Bently Nevada 330930-065-01-05 – 3300 XL NSv Proximity Probe for Precise Shaft Vibration/Position Monitoring

The Bently Nevada 330930-065-01-05 is part of the 3300 XL NSv proximity transducer system, widely used for shaft vibration, shaft position, and keyphasor-style measurements on compact or tightly confined machine trains. It pairs with a matching 3300 XL NSv Proximitor sensor and extension cable to deliver stable eddy-current displacement signals for API-compliant condition monitoring. One thing I appreciate is how consistent these NSv probes are in small radial clearances—typically where a standard 8 mm probe just won’t fit cleanly.

The suffix “-065-01-05” defines a specific cable length and connector/boot configuration within the 330930 family. You might notice that customers usually pick this build when they want a tidy routing path inside dense bearing housings or limited-access gearbox covers. From my experience, it’s a straightforward swap-in for existing 3300 XL NSv probe points, minimizing rework when you’re standardizing spares across multiple sites.

Order Placement Process and Guarantees

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

Key Features

• NSv probe form factor – Designed for narrow spaces and small bearing housings where standard probes are hard to fit.
• Stable eddy-current measurement – Delivers a clean displacement signal for shaft vibration and position trending when used with the matching Proximitor.
• Factory-matched pairing – Probe, cable, and Proximitor are calibrated as a system to maintain linearity and sensitivity in most cases.
• Ruggedized cable build – The “-065-01-05” configuration typically supports reliable routing through tight paths without signal compromise.
• API 670–style monitoring compatibility – Commonly integrated with Bently Nevada monitors for machinery protection and diagnostics.
• Predictable maintenance – Technicians can quickly verify gap and bias voltage, helping reduce troubleshooting time.

Technical Specifications

Brand / Model	Bently Nevada 330930-065-01-05 (3300 XL NSv Proximity Probe)
HS Code (reference)	9031.80 – Measuring/Checking instruments (proximity/displacement transducer system)
Power Requirements	Powered via matching 3300 XL NSv Proximitor sensor (system supply typically −24 Vdc to the Proximitor)
Dimensions & Weight	NSv probe tip small-diameter design; integral cable length as defined by “-065” option; weight varies with cable length
Operating Temperature	Typically −35 to +85°C depending on cable and installation; high‑temperature versions may differ
Signal Input/Output Types	Eddy-current displacement probe; Proximitor provides proportional voltage output and buffered dynamic signal
Communication Interfaces	Analog only via Proximitor (no digital comms on the probe)
Installation Method	Threaded mechanical mounting into a probe bracket or bearing housing; connects to extension cable and NSv Proximitor

Application Fields

Plants typically deploy the 330930‑065‑01‑05 in tight spots on:

• Steam and gas turbines (journal bearings, thrust position points)
• Compressors and expanders where clearance is limited
• Pumps and motors with compact bearing caps
• Gearboxes with narrow inspection windows
• Fans and blowers where 5 mm–class probes are preferred for space

A maintenance lead at a refinery mentioned the NSv probe “seems to be the only thing we can fit on a few legacy pump skids without fabricating new brackets,” which lines up with what we see in many cases.

Advantages & Value

• Reliability – Stable bias and scale factor when paired with the correct Proximitor reduce nuisance trips and rework.
• Compatibility – Designed for the 3300 XL NSv system; integrates with common Bently Nevada monitoring racks and modules.
• Lifecycle cost – Consistent performance typically means fewer site callouts and less time spent on gap adjustments.
• Technical support – Clear part coding helps align spares across units, simplifying procurement and maintenance planning.

Installation & Maintenance

• Mounting – Use the specified probe bracket or threaded port; lock the probe after setting the correct gap to the shaft (follow site procedure).
• Wiring – Route the integral cable cleanly to the extension cable and then to the NSv Proximitor; avoid sharp bends and high‑EMI zones.
• Cabinet & ventilation – Install the Proximitor in a clean, dry enclosure with adequate ventilation; DIN rail or panel mounting as specified.
• Safety – Isolate machinery and verify LOTO; check for oil ingress or vibration-induced chafing on the cable run.
• Routine checks – Periodically verify gap and bias voltage at the Proximitor, clean probe tip if contaminated, and document any drift.
• Calibration – Keep the probe, cable, and Proximitor as a matched set; if replacing one component, re-validate scale factor as good practice.

Quality & Certifications

• Typically conforms to CE and RoHS requirements for industrial monitoring equipment
• Manufactured under ISO 9001 quality systems (manufacturer-level)
• Warranty: 12 months from delivery

Compatible/Supporting Components

• 3300 XL NSv Proximitor sensor (for powering and signal conditioning)
• Matching 3300 XL NSv extension cable (length/connector style to suit the installation)
• Bently Nevada monitoring systems (e.g., API 670–style protection and condition monitoring modules)

Note: The “-065-01-05” options define cable length and connector/boot configuration for this probe build; confirm your existing cable/Proximitor options before placing an order.