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- Bently Nevada
- 330105-02-12-50-02-00
- 3300 XL 8 mm Proximity Probes
- USA
- 20.4 × 22.2 × 3.7 cm
- 0.323kg
- Xiamen, China
- New & In Stock
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Bently Nevada 330105-02-12-50-02-00 Full Technical Overview
1. Product Title
330105-02-12-50-02-00 3300 XL 8 mm Reverse Mount Proximity Probe
2. Brand
This product belongs to a globally recognized industrial condition monitoring technology brand widely used for vibration monitoring, shaft displacement measurement, and rotating machinery protection systems in power generation, petrochemical, and heavy industrial applications.
3. Product Series
3300 XL 8 mm Proximity Transducer System (Reverse Mount Type)
This series is designed for high-precision non-contact measurement of shaft vibration and position in critical rotating machinery such as turbines, compressors, pumps, and motors.
4. Product Introduction
The 330105-02-12-50-02-00 is an 8 mm reverse mount proximity probe designed for continuous monitoring of rotating equipment condition.
It uses eddy current sensing technology, which detects distance changes between the probe tip and conductive metallic shaft surfaces without physical contact.
The “50” configuration in this model indicates a 5.0-meter system length design, typically used with matching Proximitor systems optimized for longer cable runs.
The reverse mount structure allows installation in confined mechanical spaces where axial or conventional mounting cannot be used.
This probe is normally part of a complete 3-component system:
- Proximity probe
- Extension cable
- Proximitor signal conditioning module
Together, they form a stable vibration monitoring chain for predictive maintenance and machinery protection.
5. Technical Parameters
Key Specification Table
| Parameter | Specification |
|---|---|
| Model | 330105-02-12-50-02-00 |
| Series | 3300 XL 8 mm Reverse Mount System |
| Measurement Principle | Eddy current non-contact displacement |
| Probe Diameter | 8 mm |
| Mounting Type | Reverse mount configuration |
| System Length | 5.0 meters (16.4 ft) |
| Output Signal | Analog voltage proportional to vibration/displacement |
| Linear Range | ~2.0 mm (system dependent) |
| Operating Frequency | ~50 kHz excitation system |
| Connector Type | Miniature ClickLoc coaxial connector |
| Cable Type | FluidLoc sealed coaxial cable |
| Material (Body) | Stainless steel (AISI 303/304) |
| Tip Material | PPS (Polyphenylene Sulfide) |
| Sealing | Viton O-ring pressure sealing |
| Operating Temperature Range | -52°C to +177°C |
| Extended Temperature Capability | Up to +218°C (tip region) |
| Dimensions | ~20.4 × 22.2 × 3.7 cm |
| Weight (kg) | 0.323 kg |
6. Product Applications
This probe is widely used in industrial rotating machinery monitoring systems where long-distance and stable signal transmission is required.
Main Applications:
- Steam turbine vibration monitoring
- Gas turbine rotor displacement measurement
- Large centrifugal compressor monitoring
- Industrial pump condition monitoring
- Generator shaft vibration analysis
- Oil & gas pipeline compressor systems
- Petrochemical process equipment
- Power plant rotating machinery diagnostics
7. Product Advantages
1. Long-distance system design
The 5.0 m configuration supports extended installation layouts in large machines.
2. Non-contact measurement
Ensures no mechanical wear and long-term stability.
3. High thermal resistance
Stable operation up to 177°C under harsh industrial conditions.
4. Sealed industrial construction
FluidLoc cable prevents oil and fluid ingress.
5. High mechanical durability
Stainless steel housing resists corrosion and vibration stress.
6. Strong signal stability
Designed for low drift and high repeatability in harsh environments.
7. Modular architecture
Fully compatible with extension cable + proximitor systems.
8. Working Principle
The probe operates based on the eddy current displacement principle:
- High-frequency electromagnetic field is generated
- Conductive shaft surface induces eddy currents
- Gap changes alter electromagnetic response
- Output voltage reflects vibration/displacement level
This allows precise real-time condition monitoring of rotating machinery.
9. System Composition
A complete system includes:
- 8 mm reverse mount proximity probe (this model)
- 5.0 m coaxial extension cable
- Proximitor signal conditioning module
10. Recommended 5 Related Models (Same Series)
| Model | Description | Key Parameter |
|---|---|---|
| 330105-02-12-50-12-05 | Certified version | Agency approved variant |
| 330105-02-12-50-12-CN | Regional compliance version | CN certification |
| 330105-02-12-05-02-00 | Standard reverse mount probe | General industrial use |
| 330105-02-12-20-02-00 | Medium configuration probe | Alternative mounting setup |
| 330105-02-12-15-12-05 | Extended cable variant | Flexible installation |
11. Recommended 5 Popular Models (Same Brand)
| Model | Category | Key Parameter |
|---|---|---|
| 3300 XL 8 mm Proximitor Sensor | Signal module | Converts probe signal to vibration output |
| 3300 XL 11 mm Proximity Probe | Probe system | Larger measurement range |
| 3500/42M Vibration Monitor | Protection system | Multi-channel vibration monitoring |
| 3500/32 Relay Module | Control module | Alarm and shutdown logic |
| 1900/65 Condition Monitoring System | Diagnostic platform | Multi-asset predictive monitoring |
12. FAQ (10 Questions & Answers)
Q1: What is this probe used for?
A1: It is used to measure shaft vibration and displacement in rotating machinery.
Q2: What technology does it use?
A2: Eddy current non-contact displacement sensing.
Q3: What does “50” mean in the model code?
A3: It indicates a 5.0-meter system length configuration.
Q4: Is it suitable for long cable runs?
A4: Yes, it is designed for 5-meter system architectures.
Q5: Does it touch the shaft?
A5: No, it operates without physical contact.
Q6: What industries use it?
A6: Power generation, oil & gas, petrochemical, and heavy industry.
Q7: What is its operating temperature range?
A7: From -52°C to +177°C.
Q8: What is the weight?
A8: Approximately 0.323 kg.
Q9: Is it a standalone device?
A9: No, it must be used with cable and proximitor module.
Q10: What is the main advantage over mechanical sensors?
A10: No wear, higher reliability, and long-term stability.