Bently Nevada 330104-06-12-10-02-00 – 3300 XL 8 mm Proximity Probe for Shaft Vibration and Position Monitoring

The Bently Nevada 330104-06-12-10-02-00 is part of the 3300 XL 8 mm proximity transducer system used on critical rotating equipment. From my experience, this probe is the go‑to when you need stable, non-contact measurements of shaft vibration and axial position on turbines, compressors, and high-speed pumps. It pairs with the 330130 extension cable and the 330171 Proximitor Sensor to deliver a clean, repeatable signal that most monitoring systems recognize straight away.

Our Order Process & Guarantees

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

Key Features

• 3300 XL 8 mm sensing – Non-contact eddy-current measurement for shaft vibration and position. Typically chosen for medium-to-large shaft journals.
• Proven compatibility – Works with 330171 Proximitor Sensor and 330130 extension cable; integrates cleanly with Bently Nevada monitoring racks and common DCS inputs.
• Wide temperature capability – Probe and cable assemblies are typically rated for harsh machine environments, including hot bearing housings.
• Stable linear range – The 8 mm system typically provides an 80 mil (2.0 mm) linear range with excellent repeatability for long-term trending.
• Rugged mechanical design – Threaded mounting with locknut resists loosening; armored cable options (per dash code) handle routing in tight machinery spaces.
• Global spares availability – A widely deployed platform, which makes maintenance planning and replacements more predictable in most plants.

Technical Specifications

Application Fields

Typical deployments include steam and gas turbines, process compressors, centrifugal and reciprocating pumps, generators, motors, fans, and gearboxes. You might notice that plants use this probe wherever gap stability and reliable vibration trend data matter—for example, on a compressor’s radial bearings to track vibration amplitude and on a turbine’s thrust bearing to monitor axial position and early rub conditions.

Advantages & Value

• Reliability in harsh environments – The 3300 XL design has a strong track record in hot, oily, and high-vibration areas.
• Interchangeability – Drop-in compatibility with existing Bently Nevada 3300 XL installations reduces downtime during turnarounds.
• Measurement confidence – Stable sensitivity and linear range support accurate alarm setpoints and historical trending.
• Procurement clarity – Standardized model coding means you can match the dash codes to your installed base, avoiding re-engineering.
• Support ecosystem – Availability of supporting components—330171 Proximitor Sensor, 330130 extension cable—simplifies spares strategy.

Installation & Maintenance

• Mounting – Install the threaded probe into a rigid, properly machined port aimed at the shaft. Use the locknut and set the cold gap to specification (typically around 1.0 mm for 8 mm systems).
• Cabinet & routing – Route the probe lead and extension cable in metal conduit or tray where practical; maintain separation from high-voltage cables to reduce EMI.
• Ventilation – Enclosures for Proximitor/monitoring hardware should allow reasonable airflow; avoid mounting conditioned electronics on hot machinery surfaces.
• Wiring – Keep bends gentle and strain-relieve the cable near the probe. Verify continuity and polarity at the Proximitor terminals before energizing.
• Safety – Lockout/tagout rotating equipment before installation or inspection. Confirm hazardous area approvals for your specific dash code if installed in classified zones.
• Routine checks – Periodically verify gap, inspect cable armor and connectors, and review vibration trends for drift. System calibration is typically verified at the Proximitor/monitor level.

Quality & Certifications

Bently Nevada hardware is typically CE-marked and produced under ISO 9001 quality systems; RoHS-compliant variants are standard in many cases. Certain dash-code versions carry ATEX/IECEx approvals for hazardous areas—best to confirm against the nameplate of your exact 330104-06-12-10-02-00 unit. Warranty on supply is 365 days as stated above.

Supporting Components (for a complete transducer system)

• Extension Cable: Bently Nevada 330130-XX-XX-XX-XX (length and armor per code)
• Proximitor Sensor: Bently Nevada 330171-XX-XX-XX-XX (3300 XL 8 mm Proximitor Sensor)

A quick customer note that seems to resonate: maintenance teams like the 330104 because it “just matches” with installed 3300 XL channels—swap the probe during a shutdown, recheck the gap, and the channel typically returns to its previous calibration without surprises.