Description

Technical Overview

The Bently Nevada 330904-00-25-50-02-00 is a high-precision 3300 NSv Proximity Probe engineered for mission-critical machinery protection and condition monitoring in demanding industrial environments. As part of the industry-leading 3300 NSv family, this probe delivers exceptional linearity, thermal stability, and electromagnetic interference (EMI) immunity—ensuring reliable shaft displacement, vibration, and position measurements across turbines, compressors, motors, and generators. Its robust stainless-steel construction and optimized coil design support long-term accuracy under extreme temperatures, pressure fluctuations, and mechanical stress.

Designed for seamless integration with Bently Nevada 3300 XL and 3300 NSv monitoring systems, the 330904-00-25-50-02-00 features a 5.0 mm sensing range and a nominal 25 mm probe diameter, making it ideal for medium-to-large rotating equipment applications where space constraints and measurement fidelity are equally critical. The probe utilizes advanced eddy-current technology with factory-calibrated sensitivity (typically 7.87 V/mm or 200 mV/mil), enabling precise detection of sub-micron shaft movements. Its integrated cable assembly ensures consistent signal integrity over extended distances, minimizing noise-induced measurement errors common in electrically noisy plant settings.

Key Features

• High-Accuracy Sensing: Factory-calibrated for ±1% linearity across full 5.0 mm range, ensuring repeatable, traceable measurements compliant with API 670 and ISO 10816 standards.
• Ruggedized Industrial Design: Hermetically sealed stainless-steel housing with high-temp epoxy encapsulation (rated to 125°C continuous operation) for corrosion resistance and mechanical durability.
• EMI/RFI Immunity: Optimized coil geometry and shielded coaxial cable reduce susceptibility to electrical noise—critical in VFD-rich environments and power generation facilities.
• Plug-and-Play Compatibility: Fully interoperable with Bently Nevada 3300 NSv monitors, relays, and data acquisition systems without field recalibration.
• Long-Term Stability: Minimal zero-shift (<0.5% FS/year) and temperature coefficient of <0.05%/°C ensure consistent performance across seasonal and operational thermal cycles.

Specifications

• Part Number: 330904-00-25-50-02-00
• Manufacturer: Bently Nevada (a Baker Hughes company)
• Type: 3300 NSv Proximity Probe — Non-contact Eddy-Current Sensor
• Warranty: 24-month limited warranty covering material defects and workmanship under normal industrial use

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