Bently Nevada 330101-00-09-10-02-CN Proximitor Sensor – 3300 XL 8 mm Proximity Transducer for Critical Machinery

The Bently Nevada 330101-00-09-10-02-CN is a 3300 XL 8 mm Proximitor Sensor used in non-contact shaft vibration, position, and phase reference measurements. It’s a staple on turbines, compressors, and high‑speed pumps, and it integrates smoothly with Bently Nevada 3500/3300 monitoring systems. One thing I appreciate is how stable the -200 mV/mil sensitivity tends to be across typical operating conditions, which in many cases means fewer field adjustments during turnaround windows.

Order Placement Process and Guarantees

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

Key Features

• 3300 XL 8 mm system – Designed for eddy-current proximity measurements on rotating shafts and targets, typically 4140 steel.
• -200 mV/mil sensitivity – Standard scaling (≈7.87 mV/µm) for reliable vibration and position readings used by Bently Nevada monitors.
• Linear range suited to turbomachinery – Typically supports up to ~2.0 mm (80 mil) linear range with stable DC gap voltage.
• Robust Proximitor module – Panel/bulkhead mounting with shielded coax connections to the probe and extension cable for low-noise signals.
• Proven ecosystem compatibility – Works with Bently Nevada 3500/3300 racks, buffered outputs, and standard monitoring cards.
• Option “-CN” – Appears to indicate China-market labeling/compliance marking from the factory; the sensing performance remains the same.

Technical Specifications

Application Fields

From my experience, this model is most often specified where machine protection is non-negotiable:

• Gas/steam turbines: radial vibration, differential expansion, and shaft position
• Compressors and fans: unbalance, rub detection, and amplitude trending
• Pumps and gearboxes: bearing condition and shaft orbit analysis
• Generators and motors: shaft axial position and phase reference
• Refining, petrochemical, and power plants needing API 670-aligned practices

Advantages & Value

• Reliability – The 3300 XL architecture is field-proven; it typically holds calibration well between outages.
• Compatibility – Drop-in with Bently Nevada monitors, existing probe brackets, and standard cabling routings.
• Lifecycle savings – Stable scaling reduces on-site tuning time; fewer nuisance trips often mean lower operating costs.
• Technical support – We help verify option codes (like “-09-10-02-CN”) against your installed base before shipment.

Installation & Maintenance Tips

• Cabinet & grounding – Mount the Proximitor in a clean, dry panel with reliable earth grounding; keep high-voltage cables separate from sensor lines.
• Ventilation – Maintain ambient temperature within the stated range; avoid heat sources and vibration on the panel itself.
• Wiring – Use the specified shielded coax between probe, extension cable, and Proximitor. Terminate shields per OEM drawings to minimize noise.
• Gap setting – Set the probe-to-shaft gap within the recommended window (typically around 1.0–1.5 mm depending on target material); verify DC gap voltage at the rack.
• Routine checks – Inspect connectors, clean probe tips if accessible, and confirm scale factor on the monitor channel during scheduled maintenance.
• Firmware & calibration – While the Proximitor is analog, it’s wise to keep your monitoring rack firmware current and verify channel calibration annually.

Quality & Certifications

• Typical certifications for 3300 XL series include CE and RoHS; many variants also carry UL/CSA approvals.
• Factory option “-CN” generally denotes China-market labeling/compliance; performance specification remains unchanged.
• Manufacturer warranty practices vary by region; our supplied units are covered for 365 days from delivery.

Related / Supporting Components

• 3300 XL 8 mm Probe – Non-contact eddy-current probe installed near the shaft (various thread and length options).
• 330130 Extension Cable – Shielded coaxial cable between probe and Proximitor; choose length to match your run.
• Bently Nevada 3500/3300 Monitoring Racks – Accept the Proximitor’s analog output for protection and condition monitoring.

“We replaced two legacy proximitor modules on a compressor train with the 330101 series. The DC gap settled quickly and trending looked clean—no extra tuning needed.”