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- Bently Nevada
- 330105-02-12-90-02-05
- 3300 XL 8 mm Proximity Probes
- USA
- 260 × 60 × 30 mm
- 0.5kg
- Xiamen, China
- New & In Stock
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Bently Nevada 330105-02-12-90-02-05 Full Technical Overview
1. Product Title
330105-02-12-90-02-05 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, oil & gas, petrochemical, and heavy industrial environments.
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 330105-02-12-90-02-05 is an 8 mm reverse mount proximity probe designed for continuous monitoring of rotating machinery conditions.
It operates using eddy current sensing technology, enabling accurate detection of the distance between the probe tip and conductive metallic shaft surfaces without physical contact.
The “90” in the model code indicates a 9.0-meter system length configuration, commonly used in large industrial installations requiring extended cable routing between probe and monitoring modules.
The reverse mount design allows installation in restricted mechanical spaces where conventional axial mounting cannot be used.
This probe is typically part of a full monitoring system consisting of:
- Proximity probe
- Extension cable
- Proximitor signal conditioning module
Together, they form a complete vibration monitoring chain for machinery protection and predictive maintenance.
5. Technical Parameters
Key Specification Table
| Parameter | Specification |
|---|---|
| Model | 330105-02-12-90-02-05 |
| 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 | 9.0 meters (29.5 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 |
| Cable Type | Industrial coaxial extension cable |
| Material | Stainless steel probe housing |
| Tip Material | PPS (Polyphenylene Sulfide) |
| Operating Temperature Range | -51°C to +177°C |
| Dimensions | ~8–10 cm probe body + cable assembly |
| Packaging Size | ~260 × 60 × 30 mm |
| Weight (kg) | 0.30 – 0.50 kg (typical assembly) |
6. Product Applications
This probe is widely used in industrial rotating machinery where long-distance, stable vibration measurement is required.
Main Applications:
- Steam turbine shaft vibration monitoring
- Gas turbine rotor displacement measurement
- Large compressor condition monitoring systems
- Industrial pump vibration monitoring
- Generator shaft vibration analysis
- Oil & gas pipeline compressor systems
- Petrochemical rotating equipment
- Power plant predictive maintenance systems
7. Product Advantages
1. Long-distance system design
Supports 9.0 m installation architecture for large industrial equipment.
2. Non-contact measurement
No mechanical wear and long operational life.
3. High thermal resistance
Reliable performance up to 177°C.
4. Strong signal stability
Optimized for low noise over long cable distances.
5. Rugged industrial construction
Stainless steel housing ensures corrosion and vibration resistance.
6. Modular compatibility
Works with extension cables and proximitor modules.
7. Continuous monitoring capability
Suitable for 24/7 critical machinery protection systems.
8. Working Principle
The probe operates using the eddy current displacement principle:
- High-frequency electromagnetic field is generated
- Conductive shaft induces eddy currents
- Distance variation changes electromagnetic response
- Output voltage reflects vibration/displacement level
This enables precise real-time monitoring of rotating machinery condition.
9. System Composition
A complete system includes:
- 8 mm reverse mount proximity probe (this model)
- 9.0 m coaxial extension cable
- Proximitor signal conditioning module
10. Recommended 5 Related Models (Same Series)
| Model | Description | Key Parameter |
|---|---|---|
| 330105-02-12-50-02-00 | 5.0 m system version | Medium-length configuration |
| 330105-02-12-20-02-00 | Short system version | Compact installation use |
| 330105-02-12-05-02-00 | Standard reverse mount probe | General industrial application |
| 330105-02-12-10-12-00 | Mid-range configuration | Flexible installation |
| 330105-02-12-90-02-CN | Certified version | Regional compliance variant |
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 | Extended 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 mainly used for?
A1: It is used for measuring shaft vibration and displacement in rotating machinery.
Q2: What technology does it use?
A2: Eddy current non-contact displacement sensing.
Q3: What does “90” represent in the model code?
A3: It indicates a 9.0-meter system length configuration.
Q4: Is it suitable for long-distance installation?
A4: Yes, it is designed specifically for extended cable systems.
Q5: Does it physically contact the shaft?
A5: No, it operates without contact.
Q6: What industries use this probe?
A6: Power generation, oil & gas, petrochemical, and heavy industry.
Q7: What is its operating temperature range?
A7: From -51°C to +177°C.
Q8: What is the typical weight?
A8: Approximately 0.30–0.50 kg depending on configuration.
Q9: Is it a standalone sensor?
A9: No, it requires a cable and signal conditioning module.
Q10: What is its key advantage over mechanical sensors?
A10: No wear, high stability, and long-term reliability.