Bently 330400-01-00 Acceleration Vibration Sensor

Technical Specifications

• Sensitivity: 100 mV/g ±5% (10.2 mV/m/s² ±5%)
• Frequency Response: 10 Hz to 15 kHz (±3 dB); 30 Hz to 10 kHz (±10 dB)
• Acceleration Range: 0 to 50 g peak (490 m/s²)
• Input Voltage: -24 VDC ±0.5 V
• Output Bias Voltage: -8.5 VDC ±0.5 V
• Operating Temperature Range: -55°C to +175°C (probe); -55°C to +120°C (electronics)
• Temperature Sensitivity: -11% to +3% of full scale over operating range
• Shock Resistance: 5000 g peak (49,050 m/s²)
• Relative Humidity: 100% condensing, non-immersed, hermetically sealed
• Cable Configuration: 3-core shielded 22 AWG (0.5 mm²) armored cable, with 3-pin connector on one end and terminal lugs on the other
• Mounting Thread: 1/4-28 UNF or M8 x 1 (optional)

Key Features

• High Precision: With a sensitivity of 100 mV/g and a wide frequency response range, it accurately captures vibration signals for detailed analysis.
• Robust Design: Constructed with a stainless steel housing and armored cable, it withstands harsh industrial environments, including high temperatures, humidity, and mechanical shocks.
• Wide Temperature Range: Operates reliably in extreme temperatures from -55°C to +175°C, ensuring consistent performance in various conditions.
• Easy Installation: Features a 3-pin connector for quick and secure cable attachment, and a 1/4-28 UNF mounting thread for flexible installation on machinery casings or bearing housings.
• Self-Diagnostic Capabilities: Built-in diagnostics monitor sensor health and detect issues such as cable breaks or excessive gaps, providing real-time feedback for maintenance.
• Compliance with Standards: Meets the requirements of the American Petroleum Institute (API) Standard 670 for acceleration sensors.

Functional Characteristics

• Real-Time Monitoring: Continuously measures casing vibrations and provides real-time data for machinery protection and condition assessment.
• Multi-Parameter Measurement: Capable of measuring both static (displacement) and dynamic (vibration) parameters simultaneously, offering a comprehensive view of machinery health.
• Fault Diagnosis Support: The high-frequency response and advanced signal processing capabilities enable the identification of specific fault frequencies, such as those caused by bearing defects or gear mesh issues.
• System Integration: Fully compatible with Bently Nevada’s monitoring systems, such as the 3500/42M monitor, 1900/65A vibration monitor, and 2300/20 dual-channel vibration monitor, facilitating seamless data acquisition and analysis.

Application Scenarios
The Bently 330400-01-00 acceleration vibration sensor is widely used in various industries for monitoring and protecting critical rotating machinery, including:

• Power Generation: Turbines, generators, and pumps in power plants require continuous vibration monitoring to prevent catastrophic failures and ensure reliable operation.
• Oil and Gas: Compressors, pumps, and pipelines in refineries and offshore platforms benefit from vibration monitoring to detect early signs of wear or imbalance, reducing downtime and maintenance costs.
• Chemical Processing: Large compressors, reactors, and distillation columns rely on vibration probes to maintain safe and efficient operation, preventing costly production interruptions.
• Metallurgy: Rolling mills, extruders, and blast furnaces use vibration monitoring to prevent unexpected downtime, extend equipment life, and improve product quality.
• Water Treatment: Pumps and agitators in water treatment facilities require vibration monitoring to ensure consistent performance, avoid costly repairs, and maintain water quality standards.
• Pulp and Paper: Paper machines, digesters, and pumps use vibration probes to optimize production processes, reduce energy consumption, and improve product quality.