Description

Technical Overview

The Bently Nevada 330881-28-04-090-03-02 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 combines a rugged 3300 XL probe with an integrated signal conditioner housed in a single, compact stainless-steel assembly. This integration eliminates field wiring errors, reduces installation time, and enhances long-term reliability compared to traditional separate-probe-and-preamp configurations.

Operating on the eddy-current principle, the 330881-28-04-090-03-02 provides non-contact displacement measurements with sub-micron resolution and a linear range of ±90 mils (±2.29 mm), optimized for shaft vibration and axial position monitoring on turbines, compressors, and motors. Its advanced temperature compensation algorithm ensures consistent output across operating temperatures from –40°C to +125°C ambient, while its IP67-rated housing guarantees protection against dust, moisture, and incidental oil exposure. The transducer is fully compatible with Bently Nevada 3500/40M, 3500/45, and System 1™ asset monitoring platforms, supporting seamless integration into existing condition monitoring infrastructures.

Key Features

• Factory-Calibrated Integration: Probe and signal conditioner pre-assembled and calibrated as a single unit—ensures optimal performance and eliminates field calibration drift.
• Extended Temperature Stability: Maintains linearity and sensitivity across –40°C to +125°C ambient, ideal for harsh process environments.
• Robust Mechanical Design: Stainless-steel housing with IP67 ingress protection and high-shock/vibration resistance (per IEC 60068-2-27).
• Plug-and-Play Compatibility: Direct interface with Bently Nevada 3500 series monitors; supports standard 4–20 mA and voltage outputs (–10 to +10 VDC).
• Reduced Lifecycle Cost: Minimizes commissioning time, eliminates interconnect cabling failures, and extends mean time between failures (MTBF) by >40% versus legacy systems.

Specifications

• Part Number: 330881-28-04-090-03-02
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: PROXPAC XL Proximity Transducer (integrated probe + conditioner)
• Warranty: 24 months limited warranty from date of shipment, covering material and workmanship defects

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