Bently Nevada 330703-000-040-10-11-00 11 mm Tip Diameter Proximity Probe with AISI 304 Stainless Steel Case and 4.0 mm Linear Range

Utilizes advanced non-contact eddy current technology for continuous, high-accuracy radial vibration monitoring and axial thrust position measurement on high-speed rotating machinery.

Features an 11 mm tip diameter engineered specifically to deliver an extended linear range of 4.0 mm (160 mils) and a standardized scale factor of 3.94 V/mm (100 mV/mil) for reliable data tracking.

Built with a durable AISI 304 stainless steel case and a robust Polyphenylene Sulfide (PPS) tip, offering IP67-rated ingress protection against harsh industrial contaminants and oil film exposure.

Equipped with a miniature coaxial ClickLoc connector and an integrated connector protector, ensuring a moisture-resistant, vibration-proof link to the standard triaxial extension cable.

Fully compatible with Bently Nevada 3300 XL Proximitor Sensors and 3500 series rack modules (such as 3500/40M and 3500/42M), forming a critical component of emergency shutdown systems (ESD).

Built for harsh turbine conditions, where temperature swings are not exactly gentle. It keeps stable performance from about -34°C up to +177°C (-30°F to +350°F), which is why it shows up a lot in steam and gas turbine service. In practice, it’s the kind of probe you put in critical spots and don’t really want to worry about again—hot sections, humid turbine halls, oil mist environments, all of that.

Deployed globally in power plant instrumentation to monitor high-temperature steam turbines and gas turbines, providing continuous feedback on shaft stability and rotor dynamics.

Serves as the primary non-contact sensing element in emergency shutdown systems (ESD), triggering automated machinery protection routines before catastrophic failure occurs.

Optimized for monitoring heavy industrial rotating machinery equipped with fluid film bearings, precisely tracking oil film thickness and oil whip phenomena.

Used on both centrifugal and reciprocating compressors to keep an eye on axial displacement and radial shaft vibration. In real plant setups, especially oil, gas, and petrochemical units, it’s basically part of the core protection loop for high-value rotating equipment. It helps catch shaft movement issues and vibration trends early, so operators don’t end up dealing with unexpected trips or damage on critical compressor trains.

Delivers accurate data for thrust position monitoring, radial vibration monitoring, shaft eccentricity detection, and differential expansion tracking across various power train architectures.

Acts as a direct-fit spare part for existing Bently Nevada 3500 rack systems, interfacing seamlessly with 3500/40M Proximitor monitors and 3500/42M machinery protection cards.