Product Overview

The Bently Nevada 330103-02-17-05-02-05 3300 XL 8mm Proximity Probe provides the critical interface between physical mechanical movement and your machinery protection system. Designed for high-reliability vibration and displacement monitoring, this probe excels in the harsh environments of power generation, oil and gas, and petrochemical processing.

It functions as a non-contacting sensor, delivering precise radial vibration and axial position data to Bently Nevada 3500 series racks or Emergency Shutdown (ESD) systems. By utilizing advanced eddy current technology, this probe maintains exceptional linearity and pressure sealing, ensuring that critical turbine and compressor assets remain under constant, accurate surveillance. Its robust construction minimizes signal drift, providing the stability required for long-term predictive maintenance and the prevention of catastrophic equipment failure.

Suffix Configuration Analysis

330103-02-17-05-02-05 Decoding

Each segment of the model number defines the physical and electrical characteristics required for specific mounting environments and regulatory compliance.

Unthreaded Length (-02)

This designates an unthreaded length of 0.2 inches on the probe case, allowing for specific depth adjustments within the mounting bracket.

Overall Case Length (-17)

The -17 suffix specifies a 1.7-inch overall case length. This compact size is ideal for standard bearing housings where space is constrained but structural rigidity is required.

Total Length (-05)

This indicates a 0.5-meter (approximately 20-inch) total probe length. This cable must be paired with the correct extension cable to meet the total 5.0m or 9.0m system calibration requirements.

Connector and Cable Option (-02)

This option provides a miniature coaxial connector with a factory-installed connector protector. The protector is essential for shielding the junction from moisture and industrial contaminants.

Agency Approval (-05)

The -05 suffix confirms Multiple Approvals, including ATEX, IECEx, and CSA certifications, authorizing use in Class I, Division 1 and Zone 0/1 hazardous areas globally.

Technical Specifications

Field Commissioning Protocol

Gap Voltage Adjustment

During installation, engineers must set the "Gap" to the linear center of the sensor's range. For a standard 3300 XL system, this typically corresponds to a -10.00 VDC output at the Proximitor. Ensure the target material is AISI 4140 steel to maintain factory-calibrated accuracy.

Connector Integrity

Always utilize the provided connector protector. In high-vibration environments, moisture ingress at the connector junction is the leading cause of "Signal Intermittent" alarms. Ensure the ClickLoc connectors are fully seated and locked before sealing the protector.

Cable Protection

Maintain a minimum bend radius of 25.4 mm (1.0 inch) for the lead cable. Use stainless steel flexible armor or conduit when routing cables through areas with potential mechanical impact or high-velocity oil spray.

Core Engineering Advantages

Enhanced Thermal Stability

The 3300 XL series incorporates a patented tip-to-case bonding process that withstands extreme thermal cycling. This ensures the probe remains calibrated even as the machine transitions from cold-start to full-load operating temperatures, eliminating "nuisance trips."

Seamless System Integration

This probe integrates natively with Bently Nevada 3500/40M or 3500/42M monitors. The high-fidelity analog signal can be seamlessly shared with Honeywell Experion PKS via Modbus or specialized I/O modules, facilitating real-time visualization of machine health.

Chemical and Pressure Resistance

The probe tip is constructed from high-performance polyphenylene sulfide (PPS), providing immunity to most synthetic lubricants and corrosive process gases. The internal seal is rated for high-pressure applications, preventing oil leakage from bearing housings.

Fulfillment and Logistics

Rapid Global Dispatch

Standard delivery occurs within 3-5 days when payment finish. We prioritize time-sensitive outages, utilizing DHL, FEDEX, or UPS for expedited international transit to minimize downtime.

Heavy-Duty Industrial Packaging

Each unit is shipped in its original Bently Nevada factory box with anti-static industrial packaging. We employ reinforced secondary boxing and shock-absorbent materials to ensure the precision-ground probe tip arrives without micro-fractures or thread damage.

Technical Support FAQ

Q1: How do I verify the health of the 330103 probe in the field?

A1: Measure the resistance between the center pin and the outer shell of the coaxial connector. A healthy 3300 XL 8mm probe typically measures between 4.0 and 11.0 ohms. An infinite reading indicates a broken internal coil.

Q2: Can I use this probe with a 3300 XL 11mm Proximitor?

A2: No. The 8mm probe and 11mm Proximitor are calibrated to different resonant frequencies and scale factors. Mixing them will result in inaccurate data and non-linear output.

Q3: What is the benefit of the -05 Approval option?

A3: The -05 option allows for a single spare-part type to be stocked for both non-hazardous and hazardous areas, simplifying inventory management while ensuring compliance with ATEX and CSA safety standards.

Q4: Is a 0.5m probe cable long enough for my installation?

A4: The 0.5m length is intended for use inside a machine housing. It must be connected to an extension cable (typically 4.5m or 8.5m) to reach the Proximitor sensor located in a junction box.