Product Overview

The Bently Nevada 330104-16-21-05-01-05 8 mm Proximity Probe delivers high-accuracy shaft displacement measurement for critical rotating machinery protection systems. It operates within the proven 3300 XL eddy current platform, ensuring stable, noise-resistant signal transmission in harsh industrial environments.

This probe continuously monitors vibration and axial movement in turbines, compressors, pumps, and industrial motors. It provides real-time mechanical condition feedback that supports predictive maintenance strategies and emergency shutdown logic. The design ensures consistent performance under thermal stress, oil exposure, and high vibration density conditions commonly found in power generation and oil & gas applications.

Technical Configuration (Suffix Logic Breakdown)

330104 defines the 8 mm 3300 XL proximity probe platform engineered for standard industrial vibration monitoring applications.

16 specifies the cable length configuration optimized for extended mounting distance requirements in turbine systems.

21 identifies connector type and termination style designed for stable signal integrity under high EMI industrial conditions.

05 indicates probe case and mechanical configuration optimized for rigid mounting alignment and long-term stability.

01 defines standard calibration and factory configuration without special certification or customized tuning.

05 represents environmental and assembly variant ensuring compatibility with Bently Nevada 3300 XL and 3500 monitoring systems.

Technical Specifications

Installation Guidance

Maintain correct air gap alignment between probe tip and rotating shaft target surface to ensure linear response across the calibrated range.

Avoid mechanical stress during installation and ensure minimum cable bend radius of 50 mm to prevent signal distortion or insulation fatigue.

Apply proper grounding through Proximitor system reference earth to eliminate electromagnetic interference in turbine control environments.

Verify full compatibility with extension cable assemblies before energizing the monitoring system.

Engineering Advantages

The probe maintains stable performance under extreme vibration, thermal cycling, and oil-contaminated industrial environments. Its eddy current sensing architecture ensures long-term signal stability without calibration drift.

It integrates seamlessly with Bently Nevada TSI platforms and GE-compatible monitoring systems including 3500 rack protection systems and Experion PKS-based DCS environments.

This ensures reliable shaft monitoring for critical rotating assets, reducing unplanned downtime and enhancing machinery protection in high-value industrial operations.

Ordering Information

(1) Bently Nevada 330104-16-21-05-01-05 Proximity Probe
(2) Factory calibration and traceability documentation (if applicable)
(3) Anti-static industrial protective packaging
(4) Optional extension cables and Proximitor modules available upon request

Delivery Information

Delivery time is 3–5 days after payment confirmation or 2–7 days depending on logistics route. Shipments are handled via DHL, FEDEX, or UPS with full tracking support.

Each unit is secured in reinforced anti-static industrial packaging to ensure safe international transit and protection against electrostatic discharge and mechanical vibration.

Technical FAQs

Q1: What is the main function of this proximity probe?
A1: It continuously measures shaft vibration and displacement in rotating machinery using eddy current sensing technology.

Q2: Is this model compatible with Bently Nevada 3500 systems?
A2: Yes, it integrates directly with 3300 XL and 3500 monitoring platforms for full vibration protection capability.

Q3: What does the suffix “16-21-05-01-05” indicate?
A3: It defines cable length, connector type, probe configuration, calibration setup, and environmental assembly variant.

Q4: Can it operate in high-temperature turbine environments?
A4: Yes, it is engineered for stable performance from -40°C to +177°C in harsh industrial conditions.