Bently Nevada 330105-02-12-90-02-00 Full Technical Overview

1. Product Title

330105-02-12-90-02-00 3300 XL 8 mm Reverse Mount Proximity Probe

2. Brand

This product belongs to a globally recognized industrial condition monitoring and machinery protection technology brand widely used in vibration monitoring, shaft displacement measurement, and predictive maintenance systems for rotating equipment in power generation, oil & gas, and heavy industries.

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 330105-02-12-90-02-00 is an 8 mm reverse mount proximity probe designed for continuous monitoring of rotating machinery conditions.

It uses eddy current sensing technology, enabling accurate measurement of the distance between the probe tip and conductive metal shaft surfaces without physical contact.

The “90” configuration indicates a 9.0-meter system length, typically used in large industrial installations requiring long cable routing between probe and monitoring system.

The reverse mount design is used in compact or restricted mechanical layouts where conventional axial installation is not feasible.

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 machinery protection and predictive maintenance.

5. Technical Parameters

Key Specification Table

6. Product Applications

This probe is widely used in industrial rotating machinery where long-distance signal transmission and high reliability are required.

Main Applications:

• Steam turbine vibration monitoring
• Gas turbine rotor displacement measurement
• Large compressor condition monitoring
• Industrial pump vibration analysis
• Generator shaft monitoring
• Oil & gas pipeline compressor systems
• Petrochemical rotating machinery
• Power plant predictive maintenance systems

7. Product Advantages

1. Long-distance system capability

The 9.0 m configuration supports large industrial layouts and remote monitoring setups.

2. Non-contact measurement

Eliminates mechanical wear and ensures long-term stability.

3. High temperature tolerance

Stable operation up to 177°C in harsh environments.

4. Strong signal integrity

Designed for low noise and stable signal transmission over long cable runs.

5. Industrial-grade construction

Stainless steel housing ensures durability and corrosion resistance.

6. Modular system design

Fully compatible 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 surface induces eddy currents
• Distance variation changes electromagnetic response
• Output voltage reflects vibration/displacement level

This enables real-time monitoring of machine condition and early fault detection.

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)

11. Recommended 5 Popular Models (Same Brand)