Bently Nevada 330425-01-00 Accelerometer 1/4-28 UNF integral stud Acceleration Transducer

Overview
The Bently Nevada 330425-01-00 is a rugged, 3-pin industrial accelerometer for continuous casing-acceleration monitoring on the most critical rotating and reciprocating machinery. Ideal for gear-mesh diagnostics, pump cavitation detection and other high-frequency fault signatures, this sensor delivers the reliability and accuracy demanded by API-compliant condition-monitoring programs.

Key Specifications
• Measurement Range: 0–75 g peak (0–735 m/s²)
• Sensitivity: 25 mV/g (2.5 mV/m/s²) ±5 %
• Frequency Response: 10 Hz – 15 kHz (±3 dB); usable to 30 Hz – 10 kHz (±10 %)
• Broadband Noise Floor: ≤0.004 g rms (10 Hz – 15 kHz)
• Mounted Resonant Frequency: >27 kHz
• Power Supply: –24 Vdc, 2 mA (constant-current)
• Output Bias: –8.5 Vdc ±0.5 Vdc
• Maximum Cable Length: 305 m (1 000 ft) without signal degradation

Harsh-Environment Design
• Case Material: 316 L stainless steel, hermetically sealed, IP 68 equivalent
• Operating Temperature: –55 °C to +121 °C (–67 °F to +250 °F)
• Shock Survivability: 5 000 g peak
• Hazardous-Area Approvals: CSA (Class I Div 1 & 2), ATEX/IECEx Ex ia IIC T4 Ga

Installation & Compatibility
The 330425-01-00 features a 3-pin MIL-C-5015 receptacle and mounts on any 32 µinch rms surface with the supplied ¼-28 UNF stud. It integrates seamlessly with Bently Nevada 3500/42, 1900/65A and legacy 3300-series monitors, as well as third-party protection systems that accept 100 Ω source impedance accelerometers.

Typical Applications
• Gearbox high-frequency vibration trending
• Centrifugal and reciprocating compressor monitoring
• Pump cavitation and bearing-fault detection
• Turbine supervisory systems requiring API 670 performance levels
Ordering Information
Part Number: 330425-01-00
Includes: Sensor, calibration certificate, installation drawing 167536

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