Product Overview

The Bently Nevada 330104-05-13-10-02-05 3300 XL 8mm Proximity Probe represents the pinnacle of non-contacting displacement sensing technology. Specifically engineered for larger mounting requirements with its 1/2-20 thread housing, this probe delivers critical data for radial vibration and axial thrust measurements in high-speed rotating machinery. It serves as a foundational component for Turbine Supervisory Instrumentation (TSI), feeding high-fidelity signals directly into the Bently Nevada 3500 monitoring rack to prevent catastrophic mechanical failure.

By maintaining an industry-leading 200 mV/mil scale factor, this probe ensures that even the most minute shaft instabilities are captured in real-time. Whether deployed in steam turbines, large centrifugal compressors, or high-output pumps, its robust construction provides the stability required for Emergency Shutdown (ESD) systems. Its seamless compatibility with industrial DCS platforms, including Honeywell Experion, ensures your maintenance team has the actionable diagnostic data needed for predictive maintenance strategies.

Hardware Configuration Analysis

330104-05-13-10-02-05 Suffix Identification

The alphanumeric coding for the 330104 series defines the mechanical envelope and electrical certification for the 1/2-20 threaded probe variant.

Unthreaded Length (-05)

The 05 suffix indicates a 0.5-inch unthreaded length at the probe tip. This design facilitates easier insertion through mounting sleeves or thick brackets, ensuring the threaded section only engages where intended for secure depth adjustment.

Overall Case Length (-13)

The 13 suffix specifies a 1.3-inch overall case length. This compact housing is ideal for internal mounting applications or installations within constrained bearing housings where a shorter physical footprint is required to avoid mechanical interference.

Total Length (-10)

This designates a 1.0-meter (approximately 3.3 feet) integral lead cable. To ensure proper system resonance and a calibrated 5.0m or 9.0m signal path, this probe must be paired with the corresponding 3300 XL extension cable.

Connector and Protection (-02)

This unit features a miniature coaxial connector equipped with a factory-installed connector protector. This specialized sleeve prevents conductive fluids and environmental contaminants from compromising the signal junction between the probe and extension cable.

Agency Approvals (-05)

The 05 code signifies Multiple Approvals (ATEX, IECEx, CSA). This comprehensive certification allows for legal and safe deployment in Zone 0 and Class I, Div 1 hazardous locations across global markets.

Technical Performance Profile

Field Commissioning Directives

Gap Voltage Optimization

Precise gapping is mandatory for valid vibration data. Adjust the mechanical distance between the probe tip and the shaft to produce a quiescent gap voltage of -10.00 VDC. This optimizes the sensor within its linear region, preventing signal clipping during high-vibration events and ensuring maximum sensitivity for axial position monitoring.

Target Surface Integrity

The 3300 XL series is factory-calibrated for AISI 4140 steel. If your application involves different shaft metallurgy, you must apply a correction factor within the monitor software. Ensure the target surface is free from magnetic "scratching" or physical runout, as these defects manifest as false vibration signals.

Cable Bend and Routing

Maintain a minimum bend radius of 25.4 mm (1.0 inch) for the integral lead. Avoid excessive tension or kinking, as any mechanical deformation of the coaxial core will alter the electrical impedance and introduce "glitch" into the signal. Use the provided connector protector to isolate the junction from bearing oil.

Core Engineering Advantages

Thermal and Chemical Resilience

Utilizing high-performance polyphenylene sulfide (PPS) for the probe tip, the 330104 series withstands extreme thermal cycling without dimensional shift. This prevents the "DC gap drift" common in low-tier sensors, ensuring accuracy from cold start-up to full-load operation.

Industrial Synergy

This probe integrates seamlessly into the broader Bently Nevada ecosystem, providing the raw data required for System 1 diagnostic software. Its high-resolution output allows for advanced orbit analysis and frequency spectrum evaluation, enabling engineers to identify specific faults like unbalance, misalignment, or bearing wear.

Shielding and EMI Rejection

The specialized coaxial construction provides superior rejection of electromagnetic interference (EMI). This is critical in modern plants where high-frequency noise from VFDs and large switchgear can otherwise corrupt sensitive machinery protection signals.

Global Fulfillment & Logistics

Rapid Deployment Standards

We ensure a delivery time of 3-5 days when payment finish. All international orders are prioritized for air freight via DHL, FEDEX, or UPS, providing full door-to-door tracking for critical machinery maintenance windows.

High-Integrity Industrial Packaging

Every 330104-05-13-10-02-05 probe is shipped in New Original Pack condition. Our logistics team utilizes specialized anti-static industrial packaging and heavy-duty cushioning to protect the precision-machined threads and sensitive coaxial leads during transcontinental transit.

Technical Support FAQs

Q1: What is the primary difference between the 330101 and the 330104?

A1: The 330104 features a 1/2-20 thread housing, whereas the 330101 uses a 3/8-24 thread. The 330104 is chosen for applications requiring a larger, more robust mounting thread or for replacement in existing 1/2-20 tapped holes.

Q2: Can I use this probe with an older 3300 series Proximitor?

A2: While technically possible, the 3300 XL probe is optimized for the 3300 XL Proximitor. Using it with non-XL components may result in a slightly reduced linear range or a shift in the scale factor. For TSI compliance, matching XL components is recommended.

Q3: Why is the -02 connector protector necessary?

A3: Coaxial connections are sensitive to conductive contaminants. The protector prevents bearing oil from entering the connector interface, which would otherwise create a partial short and cause the monitor to show a "NOT OK" status.

Q4: Does the -05 approval cover all hazardous zones?

A4: The -05 Multiple Approval covers North American (CSA), European (ATEX), and International (IECEx) standards for Zone 0 and Class I, Division 1, making it suitable for almost any hazardous industrial environment.