Bently Nevada 330703-000-050-10-02-00 – Proximity Probe for Shaft Vibration/Position in 3300 XL Systems

The Bently Nevada 330703-000-050-10-02-00 is a factory‑matched proximity probe from the 3300 XL family, used for non‑contact measurement of shaft vibration and axial position on critical machinery. One thing I appreciate is how the option code “050” indicates a 5.0 m integral cable, which makes routing inside tight machine spaces a bit easier. In most cases you pair this probe with a 3300 XL Proximitor Sensor and the appropriate extension cable to achieve the calibrated system length your monitor expects. It’s a straightforward, durable choice for turbines, compressors, and large pumps where stable eddy‑current measurement really matters.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• 3300 XL family compatibility – Designed to work with 3300 XL Proximitor Sensors and extension cables for calibrated system lengths.
• 5.0 m integral cable – The “-050” option streamlines routing from the probe location to the junction area; typically helps reduce connection points in harsh environments.
• Non-contact eddy-current measurement – Reliable shaft vibration and position measurements without mechanical contact, minimizing wear.
• Factory-matched accuracy – Probe, extension cable, and Proximitor are matched as a set for stable sensitivity and linearity across the intended gap range.
• Industrial ruggedness – Stainless-steel probe body and shielded cable construction handle oil mist, moderate temperature, and machine-level vibration.
• Drop-in maintenance – From my experience, these probes are straightforward to replace during planned outages, keeping calibration consistent when lengths match.

Technical Specifications

Application Fields

This probe is typically deployed on:

• Steam and gas turbines for shaft radial vibration and differential expansion monitoring
• Compressors and expanders where tight clearances require stable non-contact measurement
• Large pumps, fans, and blowers to trend bearing and shaft condition
• Gearboxes and generators needing continuous condition monitoring

A maintenance lead at a petrochemical site told us the 3300 XL probe set “held calibration through the outage and came back within spec,” which, in many cases, is what saves time during restart.

Advantages & Value

• Reliability on critical assets – Stable readings reduce nuisance trips and missed faults.
• Compatibility you can plan around – Works within established 3300 XL architectures; minimal changes to racks or wiring.
• Lifecycle cost control – Proven field performance typically lowers unplanned downtime and repeat maintenance.
• Technical support – Assistance with probe identification, length matching, and system calibration checks before you install.

Installation & Maintenance

• Cabinet/environment – Install the Proximitor in a ventilated control cabinet; avoid high EMI and direct heat sources.
• Mounting – Thread the probe into the machine casing; lock with the supplied nut. Set the nominal gap per the machine and target material (steel target, clean surface).
• Cable routing – Use gentle bends; maintain bend radius; keep away from high-voltage pairs; shield terminations per Bently Nevada practice.
• Verification – After installation, perform gap voltage and linear range checks with the monitor; confirm direction and polarity.
• Routine upkeep – Periodically inspect the tip for deposits, re-check gap, and verify readings during outages. Firmware updates apply to monitors—not the passive probe.
• Safety – De-energize associated monitors before making or breaking connections; follow site LOTO and hazardous area procedures.

Quality & Certifications

• Typically supplied with CE conformity; many variants carry UL/cUL and ATEX/IECEx approvals (Zone 2) depending on options
• Manufactured under ISO-based quality systems (brand standard)
• Warranty: 365 days from shipment