Description

Technical Overview

The Bently Nevada 330101-25-44-10-02-05 is a high-precision, ruggedized proximity probe engineered for continuous vibration and position monitoring in critical rotating machinery applications. As part of the industry-standard 3300 XL 8 mm Proximity Probe System, this component delivers exceptional linearity, thermal stability, and electromagnetic interference (EMI) immunity—essential for reliable operation in demanding industrial environments such as power generation, oil & gas, petrochemical, and heavy manufacturing facilities.

Designed for integration with Bently Nevada 3300 XL monitoring systems—including the 3300 Rack, 3300 XL MMS, and 3500 Asset Protection Systems—the probe features a stainless steel housing, hermetically sealed construction, and optimized eddy-current sensing technology. Its 8 mm diameter sensing tip enables accurate measurement of shaft displacement, eccentricity, runout, and vibration across air gaps up to 2.0 mm, with minimal sensitivity to temperature drift or target material variations (e.g., 4140 steel, Inconel, or titanium).

Detailed Specifications

• Model Number: 330101-25-44-10-02-05
• Brand: Bently Nevada (a Baker Hughes company)
• Probe Type: 3300 XL 8 mm Non-Contact Proximity Probe
• Sensing Diameter: 8 mm
• Linear Range: 2.0 mm (0.080 in)
• Output Sensitivity: 7.87 V/mm (200 mV/mil) nominal
• Operating Temperature Range: –30 °C to +120 °C (–22 °F to +248 °F)
• Environmental Rating: IP67 (dust-tight and water-resistant)
• Cable Length: 5.0 m (16.4 ft), integral low-noise coaxial cable with Teflon® insulation
• Connector: 10-32 UNF threaded connector (standard 3300 XL interface)
• Target Material Compatibility: Optimized for ferromagnetic metals; calibration available per ASTM E2567

Operational Capabilities

The 330101-25-44-10-02-05 excels in real-time, non-intrusive condition monitoring of critical assets—including steam turbines, compressors, motors, and gearboxes. Its robust design supports long-term deployment in high-vibration, high-temperature, and corrosive atmospheres without signal degradation. When paired with compatible 3300 XL extension cables and proximitor modules, the probe delivers sub-micron resolution and maintains ±1% full-scale linearity over its entire operating range.

Key operational advantages include seamless compatibility with Bently Nevada’s Machinery Manager Software (MMS) for trend analysis and alarm configuration, support for redundant sensor setups per API 670 (4th Edition), and compliance with IEC 61508 SIL 2 for functional safety applications. The probe also facilitates predictive maintenance strategies by enabling early detection of bearing wear, misalignment, imbalance, and mechanical looseness—reducing unplanned downtime and extending asset life.

Technical FAQ

Q: Is the 330101-25-44-10-02-05 compatible with legacy 3300 series monitors?

A: Yes—this probe is fully backward-compatible with all 3300 series monitoring systems, including the original 3300, 3300 XL, and 3500 platforms. No firmware or hardware upgrades are required for integration.

Q: What calibration documentation is provided?

A: Each unit ships with a NIST-traceable calibration certificate, specifying actual sensitivity, linearity deviation, and thermal drift data at multiple temperatures. Custom calibration for specific target materials or gap ranges is available upon request.

Q: Can this probe be used in explosive atmospheres?

A: While the probe itself is not intrinsically safe, it may be deployed in Class I, Div 1 hazardous locations when used with an approved IS barrier (e.g., Bently Nevada 3300 IS Barrier Module) and installed per NEC Article 500 and IEC 60079 standards.

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