Bently Nevada 330104-01-05-50-02-05 – Comprehensive Product Overview

1. Product Overview

The Bently Nevada 330104-01-05-50-02-05 is a high-precision eddy current proximity probe designed for non-contact measurement of shaft vibration, radial position, and displacement in industrial rotating machinery.

It belongs to the 3300 XL Proximity Probe Series, which is widely used in rotor monitoring, machinery protection systems, and predictive maintenance applications. This specific model features a medium-length probe case and a 2-meter system cable, with the “02-05” suffix indicating a specialized connector and internal assembly configuration tailored for certain industrial installations.

This probe is suitable for harsh environments, offering high accuracy, repeatability, and long-term stability in applications such as turbines, compressors, pumps, and large electric motors.

2. Brand

• Brand: Bently Nevada
• Industry Role: Recognized as a leading provider of industrial vibration monitoring, condition-based maintenance, and machinery protection instrumentation.
• Reputation: Known for durable, reliable, and precise probes that withstand extreme operating environments.

3. Series

• Series: 3300 XL Proximity Probe Series
• Sensing Technology: Eddy current (non-contact)
• Components: Probe, system cable, proximitor sensor
• Applications: Radial shaft vibration, rotor position tracking, phase/speed reference (keyphasor) signals

The 3300 XL series emphasizes robust mechanical construction, modularity, and long-term measurement stability. It is widely integrated into industrial monitoring systems globally.

4. Technical Specifications

This combination provides reliable measurements while enabling flexible installations in industrial machinery environments.

5. Product Description

The 330104-01-05-50-02-05 is designed for precise, continuous, and non-contact monitoring of machinery vibration and radial shaft displacement.

It operates on eddy current principles, generating an analog voltage proportional to the distance between the probe tip and a conductive shaft. The non-contact design ensures minimal wear, reduced maintenance, and high signal stability over time.

The medium-length probe case allows mounting in machine housings with typical clearance limitations, while the 2-meter cable facilitates routing to remote monitoring electronics. Its stainless steel construction and IP67 rating provide protection against dust, moisture, oil, and vibration.

6. Applications

Typical applications include:

• Steam and gas turbine radial vibration monitoring
• Compressor rotor position tracking
• Centrifugal and reciprocating pump vibration monitoring
• Electric motor shaft monitoring
• Gearbox radial displacement measurement

System functions:

• Radial shaft vibration measurement
• Rotor position and axial displacement tracking
• Keyphasor signals for phase and speed reference
• Integration into predictive maintenance systems
• Machinery protection trip signals

The probe’s 2-meter cable enables installation flexibility, especially when monitoring electronics are located away from the probe mounting point.

7. Product Advantages

• Non-contact measurement: Eliminates wear, extends service life.
• High accuracy and repeatability: Stable analog output.
• Flexible installation: 2-meter cable allows remote electronics placement.
• Robust construction: Stainless steel body and oil-resistant cable.
• IP67 protection: Resistant to dust, moisture, and industrial contamination.
• Medium-length case: Fits in compact housings.
• Wide operating temperature range: -40°C to +85°C.
• Minimal maintenance: Non-contact design reduces calibration frequency.

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