Bently Nevada 330105-02-12-10-02-BR Full Technical Overview

1. Product Title

330105-02-12-10-02-BR 3300 XL 8 mm Reverse Mount Proximity Probe System

2. Brand

This product belongs to a globally established industrial condition monitoring and machinery protection technology brand specializing in vibration monitoring, shaft displacement measurement, and predictive maintenance systems for rotating equipment.

3. Product Series

3300 XL 8 mm Proximity Transducer System (Reverse Mount Configuration)

This series is widely used in critical rotating machinery where accurate, continuous monitoring of shaft vibration and position is required.

4. Product Introduction

The 330105-02-12-10-02-BR is an 8 mm reverse mount proximity probe used for high-precision, non-contact measurement of shaft vibration and axial displacement.

It operates using eddy current sensing technology, which enables accurate detection of distance changes between the probe tip and conductive metal surfaces such as rotating shafts.

The “BR” suffix typically indicates a region-specific configuration or certification variant, often related to ordering or compliance packaging, while maintaining the same core electrical and mechanical performance as the standard 3300 XL 8 mm reverse mount probes.

This probe is normally part of a complete measurement chain consisting of:

• Proximity probe
• Extension cable
• Signal conditioning unit (proximitor sensor)

Together, they form a complete vibration monitoring system for industrial machinery protection.

5. Technical Parameters

Key Specification Table

6. Product Applications

This probe is designed for continuous monitoring of rotating machinery in heavy industrial environments.

Main Applications:

• Steam turbine shaft vibration monitoring
• Gas turbine rotor position detection
• Centrifugal compressor protection systems
• Industrial pump vibration monitoring
• Motor bearing condition analysis
• Oil & gas production equipment monitoring
• Petrochemical rotating machinery systems
• Power generation plant diagnostics and protection

7. Product Advantages

1. High Precision Non-Contact Measurement

Provides stable and accurate shaft vibration and displacement readings without physical contact.

2. Reverse Mount Installation Flexibility

Suitable for tight or restricted mechanical spaces.

3. High Temperature Resistance

Reliable operation in extreme environments up to 177°C.

4. Strong Mechanical Durability

Rugged stainless steel construction with reinforced cable structure.

5. Stable Industrial Signal Output

Designed for low-noise performance in electrically harsh environments.

6. Modular System Compatibility

Fully compatible with matching extension cables and signal conditioning modules.

7. Long Operational Life

No mechanical wear due to non-contact measurement principle.

8. Working Principle

The system operates based on the eddy current displacement principle:

• A high-frequency electromagnetic field is generated by the probe
• The conductive shaft surface induces eddy currents
• Distance changes alter the electromagnetic field response
• The system converts this into a proportional voltage signal

This enables real-time monitoring of vibration and shaft position with high accuracy.

9. System Composition

A complete monitoring system includes:

• 8 mm reverse mount proximity probe (this model)
• Extension coaxial cable
• Proximitor signal conditioning module

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