Bently Nevada 330104-01-08-50-01-CN 3300 XL 8mm Proximity Probe

Technical Functionality

The Bently Nevada 330104-01-08-50-01-CN serves as a specialized eddy current sensor designed for non-contacting vibration and displacement measurements. This probe detects the relative position and dynamic motion of a rotating shaft by generating a high-frequency electromagnetic field. When the shaft moves, it creates eddy currents that alter the probe’s impedance, which the Proximitor Sensor then converts into an accurate voltage signal. Because it utilizes the 3300 XL platform, this transducer provides superior scale factor stability and remains highly resistant to temperature-induced drift.

Operational Durability

Engineers designed this specific probe model to excel in the most volatile industrial environments. The 330104 series features a ruggedized construction that prevents moisture ingress and resists damage from corrosive lubrication fluids. Furthermore, the “-CN” designation indicates compliance with specific regional certifications, ensuring the unit meets rigorous safety and performance standards for localized markets. By utilizing a polyphenylene sulfide (PPS) probe tip and a stainless steel body, the sensor maintains long-term structural integrity even when subjected to high-pressure conditions within machinery housings.

Key Technical Characteristics

• Sensor Head: 8 mm diameter tip optimized for standard radial vibration and axial thrust measurements.

• Mounting Configuration: Features a 3/8-24 UNF thread for standard installation, though various case lengths are available.

• Linear Range: Delivers a precise 2.0 mm (80 mil) linear range when paired with a calibrated 3300 XL Proximitor.

• Certification: The “-CN” suffix denotes specific compliance and approvals required for the Chinese market and similar regulatory zones.

• Cable Integrity: Includes a high-frequency coaxial cable with a gold-plated Click-Loc connector to ensure low-noise signal transmission.

• Temperature Range: Operates reliably in environments ranging from -35°C to +177°C (-31°F to +351°F).

Primary Industrial Applications

• Steam and Gas Turbines: Continuously monitors shaft vibration and axial position to prevent catastrophic contact with stationary components.

• Centrifugal Compressors: Provides the high-resolution data needed to detect unbalance, misalignment, and bearing wear.

• Hydroelectric Generators: Tracks the motion of large-diameter shafts to ensure structural stability and operational efficiency.

• Cooling Tower Fans: Protects critical ventilation systems from sudden mechanical failure due to structural fatigue or resonance.

Technical Specifications

• Manufacturer: Bently Nevada

• Part Number: 330104-01-08-50-01-CN

• Series: 3300 XL 8mm Proximity Transducer System

• Target Material: Calibrated for AISI 4140 steel (standard)

• Total Length: Configurable (typically 0.5m or 1.0m based on selection)

• System Compatibility: Interfaces with 3300 XL Proximitor Sensors and extension cables

• Compliance: API 670 compliant for machinery protection systems