Product Overview

The Bently Nevada 330102-00-44-10-11-05 3300 XL 8mm Proximity Probe provides the critical high-fidelity data required for modern machinery protection systems. Engineered for non-contacting displacement measurement, this metric-threaded probe excels in capturing radial vibration, shaft position, and speed on high-speed rotating assets. It serves as a frontline sensory component in Turbine Supervisory Instrumentation (TSI), ensuring the safe operation of steam turbines, centrifugal compressors, and large motors.

By utilizing advanced eddy current technology, this probe maintains absolute signal integrity even in oil-saturated bearing housings. The 3300 XL series is globally recognized for its superior linearity and thermal stability, allowing plant operators to identify subtle rotor instabilities before they escalate into catastrophic failures. This specific model, equipped with specialized armor, ensures maximum uptime in environments where mechanical protection of the signal lead is a non-negotiable requirement.

Suffix Logic and Hardware Configuration

330102-00-44-10-11-05 Breakdown

This model number defines a precise physical architecture designed for global metric mounting standards and hazardous area compliance.

Unthreaded Length (-00)

The 00 suffix indicates a fully threaded probe case. This provides engineering teams with maximum flexibility to adjust the insertion depth during commissioning, ensuring perfect alignment with the target shaft.

Overall Case Length (-44)

This indicates an overall case length of 4.4 inches. This mid-range body size allows the probe to penetrate standard machine casings while maintaining the structural rigidity necessary to resist high-frequency mechanical resonances.

Total Length (-10)

This designates a 1.0-meter total probe length. To ensure the electrical tuned circuit remains within factory specifications, this lead must be paired with the correct 3300 XL extension cable to achieve a total 5.0m or 9.0m system length.

Connector and Armor Option (-11)

The 11 suffix represents a miniature coaxial connector with Fluidic Armor. This stainless steel flexible armor protects the cable from mechanical abrasion, hot oil spray, and chemical exposure, while the connector ensures a low-impedance electrical path.

Agency Approval (-05)

The 05 code confirms Multiple Approvals (ATEX, IECEx, CSA). This enables worldwide deployment in Zone 0 and Class I, Division 1 hazardous areas when integrated with the appropriate intrinsic safety barriers.

Technical Performance Profile

Precision Installation Directives

Gap Voltage Commissioning

Technicians must set the quiescent gap voltage to -10.00 VDC during installation. This centers the sensor within its 80-mil linear range. Use a calibrated voltmeter at the Proximitor output and ensure the target shaft material is AISI 4140 steel to maintain scale factor accuracy.

Armor Routing and Grounding

The -11 armor option provides exceptional mechanical protection but requires careful routing. Maintain a minimum bend radius of 25.4 mm (1.0 inch). Ensure the system is grounded at a single point—typically the Proximitor end—to prevent ground loops from introducing 50/60 Hz noise into the vibration signal.

Thread Integrity

Since this is a 330102 metric probe, verify that the mounting bracket or sleeve utilizes M10 x 1 threads. Never force the probe into a standard 3/8-24 UNF thread, as this will destroy the probe case and compromise the environmental seal of the bearing housing.

Engineering Superiority and Integration

Unrivaled Thermal Resilience

The 3300 XL probe tip utilizes high-performance Polyphenylene Sulfide (PPS). This material resists degradation from synthetic lubricants and thermal cycling, ensuring the DC gap remains stable as the machine transitions from cold-start to full-load operation.

Total System Synergy

This probe acts as the "eyes" for Bently Nevada 3500/42M or 3500/40M monitors. It integrates natively with Honeywell Experion PKS or Siemens PCS7, providing the high-fidelity analog inputs necessary for advanced spectral analysis and System 1 diagnostic software.

Harsh Environment Durability

The combination of the PPS tip and stainless steel armored lead allows the probe to survive in aggressive chemical and high-vibration zones. The gold-plated connectors ensure long-term electrical stability and resistance to oxidation in humid plant environments.

Logistics and Global Fulfillment

Accelerated Delivery

We guarantee rapid processing with a delivery time of 3-5 days when payment finish. All international shipments are prioritized via DHL, FEDEX, or UPS, providing door-to-door tracking for critical maintenance outages.

Technical Packaging Standards

Every unit is dispatched in New Original Pack condition. We utilize anti-static industrial packaging and shock-absorbent secondary boxing to protect the precision M10 threads and the armored cable during global transit.

Expert Technical Support FAQ

Q1: What is the primary benefit of the -11 Armor Option?

A1: The stainless steel fluidic armor prevents physical damage to the coaxial cable in areas where mechanical abrasion or high-velocity oil spray could otherwise lead to cable failure and signal loss.

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

A2: While they may be physically compatible, the 3300 XL series offers significantly better temperature stability. For optimum accuracy, it is recommended to use the 3300 XL Proximitor specifically tuned for this probe type.

Q3: How do I verify the health of an armored probe?

A3: Measure the DC resistance between the center pin and the outer shield of the connector. A healthy 8mm probe typically shows a resistance between 4.0 and 11.0 ohms. An open circuit indicates a failed internal coil.

Q4: Is the -05 approval valid for both Europe and North America?

A4: Yes. The -05 Multiple Approval includes ATEX/IECEx for European/International zones and CSA/NRTL for North American Class I, Division 1 areas, making it a universal spare part.