Bently Nevada Model 330525-10 Vibration Monitoring Sensor Velomitor XA

Product Overview

The Bently Nevada 330525-10 Velomitor XA represents a significant advancement in seismic vibration sensing, specifically engineered for high-performance monitoring in hazardous or extreme industrial settings. Unlike standard sensors, this unit utilizes internal integration circuitry to convert raw acceleration data into a velocity output, providing maintenance teams with a direct measurement of vibration severity.

Constructed with a 316L stainless steel housing, the 330525-10 provides exceptional resistance to corrosive agents and moisture. When integrated with its specialized weatherproof connector and cable assembly, the system achieves IP-65 and NEMA 4X ratings. This makes the sensor particularly effective for cooling tower fans, pumps, and large rotating assemblies where traditional sensor enclosures would fail due to environmental exposure.

Engineering Characteristics and Performance

The core of the 330525-10 involves a piezo-electric sensing element that ensures high amplitude linearity across its entire operating range. It effectively filters out high-frequency noise through its high mounted resonant frequency, while maintaining a broad response spectrum suitable for most industrial machinery.

Furthermore, the sensor architecture emphasizes signal integrity. Case isolation prevents common grounding issues and ground loops that frequently plague industrial installations. The sensor supports extensive cabling distances, allowing the signal to travel up to 305 meters without significant degradation, which is essential for large-scale facility monitoring.

Technical Specifications

• Brand: Bently Nevada
• Model Number: 330525-10
• Transducer Type: Piezo-velocity (Velomitor XA)
• Frequency Response: 4.5 Hz to 2,000 Hz (Plus or minus 3.0 dB)
• Velocity Range: Up to 1,270 mm/s (50 in/s) peak
• Housing Material: 316L Stainless Steel
• Excitation Voltage: -22 VDC to -30 VDC
• Noise Floor: 0.004 mm/s (Broadband)
• Transverse Sensitivity: Less than 5% of sensitivity
• Environmental Protection: IP-65 and NEMA 4X (When properly installed)
• Resonant Frequency: Greater than 12 kHz
• Weight: 0.2 kg (Sensor only)

Industrial Applications

The 330525-10 is widely deployed in Turbo-machinery Stability Index (TSI) systems. Its rugged design specifically suits the following sectors:

• Power Generation (Steam and Gas Turbines)
• Oil and Gas (Refining and Pipeline compression)
• Water Treatment (Large-scale pumping stations)
• Mining and Minerals (Heavy-duty crushers and fans)