Product Overview

The Bently Nevada 330104-00-16-05-02-00 3300 XL 8mm Proximity Probe provides the critical data stream required for high-stakes machinery protection. Engineered for non-contacting displacement measurement, this probe specializes in monitoring radial vibration and axial position on large-scale rotating assets. Its larger 1/2-20 thread body offers superior mechanical stability compared to standard variants, making it a staple in heavy-duty Turbine Supervisory Instrumentation (TSI).

By maintaining a consistent 200 mV/mil scale factor, this probe allows the Bently Nevada 3500 monitoring system to identify shaft instabilities with micron-level precision. Whether deployed in steam turbines, centrifugal compressors, or high-output industrial motors, the 330104 series guarantees signal integrity even in oil-saturated bearing environments. Integrating this probe into your control architecture provides the high-fidelity input necessary for reliable Emergency Shutdown (ESD) logic and advanced predictive maintenance via System 1 diagnostics.

Hardware Configuration Analysis

330104-00-16-05-02-00 Suffix Logic

Each segment of this alphanumeric model number specifies the physical and electrical parameters required to match your machine's mechanical envelope.

Unthreaded Length (-00)

The 00 suffix indicates a 0.0-inch unthreaded length. The entire probe case features 1/2-20 UNF threads, allowing for maximum depth adjustment range within the mounting bracket or housing.

Overall Case Length (-16)

This code specifies a 1.6-inch overall case length. This compact, short-body design is ideal for internal mounting applications or installations within constrained bearing housings where spatial clearance is at a premium.

Total Length (-05)

This designates a 0.5-meter (approx. 20-inch) integral lead cable. To achieve a complete 5.0m or 9.0m system calibration, this probe must be connected to the corresponding 3300 XL extension cable and Proximitor sensor.

Connector and Protection (-02)

This model features a miniature coaxial connector paired with a factory-installed connector protector. This protector is critical for preventing oil ingress and environmental contamination from degrading the high-frequency signal junction.

Agency Approvals (-00)

The 00 suffix represents the standard configuration without specific hazardous area approvals. It is designed for use in general industrial environments where localized explosion-proof certification is not required.

Technical Performance Profile

Precision Commissioning Directives

Gap Voltage Stabilization

Achieving the correct mechanical gap is vital for signal linearity. Set the probe tip-to-target distance to achieve a quiescent gap voltage of -10.00 VDC at the Proximitor output. This centers the sensor in its 80-mil linear range, allowing for maximum shaft excursion without signal distortion.

Target Surface Integrity

The 3300 XL system is factory-calibrated for AISI 4140 steel. If the target material differs, the scale factor will shift. Ensure the target area on the shaft is free from scratches, magnetic spots, or mechanical runout, as these defects manifest as false vibration signals, known as "glitch."

Lead Management

Maintain a minimum bend radius of 25.4 mm (1.0 inch) for the integral lead. Never kink the coaxial cable, as mechanical deformation changes the electrical impedance. Ensure the connector protector is fully seated to prevent conductive bearing oil from shorting the signal.

Field Resilience Advantages

Superior Thermal Stability

The 3300 XL probe utilizes a patented tip-to-case bonding process and high-grade PPS tip material. This eliminates the "DC gap drift" common in low-tier sensors during machine thermal cycles, ensuring accurate position data from cold-start to full-load operation.

Industrial Ecosystem Synergy

This probe acts as the primary sensory input for Bently Nevada 3500/42M monitors. It integrates seamlessly with Honeywell Experion PKS or other enterprise DCS platforms, providing the high-resolution data required for advanced orbit analysis and frequency spectrum evaluation.

Harsh Environment Durability

Gold-plated ClickLoc connectors provide a low-resistance connection that resists oxidation in humid atmospheres. The 330104 series maintains its calibration even under high-frequency mechanical stress, extending the Mean Time Between Failures (MTBF) for your machinery protection suite.

Logistics & Global Fulfillment

Accelerated Delivery Standards

We provide a delivery time of 3-5 days when payment finish. All international orders are dispatched via premium air freight using DHL, FEDEX, or UPS. This ensures door-to-door tracking and rapid deployment for critical machinery maintenance windows.

High-Integrity Industrial Packaging

Every 330104-00-16-05-02-00 probe is shipped in New Original Pack condition. Our logistics team employs specialized anti-static industrial packaging and heavy-duty cushioning to protect the precision-machined threads and sensitive coaxial leads from mechanical shock during transcontinental transit.

Engineering Support FAQs

Q1: What is the main difference between the 330101 and 330104 series?

A1: The 330104 features a larger 1/2-20 thread body, whereas the 330101 uses a 3/8-24 thread. The 330104 is typically chosen for its increased mechanical robustness and compatibility with larger tapped holes in industrial housings.

Q2: Can I use this 0.5m probe without an extension cable?

A2: No. The Proximitor requires a specific total system length (typically 5.0m or 9.0m) to maintain its resonant frequency. Operating the 0.5m probe alone will result in massive scale factor errors and non-linear data.

Q3: How do I verify the electrical health of the probe?

A3: Measure the DC resistance between the center pin and the outer shell of the connector. A healthy 3300 XL 8mm probe typically measures between 4.0 and 11.0 ohms. An infinite reading indicates an open circuit (broken coil).

Q4: Does the -02 connector protector provide an oil-tight seal?

A4: It provides a high degree of splash protection and prevents environmental contaminants from entering the junction. For applications involving complete submersion in fluid, a FluidLoc cable version or additional environmental boots may be recommended.