Bently Nevada 330101-00-48-10-02-05 Proximity Probe for Vibration And Shaft Displacement Monitoring

The Bently Nevada 330101-00-48-10-02-05 is a 3300 XL series non-contact proximity probe used for measuring shaft vibration and displacement in critical rotating machinery. It pairs with a matching 3300 XL Proximitor Sensor and extension cable to deliver the well-known 200 mV/mil (7.87 mV/μm) system sensitivity that most API 670 installations expect. From my experience, this configuration is a safe choice for turbines, compressors, and large pumps where stability and interchangeability really matter.

• 3300 XL transducer performance – When used with the matched 3300 XL Proximitor and cable, you get a typical 200 mV/mil (7.87 mV/μm) scale factor and a wide linear range for reliable vibration and position measurements.

• Stable readings over temperature – The probe and cable assembly are designed for industrial environments, typically handling large ambient swings without drift that throws off trends.

• Suffix-configured cable length – The “-48” configuration usually indicates a 4.8 m integrated probe cable, making routing cleaner in tight racks or long runs to the proximitor.

• Compatible with Bently Nevada 3300/3500 systems – A straightforward drop-in in many cases, with gap voltage and sensitivity that maintenance teams already know.

• Threaded mounting – Locknut and bracket-friendly installation, with metric or UNF options depending on the suffix code.

• Designed for ferromagnetic targets – Optimized for typical shaft steels (e.g., AISI 4140), which you’ll find across mainstream turbomachinery.

You’ll typically see the 3300 XL probe on:

• Steam and gas turbines – shaft radial vibration (X/Y), differential expansion, and axial position when paired with the correct transducer chain.

• Centrifugal compressors and expanders – stable vibration trending through start-up and thermal ramps.

• Large pumps and motors – bearing housing-mounted brackets for non-contact shaft monitoring.

• Generators and gearboxes – displacement and gap monitoring where contact sensors struggle.

One reliability engineer told us their team swapped in a 3300 XL probe on a hot standby compressor and “the bias voltage came in exactly where we expected; trending looked clean right away,” which seems to be the norm with properly matched lengths.

• Reliability you can trend – Stable sensitivity and linearity reduce nuisance alarms and recalibration cycles.

• System compatibility – Works with Bently Nevada 3300/3500 monitors when paired with the proper Proximitor and cable length; supports API 670-style practices.

• Lower lifecycle cost – Durable cable and probe tip typically extend service intervals; fewer unplanned swaps.

• Simplified spares strategy – Suffix-defined lengths and threads help standardize across multiple machines.

• Mounting – Use the specified threaded boss and locknut(s). Ensure probe tip is aimed at a clean, flat shaft surface. Maintain the recommended nominal gap (often set using the Proximitor bias voltage).

• Cable routing – Keep the coax away from high-voltage conductors and variable-frequency drive cables; respect minimum bend radius and secure against vibration.

• Panel/cabinet – Install the Proximitor in a ventilated enclosure; typical ?24 Vdc power, proper grounding/shield termination per Bently Nevada wiring practices.

• Safety – Lockout/tagout rotating equipment before any gap adjustment. Do not touch the probe tip to the rotating surface.

• Routine checks – Periodically verify bias voltage and overall sensitivity, clean the probe tip, and inspect connectors for corrosion. Firmware updates apply to the monitor, not the probe itself.

• Conformity – CE marking and RoHS compliance are typical for 3300 XL components.

• Hazardous areas – Many 3300 XL configurations are available with agency approvals (e.g., ATEX/IECEx/CSA) when specified; check the exact suffix.

• Warranty – Manufacturer’s standard limited warranty (commonly 1 year) applies to genuine parts.

Note: The 330101-00-48-10-02-05 is a specific configuration within the 3300 XL proximity probe family. Exact thread type, tip style, and connector orientation are defined by the suffix codes. If you’re matching an existing machine setup, sharing your current probe, extension cable, and proximitor part numbers helps ensure the correct transducer length and sensitivity.