Bently Nevada 330104-01-05-50-01-CN – Detailed Technical Overview

1. Product Overview

The Bently Nevada 330104-01-05-50-01-CN is a high-precision eddy current proximity probe designed for non-contact measurement of shaft vibration and radial displacement in rotating machinery.

This probe belongs to the 3300 XL Proximity Probe Series, which is widely recognized for industrial machinery monitoring and protection applications. This particular model features a medium-length probe with a 0.5-meter system cable, optimized for installations where the sensor and monitoring electronics are in close proximity but require moderate installation flexibility.

Engineered for harsh industrial environments, this probe delivers reliable and precise vibration and displacement data, ensuring effective machinery protection, condition-based maintenance, and rotor dynamic monitoring.

2. Brand

• Brand: Bently Nevada
• Industry Role: Leader in industrial vibration monitoring and non-contact sensing systems for rotating equipment, widely deployed in power generation, petrochemical, oil & gas, and heavy industry applications.

Bently Nevada products are known for their long-term stability, rugged construction, and integration with predictive maintenance systems.

3. Series

• Series: 3300 XL Proximity Probe Series
• Technology: Eddy current non-contact sensing
• Components: Probe, extension cable, and proximitor sensor
• System Application: Shaft vibration and radial position measurement, rotor monitoring, machinery protection systems

The 3300 XL series is engineered for standardized sensitivity, robust construction, and long-term operational stability in critical industrial installations.

4. Technical Specifications

5. Product Description

The 330104-01-05-50-01-CN probe is designed to provide high-accuracy, non-contact measurement of radial shaft displacement and vibration amplitude.

Using eddy current technology, the probe outputs a voltage signal proportional to the distance between the probe tip and a conductive shaft surface. This eliminates mechanical wear, ensuring long-term reliability.

The 0.5-meter system cable is ideal for compact installations where the monitoring electronics are nearby. The probe’s stainless steel construction and IP67 protection allow operation in harsh industrial environments with dust, oil, and vibration exposure.

Its threaded mounting and standard miniature connector provide quick installation and easy maintenance.

6. Applications

The 330104-01-05-50-01-CN is used in various rotating machinery monitoring tasks, including:

• Steam turbines
• Gas turbines
• Centrifugal and reciprocating compressors
• Pumps
• Electric motors
• Gearboxes

Typical measurement capabilities:

• Radial shaft vibration amplitude
• Axial displacement and rotor position
• Phase and speed reference for keyphasor signals
• Condition monitoring for predictive maintenance

The short cable makes it ideal for installations with localized monitoring panels.

7. Product Advantages

• Non-contact measurement: Eliminates wear and friction.
• High accuracy and stability: Provides precise and repeatable analog output.
• Compact design: Suitable for tight installations.
• Rugged construction: Stainless steel and IP67 protection resist harsh industrial conditions.
• Moderate cable length: 0.5 meters provides flexibility for local monitoring without excess slack.
• Wide operating temperature range: Functions reliably from -40°C to +85°C.
• Easy installation: Threaded mounting and standard connector simplify setup.
• Low maintenance: Non-contact operation reduces service needs.

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