Description

Technical Overview

The Bently Nevada 3300 XL 25 mm Proximity Probe (Model: 330851-04-000-030-10-01-00) is a high-precision, non-contact displacement sensor engineered for demanding industrial machinery protection and condition monitoring applications. As part of the trusted 3300 XL series, this probe delivers exceptional linearity, thermal stability, and electromagnetic interference (EMI) immunity—critical attributes for reliable operation in harsh environments such as power generation, oil & gas, and heavy manufacturing facilities. Its 25 mm diameter sensing face enables optimal balance between measurement range, resolution, and mechanical robustness, making it ideal for monitoring shaft vibration, axial position, and differential expansion on large rotating equipment including steam turbines, compressors, and generators.

Designed to integrate seamlessly with Bently Nevada 3300/3500 monitoring systems, the 330851-04-000-030-10-01-00 probe features a rugged stainless steel housing, high-temperature epoxy encapsulation, and a standard 3-conductor shielded cable terminated with a 7-pin MIL-C-26482 connector. It operates using eddy current technology, providing analog output proportional to target displacement with minimal phase shift—ensuring accurate dynamic response up to 10 kHz. The probe’s calibrated sensitivity (typically 7.87 V/mm or 200 mV/mil) and tight linearity tolerance (<±0.5% full scale) meet API 670 (4th Edition) and ISO 10816 standards for machinery protection systems.

Key Features

• High Accuracy & Repeatability: Factory-calibrated for ±0.5% linearity and <±0.1% hysteresis, ensuring consistent performance across operating temperature ranges (–30°C to +120°C).
• Rugged Industrial Construction: Hermetically sealed 316 stainless steel body with integral 3-meter cable; rated IP67 for dust and water resistance.
• System Compatibility: Fully interoperable with Bently Nevada 3300 XL 25 mm extension cables and 3300/3500 monitors—no field recalibration required.
• EMI/RFI Immunity: Engineered to operate reliably in electrically noisy environments common near VFDs, switchgear, and large motors.
• Long-Term Stability: Minimal drift over time (<0.1% FS/year), reducing maintenance frequency and lifecycle cost of ownership.

Specifications

• Part Number: 330851-04-000-030-10-01-00
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: 3300 XL 25 mm Non-Contact Proximity Probe
• Warranty: 24-month limited warranty from date of shipment, covering defects in materials and workmanship

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