Bently Nevada 330104-05-10-10-02-05 3300 XL Proximity Probe

This Bently Nevada 3300 XL proximity probe provides non-contact displacement measurements for rotating machinery. It operates with an 8 mm probe tip for standard vibration and position monitoring applications. Engineers can deploy this sensor for radial vibration, axial position, and eccentricity measurements. Its advanced eddy current technology ensures accurate and repeatable readings in demanding industrial environments. The probe integrates seamlessly with Bently Nevada 3500 monitoring systems and Proximitor drivers.

Physical Dimensions and Probe Configuration

The probe measures 2.0 inches in length and 0.4 inches in diameter. Its stainless steel housing weighs approximately 0.5 ounces for lightweight installation. A 5.0-meter coaxial cable connects the probe to the Proximitor driver module. The unit features a 3/8-24 UNF threaded body for standard mounting hole compatibility. This design simplifies installation and gap adjustment in machine casings.

Measurement Range and Target Specifications

The probe offers a linear measurement range of 0.25 mm to 2.0 mm (10 to 80 mils). It requires a ferrous metal target for proper eddy current operation. The unit maintains stable performance with AISI 4140 steel targets or equivalent materials. The probe provides a gap sensitivity of 7.87 V/mm (200 mV/mil) for consistent readings. This performance supports reliable vibration monitoring across various machine types.

Electrical Characteristics and Output Signal

The probe operates on a -24 VDC power supply from the Proximitor driver. It provides a linear output signal of -2 to -18 VDC over the measurement range. The unit achieves a sensitivity of 200 mV/mil for precise displacement measurement. This sensitivity ensures accurate detection of small vibration amplitudes and position changes. The probe maintains linearity within ±1% over its calibrated gap range.

Frequency Response and Dynamic Performance

The probe delivers a frequency response from DC to 10 kHz for comprehensive vibration analysis. This bandwidth captures both static position changes and dynamic vibration events. The unit responds to target movement within 0.5 microseconds typically. This rapid response enables detection of high-frequency machine vibrations. The probe performs effectively at shaft speeds up to 60,000 RPM.

Cable Assembly and Connector Interface

The coaxial cable includes a braided shield for noise immunity in industrial environments. The cable features a jacket resistant to oil, water, and abrasion for harsh conditions. The unit terminates in a standard 3-pin connector for driver module attachment. This connector provides power, signal, and ground connections securely. The cable also includes a positive locking mechanism for vibration-resistant connections.

Temperature Range and Environmental Resistance

The probe operates reliably from -51 to 177 degrees Celsius ambient temperature. Its hermetically sealed housing resists moisture and contaminant ingress effectively. The unit withstands vibration up to 20 g for demanding machine applications. The probe meets NEMA 4X standards for environmental protection. This robust design ensures long-term reliability in continuous monitoring applications.

Technical Specifications Overview