Bently Nevada 330876-02-50-00-00 3300 XL 50mm Proximity Probe

Product Overview The Bently Nevada 330876-02-50-00-00 is an ultra-high-range 50mm proximity probe in the 3300 XL series. It is designed for extreme large-machinery applications where very large shaft movement must be accurately measured. Typical applications include hydroelectric turbines, large steam turbines, and heavy industrial rotating equipment with significant axial or radial displacement. Technical Specifications Item Details Series 3300 XL 50mm Proximity Transducer System Part Number 330876-02-50-00-00 Unthreaded Length Option (-02) 2.0 inches Overall Case Length Option (-50) 5.0 inches Total Length Option (-00) 0.5 meters (approx. 1.6 feet) Connector Option (-00) Standard miniature coaxial connector Operating Temperature -51°C to +177°C (-60°F to +351°F) Linear Range Up to 25.4 mm (1000 mils) Condition 100% Brand New and Original Engineering Advantages Maximum Linear Measurement Range Provides up to 25.4 mm (1000 mils) of linear range, enabling accurate tracking of large axial movements in massive rotating machinery where smaller probes would exceed range limits. Superior Signal Integrity Despite its large sensing range, the system maintains strong signal-to-noise performance. The larger coil design supports greater standoff distance, reducing the risk of probe-to-shaft contact (“rub”). Hermetically Sealed Construction The PPS probe tip and sealed body design prevent contamination from oil, moisture, and high-pressure fluids, ensuring long-term stability in harsh environments. High-Temperature Stability Calibrated for operation up to 177°C, maintaining accurate scale factor performance during turbine start-up, shutdown, and full-load conditions. ClickLoc Connector System Gold-plated ClickLoc connectors provide secure locking with tactile feedback, ensuring stable electrical connection under high vibration and corrosive conditions. FAQs Why choose a 50mm probe instead of an 8mm or 25mm probe? An 8mm probe only supports ~2 mm range, and a 25mm probe supports a moderate range. The 50mm probe is required when shaft movement exceeds 25.4 mm, such as in large hydro or steam turbine thrust systems. Can this probe be used with an 8mm or 25mm Proximitor? No. The 50mm probe must be paired with a dedicated 3300 XL 50mm Proximitor. Each system is impedance-matched and not interchangeable. What does the 0.5-meter length represent? It refers to the integrated probe cable length before connection to the extension cable. It is typically combined with system-specific extension cables to achieve total calibrated system lengths. Is this product supplied as original equipment? Yes. The unit is supplied 100% brand new and original, delivered in factory-sealed Bently Nevada packaging with full serial traceability and documentation.