulation coating |
| Calibration | Factory calibrated linear response |
| Frequency Response | Suitable for high-speed rotating machinery |
| EMI Resistance | High immunity to electromagnetic interference |
| Dimensions | 8 mm diameter × ~85–130 mm length |
| Total Assembly Length | Depends on installation configuration |
| Weight | ~0.26 – 0.48 kg |
4. Working Principle
The probe generates a high-frequency electromagnetic field at its sensing tip.
When positioned near a conductive rotating shaft, eddy currents are induced on the shaft surface.
The interaction strength varies according to the distance between probe and shaft.
This variation is converted into an electrical signal proportional to displacement, which is then used by monitoring systems for vibration analysis, imbalance detection, and rotor condition evaluation.
5. Application Fields
The model is widely used in rotating machinery condition monitoring systems across heavy industries.
It is applied for measuring shaft vibration, rotor eccentricity, axial position, and dynamic clearance in real time.
Typical application industries include:
- Gas turbine and steam turbine power plants
- Hydroelectric generation systems
- Oil and gas compressor stations
- Petrochemical refining facilities
- Industrial pumping systems
- Marine propulsion systems
- Heavy manufacturing rotating machinery
It is especially important in predictive maintenance programs where early fault detection reduces downtime and equipment failure risk.
6. Product Advantages
This model provides several key engineering advantages:
It enables non-contact measurement, eliminating mechanical wear and extending service life.
It maintains stable performance under harsh environmental conditions such as high temperature, vibration, and contamination.
It delivers high linear accuracy across its measurement range, ensuring reliable diagnostic output.
It provides strong resistance to electromagnetic interference, improving signal stability in industrial environments.
It supports modular system integration, allowing flexible installation and replacement.
It is designed for continuous operation in mission-critical industrial systems with minimal maintenance requirements.
7. Related Models (Same Series / Closely Related Variants)
Technical Comparison Table
| Model | Description | Key Characteristics | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-10-05-02-00 | Standard configuration probe | Balanced performance, general industrial use | 8 mm × ~60 mm | ~0.19 |
| 330901-00-12-05-02-00 | Medium reach probe | Stable signal and moderate cable length | 8 mm × ~65 mm | ~0.21 |
| 330901-00-15-05-02-00 | Extended reach probe | Longer cable for remote installation | 8 mm × ~75 mm | ~0.28 |
| 330901-00-20-05-02-00 | Extra-long configuration probe | Maximum reach for large machinery setups | 8 mm × ~90 mm | ~0.33 |
| 330905-00-20-05-02-00 | High-temperature variant | Enhanced thermal resistance design | 8 mm × ~85 mm | ~0.27 |
8. Popular Models from Same Ecosystem
Widely Used Industrial Products Table
| Model | Product Type | Function | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 3300 XL 8mm Proximity System | Probe system | Shaft vibration monitoring platform | 8 mm probe | ~0.20 |
| 330780-90-00 Proximitor Sensor | Signal conditioning module | Converts probe signal into monitoring output | Compact module | ~0.45 |
| 3500/42M Vibration Monitor Module | Monitoring module | Multi-channel vibration analysis system | Rack unit | ~1.6 |
| 190501 Accelerometer Sensor | Vibration sensor | Structural vibration measurement device | Small sensor body | ~0.12 |
| TK-3E Calibration Kit | Calibration system | Field testing and verification equipment | Portable kit | ~2.4 |
9. Summary
The 330901-00-20-05-02-00 proximity probe is a high-precision industrial sensing device designed for continuous monitoring of rotating machinery.
It provides stable and accurate measurement of shaft vibration and displacement, supporting predictive maintenance strategies in critical industrial environments.
Its extended configuration capability, strong environmental resistance, and reliable signal output make it suitable for long-term deployment in demanding industrial systems.
The model is widely used in power generation, petrochemical, and heavy industrial sectors where equipment reliability and early fault detection are essential.