Bently Nevada 330730 3300 Proximity Transducer System

The Bently Nevada 330730 3300 is a complete eddy‑current proximity transducer system for the 3300 and 3500 machinery monitoring platforms. It consists of probe, extension cable and oscillator/demodulator, used to measure shaft vibration, shaft position and rotor gap of rotating equipment.

This eddy‑current sensor can capture tiny shaft displacement without physical contact and output linear voltage signals to monitoring modules. It features stable performance under high temperature and strong interference environments. It is a common aftermarket spare part for turbomachinery monitoring system maintenance, sensor aging replacement and field retrofitting projects.

Main Specifications

• Brand: Bently Nevada; Model:330730 3300; Type:Eddy‑Current Proximity Transducer System
• System composition:Probe, extension cable, oscillator‑demodulator assembly
• Measurement principle:Non‑contact eddy‑current sensing for shaft displacement and vibration
• Output:Linear DC voltage signal, matched with Bently 3300 / 3500 monitor racks
• Function:Shaft vibration measurement, axial position monitoring, rotor gap and eccentricity detection
• Feature:Non‑contact measurement, strong anti‑interference capability, high linearity
• Operating Environment:‑35℃ ~ +180℃ at probe tip, adaptable to turbine casing high‑temperature sites
• Certifications:Industrial turbomachinery monitoring certification for power and petrochemical applications

Core Functions

• Non‑contact real‑time detection of shaft radial vibration and axial displacement of rotating machinery.
• Convert mechanical clearance changes into standard linear voltage signals for monitoring modules.
• Work continuously under high temperature, oil mist and severe electromagnetic interference industrial environments.
• Provide reliable raw vibration and position data for 3500 protection system to trigger machine alarms.
• Detect rotor eccentricity and thrust pad wear for early prediction of bearing and shaft faults.
• Complete matched sensor solution for upgrading or rebuilding Bently Nevada online monitoring systems.

Application Scenarios

• Shaft vibration and position sensing unit for Bently Nevada 3300 and 3500 machinery protection systems.
• Critical spare sensor for steam turbine, gas turbine and centrifugal compressor monitoring cabinets.
• Retrofit and spare replacement for aged proximity probes and cables in old monitoring systems.
• Online condition monitoring of large rotating units in power plants, petrochemical and energy industries.
• Thrust position supervision and shaft vibration protection for heavy‑duty industrial rotating equipment.

• Global aftermarket spare supply for maintenance teams maintaining Bently Nevada turbomachinery monitoring hardware.