Product Overview

The Bently Nevada 330104-05-10-50-02-RU stands as a fundamental pillar in the 3300 XL 8mm Proximity Transducer System, specifically engineered for high-precision displacement and vibration monitoring. This probe converts the physical gap between the sensor tip and a conductive target into a precise voltage output, providing the high-fidelity data required for Turbine Supervisory Instrumentation (TSI).

Designed for the most demanding rotating machinery—including steam turbines, centrifugal compressors, and heavy-duty pumps—this probe ensures maximum reliability and uptime. It adheres strictly to API 670 standards, offering a linear range and temperature stability that field engineers trust for mission-critical emergency shutdown systems (ESD) and condition monitoring. Its robust construction resists corrosive fluids and high-pressure environments, maintaining signal integrity where standard sensors fail.

Transducer Nomenclature Analysis

The alphanumeric suffix string defines the specific mechanical and regulatory configuration of the 330104 series probe.

05 - Unthreaded Length Option

This specifies a 50mm (approx. 2.0 inches) unthreaded length on the probe case, allowing for specific insertion depths into machine housings or brackets while maintaining structural rigidity.

10 - Overall Case Length

Defines a 100mm (approx. 4.0 inches) total case length. This dimension is critical for ensuring the probe reaches the target surface through thick insulation or casing walls without mechanical interference.

50 - Total Length Option

Indicates a 5.0-meter (16.4 feet) total length for the integrated probe cable. This length is optimized to reach local junction boxes or Proximitor sensors without excessive signal attenuation.

02 - Connector and Cable Option

Specifies a miniature coaxial connector with FEP insulation and a high-strength cable jacket, ensuring chemical resistance and mechanical durability in oil-soaked environments.

RU - Regulatory Approval

The "RU" designation indicates specific certification for the Russian market (Gost-R / TR CU), ensuring the component meets localized explosion-proof and metrological standards.

Technical Specifications

Critical Installation Protocol

Engineers must prioritize the mechanical "Gap" setting during installation. A standard 3300 XL 8mm probe typically requires a center-gap voltage of -10.0 Vdc, representing the midpoint of the linear range. Use a digital multimeter at the Proximitor sensor's output to verify this voltage before securing the locknut.

Avoid over-tightening the probe, as excessive torque can deform the case and affect the internal coil's calibration. Ensure the cable bend radius never drops below 25.4 mm (1.0 inch) to prevent internal coaxial damage. For hazardous areas, verify that the RU-certified conduit fittings are properly sealed to maintain the integrity of the explosion-proof loop.

Engineering Performance Advantages

This probe offers total system interchangeability. Unlike legacy systems that require matching specific probes to specific cables, the 330104-05-10-50-02-RU allows for "hot-swapping" components without recalibrating the Proximitor sensor. This significantly reduces Mean Time To Repair (MTTR) during plant turnarounds.

The 3300 XL technology features advanced circuitry that minimizes "skin effect" errors on the target material, ensuring high-accuracy readings even on non-ideal shaft surfaces. It integrates seamlessly with Bently Nevada 3500/42M modules and industrial DCS platforms like Honeywell Experion PKS, providing a transparent data path from the machine train to the control room.

Shipping and Logistics

Delivery time: 3-5 days when payment finish, BY DHL/FEDEX/UPS.

Every probe is vacuum-sealed in anti-static industrial packaging to prevent contamination of the sensitive tip and connector.

Technical Support FAQ

Q1: Can I use this probe with a standard 3300 (non-XL) Proximitor?

A1: Yes, the 3300 XL 8mm probe is backward compatible with the standard 3300 series Proximitors, though you should verify total cable length (5m vs 9m) for calibration accuracy.

Q2: What is the significance of the RU suffix for international projects?

A2: The RU suffix ensures the probe is compliant with Russian Federation technical regulations. While functionally identical to standard probes, it carries the necessary paperwork for legal installation in those regions.

Q3: Does this probe require a specific target material?

A3: The system is factory-calibrated for AISI 4140 steel. Using other materials (e.g., stainless steel or aluminum) will alter the scale factor and require custom calibration at the Proximitor level.