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- Bently Nevada
- 330104-12-20-10-02-00
- 3300 XL 8 mm Proximity Probes
- USA
- 200 mm
- 0.34kg
- Xiamen, China
- New & In Stock
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Bently Nevada 330104-12-20-10-02-00 Proximity Probe – Full Technical Profile
1. Product Overview
The 330104-12-20-10-02-00 is an 8 mm eddy current proximity probe used for precise monitoring of shaft vibration, axial displacement, and rotor position in rotating machinery.
It is part of the 3300 XL 8 mm Proximity Transducer System, a widely used industrial standard for machinery protection and condition monitoring in critical rotating equipment.
This probe provides stable, non-contact measurement in harsh industrial environments such as high vibration, high temperature, oil contamination, and dust exposure. It is commonly applied in turbines, compressors, pumps, and generators for continuous monitoring and predictive maintenance.
2. Brand Information
Brand: Bently Nevada
A globally recognized provider of machinery protection systems, vibration monitoring solutions, and predictive maintenance technologies widely used in power generation, oil & gas, petrochemical, and heavy industrial sectors.
3. Product Series
Series: 3300 XL 8 mm Proximity Transducer System
Key characteristics:
- Eddy current non-contact displacement measurement
- High linear accuracy and long-term stability
- Strong resistance to oil, dust, vibration, and industrial contamination
- Modular system design (probe + extension cable + proximitor sensor)
- Designed for continuous 24/7 operation
- Compatible with standardized vibration monitoring systems
Typical performance:
- Linear measurement range: ~0.25 mm to 2.0 mm (system dependent)
- Optimized for rotating machinery shaft monitoring
4. Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 330104-12-20-10-02-00 |
| Measurement Principle | Eddy current proximity sensing |
| Probe Diameter | 8 mm |
| System Series | 3300 XL 8 mm |
| Unthreaded Length | 12 mm |
| Case Length | 200 mm |
| Output Signal | Linear voltage proportional to gap |
| Operating Temperature | -40°C to +125°C |
| Housing Material | Stainless steel |
| Probe Tip Material | PPS engineering polymer |
| Cable Type | Coaxial shielded cable |
| Connector Type | ClickLoc miniature coaxial connector |
| Environmental Protection | Oil, dust, vibration resistant |
| Weight | ~0.22–0.34 kg (typical probe assembly) |
| Dimensions | ~200 mm probe configuration (variant dependent) |
| Installation Type | Threaded mounting |
| Application Mode | Radial / axial shaft monitoring |
5. Product Applications
This probe is widely used in rotating machinery condition monitoring systems:
- Steam turbine vibration monitoring
- Gas turbine rotor displacement tracking
- Hydro turbine stability monitoring
- Centrifugal compressor condition monitoring
- Industrial pump vibration detection
- Gearbox alignment and wear monitoring
- Generator rotor dynamic analysis
- Refinery rotating equipment protection systems
- Power plant predictive maintenance systems
It is particularly effective for early detection of mechanical faults such as:
- Rotor imbalance
- Shaft misalignment
- Bearing wear
- Mechanical looseness
- Rotor instability
6. Product Advantages
- High-precision non-contact displacement measurement
- Stable long-term signal output
- Strong resistance to harsh industrial environments
- Suitable for continuous 24/7 monitoring
- Low signal drift over time
- Fully compatible with 3300 XL system architecture
- Fast and stable response performance
- Minimal maintenance requirements
- High durability in vibration-heavy environments
- Proven reliability in critical rotating machinery
7. Related Models (Same Series / Compatible Variants)
| Model | Type | Key Parameter |
|---|---|---|
| 330104-10-20-10-02-00 | Standard version | 200 mm configuration variant |
| 330104-12-19-10-02-00 | Extended case | 190 mm body length |
| 330104-12-17-10-02-00 | Shorter version | 170 mm body |
| 330104-08-20-10-02-00 | Compact probe | Reduced body size |
| 330105-12-20-10-02-00 | High sensitivity probe | Enhanced resolution |
8. Popular Models (Same Brand)
| Model | Type | Key Specification |
|---|---|---|
| 330104-12-20-10-02-00 | Proximity Probe | 8 mm eddy current probe |
| 330780-90-00 | Proximitor Sensor | Signal conditioning module |
| 330130-080-00-00 | Extension Cable | Standard probe cable |
| 3500/42M | Vibration Monitor Module | Multi-channel monitoring system |
| 3500/15 | Power Supply Module | Rack system power unit |
9. Frequently Asked Questions (FAQ)
Q1: What is the main function of this probe?
A1: It measures shaft vibration and displacement using eddy current non-contact sensing technology.
Q2: Where is it commonly used?
A2: It is installed in turbines, compressors, pumps, and generators.
Q3: Can it operate continuously?
A3: Yes, it is designed for 24/7 industrial monitoring systems.
Q4: What is the measurement principle?
A4: It detects changes in electromagnetic fields caused by conductive shaft movement.
Q5: Is it suitable for harsh environments?
A5: Yes, it is resistant to vibration, oil, dust, and high temperature conditions.
Q6: What output does it provide?
A6: It outputs a linear voltage proportional to shaft displacement.
Q7: Does it require calibration?
A7: It is factory calibrated and generally requires no field adjustment.
Q8: What materials can it measure?
A8: It is optimized for conductive metallic surfaces such as steel shafts.
Q9: What is its service life?
A9: It provides long-term stable performance under proper installation conditions.
Q10: What maintenance is required?
A10: Only periodic inspection of cable condition and mounting integrity is needed.