Description

Technical Overview

The Bently Nevada 330525-01 Velomitor XA Piezo-Velocity Sensor is a high-performance, industrial-grade vibration sensing solution engineered for continuous machinery health monitoring in demanding rotating equipment applications. Designed for integration into predictive maintenance and condition monitoring systems, this sensor delivers accurate, low-noise velocity measurements across a broad frequency range (4.5 Hz to 1 kHz), making it ideal for detecting early-stage mechanical faults—including imbalance, misalignment, bearing degradation, and resonance issues—in turbines, compressors, motors, pumps, and gearboxes.

Unlike traditional accelerometers requiring external signal conditioning, the 330525-01 features built-in electronics that provide a robust, low-impedance voltage output proportional to vibration velocity (in mm/s or in/s). Its piezoelectric sensing element ensures exceptional long-term stability, minimal zero drift, and immunity to electromagnetic interference (EMI)—a critical advantage in electrically noisy plant environments. The sensor’s rugged stainless steel housing, IP67-rated sealing, and integrated 10-32 UNF mounting thread enable reliable operation under extreme temperatures (–65°F to +250°F / –54°C to +121°C), high humidity, and exposure to oil, dust, and chemical contaminants.

Key Features

• True velocity output: Delivers industry-standard 100 mV/(in/s) sensitivity with linear response—no external integrator required
• Ruggedized industrial design: Hermetically sealed stainless steel housing with corrosion-resistant finish and integral mounting thread
• Wide operational envelope: Stable performance from –54°C to +121°C and up to 10 g RMS vibration levels
• EMI/RFI immunity: Engineered for reliable operation in high-noise electrical environments common in power generation and process plants
• Plug-and-play compatibility: Direct interface with Bently Nevada 3500/40M, System 1, and most third-party vibration monitoring systems using standard 2-wire loop-powered wiring

Specifications

• Part Number: 330525-01
• Manufacturer: Bently Nevada (a Baker Hughes business)
• Type: Velomitor XA Piezo-Velocity Sensor
• Warranty: 3-year limited warranty against defects in materials and workmanship

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