BENTLY 330103-00-17-10-02-00 – Proximity Probe for Precise Shaft Vibration and Position Monitoring

The BENTLY 330103-00-17-10-02-00 belongs to the 3300 XL proximity transducer family, widely used on turbines, compressors, and high‑speed rotating assets. From my experience, this model is typically selected where you need a compact 5 mm probe tip and stable linear response for both dynamic vibration and shaft position (gap) measurements. Pair it with the matching Proximitor Sensor and extension cable, and you get the classic 200 mV/mil (7.87 mV/µm) output that most Bently Nevada monitoring systems expect. You might notice that it’s particularly forgiving in tight spaces while still delivering clean, repeatable data.

Order Placement Process & 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

• Proven 3300 XL performance – Delivers the standard 200 mV/mil (7.87 mV/µm) output when paired with the matching Proximitor Sensor, so it drops into most installed Bently Nevada systems without re-engineering.
• Compact 5 mm probe tip – Fits congested bearing housings or tight radial measurement points while maintaining reliable linearity over the typical range.
• Non-contact eddy-current sensing – Stable gap and vibration signals on conductive targets (commonly AISI 4140 steel), ideal for critical machine protection loops.
• Rugged construction – Designed for harsh industrial environments; typically holds up under oil mist, temperature cycling, and continuous operation.
• System compatibility – Commonly used with 330130 extension cables and 330180 Proximitor Sensors for a fully matched transducer chain.
• Service-friendly – Threaded mounting with jam nut or optional sleeves makes probe positioning and re-gapping straightforward during outages.

Technical Specifications

Application Fields

Typically used on large rotating machinery where reliability matters: steam/gas turbines, centrifugal compressors, gearboxes, high-speed electric motors, and critical process pumps. It’s often installed on bearing housings for radial vibration, and on thrust bearings for axial position/trend. One thing I appreciate is how consistently it performs in oil-lubricated environments and near hot casings—conditions that would challenge lighter-duty sensors.

Advantages & Value

• Reliability in protection loops – Stable signal conditioning for API-compliant monitoring, which in many cases reduces nuisance trips.
• Compatibility – Works seamlessly with Bently Nevada monitors and standard proximitor scaling, simplifying spares strategy and technician training.
• Lifecycle cost – Long service life in harsh duty typically lowers sensor replacement frequency and unplanned downtime.
• Technical support – Clear installation practices and well-known behaviors make troubleshooting faster for maintenance teams.

Installation & Maintenance

• Mounting – Install in a rigid, grounded metal bracket or bearing housing. Use the supplied jam nut or approved sleeve. Maintain a clean, flat target (steel) surface for best linearity.
• Gap setting – Set the nominal gap around 1.0 mm (40 mils) unless your monitoring system specifies otherwise. Verify with the monitor’s DC bias reading.
• Cabinet and wiring – Route the probe and extension cable away from high-voltage conductors. Proximitor Sensors should be mounted in a ventilated cabinet; -24 VDC supply must be clean and within spec.
• Safety – De-energize the machine before mechanical adjustments. Use proper shielding/grounding to avoid noise coupling into the dynamic signal.
• Routine care – Inspect probe tips for fouling during outages, wipe with lint-free cloth, and check cable integrity and connectors. Functional checks and monitor calibration annually are usually sufficient.
• Firmware/monitor updates – If paired with modern monitors, keep their firmware current to maintain alarm processing accuracy and trending features.

Quality & Certifications

• Certifications – CE and RoHS compliance are standard for most Bently Nevada 3300 XL transducer components; UL recognition is commonly available.
• Manufacturer standards – Built to stringent vibration monitoring requirements for industrial environments.
• Warranty – 365-day warranty from us on this item; manufacturer’s standard policy also applies where relevant.

Compatible Components (for a matched system)

• Extension Cable: 330130 series (length per site requirement)
• Proximitor Sensor: 330180 series (3300 XL; provides the 200 mV/mil scaling)
• Monitors (examples): 3500 Series or equivalent Bently Nevada condition monitoring racks

Quick note from the field: a maintenance lead at a combined-cycle plant told us the 3300 XL probes “behave the same outage after outage,” which seems to be the quiet advantage—fewer surprises when you bring the units back online.