Bently Nevada 330101-00-47-10-02-00 3300 XL 8 mm Proximity Probe

Precision Vibration Sensing for Critical Machinery

The Bently Nevada 330101-00-47-10-02-00 belongs to the trusted 3300 XL series and provides exceptional displacement measurements for rotating equipment. This 8 mm probe system features a tip diameter of 8.1 mm and a case diameter of 14.2 mm for stable mounting. Its total length reaches 80 mm, with a threaded section of 21.6 mm and an unthreaded portion of 30.5 mm. The device weighs approximately 90 grams and supports a standard -24 Vdc negative power supply. Operators can rely on this sensor for continuous shaft vibration and position monitoring in demanding environments.

Measurement Capabilities and Accuracy

This proximity probe delivers a linear range from 0.25 mm to 2.03 mm with a sensitivity of 7.87 mV/µm. It captures frequency responses from 0 to 10 kHz, covering both static gap and dynamic vibration signals. The system maintains a tip temperature rating of -35°C to +177°C, while the extension cable withstands up to +260°C. Such thermal resilience ensures stable performance across steam turbines, gas compressors, and large pumps. The probe also includes a polyurethane jacket that resists oils, hydraulic fluids, and mechanical abrasion.

Detailed Technical Specifications

System Components and Connectivity

This model includes the probe body, a 10.0 meter extension cable, and two robust coaxial connectors. The integral connector at the probe end provides a reliable environmental seal against moisture and dust. Users can connect this probe directly to the Bently Nevada 3300 XL 8mm Proximitor or the 3500 Monitoring System for seamless signal processing. The system stores negligible internal energy, supporting intrinsic safety for hazardous area installations. Standard 22 AWG wires terminate at the driver side terminal block for straightforward field wiring.

Installation and Operational Benefits

Installing this proximity probe requires a 14 mm open-end wrench and basic mounting brackets. The threaded case enables precise gap adjustments using the supplied locking nut mechanism. Routine checks of the cable jacket and connector pins help maintain measurement integrity over time. This sensor excels in predictive maintenance programs where early detection of shaft movement prevents costly breakdowns. Pair it with a matching target material, such as AISI 4140 steel, to align with the factory calibration curve. The probe’s robust construction and long cable length offer flexibility for remote mounting configurations.