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- Bently Nevada
- 330901-00-12-70-02-RU
- 3300 XL NSv Proximity Probe
- USA
- 8 mm diameter × ~65–95 mm length
- 0.36kg
- Xiamen, China
- New & In Stock
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Industrial Technical Specification Report
Model: 330901-00-12-70-02-RU Proximity Probe
1. Product Overview
The model 330901-00-12-70-02-RU is a precision proximity probe designed for continuous non-contact measurement of shaft vibration, radial displacement, and rotor dynamic behavior in rotating machinery.
It operates using eddy current sensing technology, enabling accurate measurement of the gap between the probe tip and conductive metallic surfaces without physical contact.
This probe is typically installed in turbines, compressors, pumps, and other critical rotating machinery where real-time condition monitoring is essential for safe operation and predictive maintenance.
The 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, a widely adopted industrial standard for rotating machinery monitoring.
Key characteristics of the series include:
- 8 mm standardized probe geometry
- Eddy current non-contact measurement technology
- Modular architecture (probe + cable + driver unit)
- High stability in harsh industrial environments
- Long-term calibration consistency
- Strong electromagnetic interference resistance
- Designed for continuous 24/7 industrial monitoring
This series is widely used in power generation, petrochemical, oil & gas, and heavy industrial applications.
3. Technical Parameters
Product Specification Table
| Parameter | Specification |
|---|---|
| Model | 330901-00-12-70-02-RU |
| 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 | 12 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 industrial electromagnetic interference |
| Dimensions | 8 mm diameter × ~65–95 mm length |
| Total Assembly Length | Depends on installation configuration |
| Weight | ~0.20 – 0.36 kg |
4. Working Principle
The probe operates by generating a high-frequency electromagnetic field at the sensing tip.
When placed near a conductive rotating shaft, eddy currents are induced on the shaft surface.
The strength of this interaction changes 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 and machinery 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.
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 particularly important in predictive maintenance systems where early fault detection is required to avoid equipment failure and downtime.
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 industrial environments such as high temperature, vibration, and contamination.
It delivers high linear accuracy across its measurement range, ensuring reliable diagnostic results.
It offers strong resistance to electromagnetic interference, improving signal stability in industrial conditions.
It supports modular system integration, allowing flexible installation and replacement.
It is designed for continuous operation in mission-critical environments with minimal maintenance requirements.
7. Related Models (Same Series / Closely Related Variants)
Technical Comparison Table
| Model | Description | Key Characteristics | Dimensions | Weight (kg) |
|---|---|---|---|---|
| 330901-00-08-70-02-RU | Compact configuration probe | Short cable, tight installation environments | 8 mm × ~55 mm | ~0.17 |
| 330901-00-10-70-02-RU | Standard configuration probe | Balanced cable length, general industrial use | 8 mm × ~60 mm | ~0.19 |
| 330901-00-15-70-02-RU | Extended reach probe | Long cable for remote mounting systems | 8 mm × ~70 mm | ~0.27 |
| 330905-00-12-70-02-RU | High-temperature variant | Enhanced thermal resistance for extreme conditions | 8 mm × ~65 mm | ~0.22 |
| 330908-00-12-70-02-RU | Heavy-duty reinforced probe | Improved vibration resistance and shielding | 8 mm × ~70 mm | ~0.25 |
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 and displacement 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 330901-00-12-70-02-RU proximity probe is a high-precision industrial sensing device designed for continuous monitoring of rotating machinery.
It provides accurate and stable measurement of shaft vibration and displacement, supporting condition-based maintenance strategies in critical industrial systems.
Its robust construction, stable signal performance, and compatibility with standardized monitoring architectures make it suitable for long-term deployment in demanding environments.
The model is widely used in power generation, petrochemical, and heavy industrial sectors where equipment reliability is essential.