Description

Technical Overview

The Bently Nevada 330881-28-04-045-03-02 PROXPAC XL Proximity Transducer is a high-performance, factory-integrated proximity measurement solution engineered for mission-critical rotating machinery monitoring in power generation, oil & gas, and heavy industrial applications. Designed to deliver exceptional stability and accuracy under extreme environmental conditions—including wide temperature fluctuations, high vibration, and electromagnetic interference—the transducer forms the sensing element of Bently Nevada’s industry-leading 3300 XL 25 mm and 50 mm proximity probe systems. Its robust construction features a hermetically sealed, stainless steel housing and advanced signal conditioning electronics optimized for long-term reliability and minimal drift over time.

Unlike legacy proximity transducers, the PROXPAC XL series integrates digital calibration data directly into the transducer head, eliminating manual scaling errors and ensuring consistent system performance across installations. It operates with Bently Nevada’s 3300 XL monitoring systems and is fully compatible with Asset Management Systems (AMS) for predictive maintenance workflows. The 330881-28-04-045-03-02 model specifically supports a 4.5 mm linear range (0–4.5 mm), making it ideal for precise shaft displacement, differential expansion, and thrust position measurements where sub-micron resolution is required. Its low-noise design and wide dynamic response (DC to 10 kHz) enable accurate capture of both steady-state and transient mechanical events—critical for early fault detection and operational risk mitigation.

Key Features

• Factory-Calibrated & Digitally Tracked: Embedded calibration coefficients ensure plug-and-play compatibility and eliminate field recalibration needs.
• Extended Environmental Resilience: Rated for continuous operation from –40 °C to +125 °C and IP67 ingress protection for harsh plant-floor environments.
• High-Fidelity Signal Integrity: Low-noise analog output (–2 to –18 V DC) with <1.5% linearity error and <0.1% hysteresis for repeatable, traceable measurements.
• Integrated Mechanical Design: Precision-machined 28 mm diameter stainless steel body with 04-thread (M10 × 1.0) mounting and integrated 3-meter shielded cable (03-02 variant).
• System-Level Interoperability: Fully compliant with API 670 (4th Edition) and certified for use in SIL 2 safety-related applications when deployed per approved configurations.

Specifications

• Part Number: 330881-28-04-045-03-02
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: PROXPAC XL Proximity Transducer (4.5 mm range, M10 × 1.0 thread, 3 m integral cable)
• Warranty: 24-month limited warranty covering material and workmanship defects under normal industrial use

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