Bently Nevada 330400-02-05 Acceleration Transducer for Predictive Maintenance

This Bently Nevada acceleration transducer delivers high-fidelity vibration measurements for rotating machinery. It converts mechanical motion into a proportional electrical signal for diagnostic systems. Engineers can deploy this sensor for turbine, compressor, and pump monitoring applications. Its piezoelectric design ensures stable performance across wide operating conditions. The transducer integrates seamlessly with Bently Nevada 3500 and 3700 monitoring platforms.

Physical Dimensions and Housing Design

The transducer measures 3.0 inches in length and 1.5 inches in diameter. Its hermetically sealed stainless steel housing weighs approximately 6.0 ounces. A 2-pin connector provides all power and signal interface connections. The unit features a 1/4-28 UNF mounting stud for secure installation. This design ensures proper mechanical coupling for accurate vibration data acquisition.

Sensitivity and Dynamic Measurement Range

The sensor delivers a nominal sensitivity of 100 mV/g for standard vibration monitoring. It accurately measures acceleration from 0.1 g to 500 g peak. The unit maintains exceptional linearity across its entire dynamic range. This sensitivity suits both low-amplitude and high-impact vibration events. The transducer provides reliable data for comprehensive machine health assessment.

Frequency Response and Performance Characteristics

The accelerometer offers a frequency response from 0.2 Hz to 15 kHz. This bandwidth captures both slow-speed and high-frequency machine vibrations effectively. The unit exhibits a resonant frequency of 30 kHz for extended measurement capability. This performance supports analysis of gear meshing and bearing defects. The transducer maintains phase response integrity for advanced diagnostic techniques.

Electrical Interface and Cable Compatibility

The unit features a 2-pin connector for reliable signal transmission. This connector mates with standard Bently Nevada extension cables securely. The sensor includes internal electromagnetic shielding for noise immunity. This shielding prevents interference from nearby electrical equipment and variable frequency drives. The connector design ensures vibration-resistant operation in demanding machine environments.

Excitation Voltage and Output Characteristics

The sensor operates on a 24 VDC excitation voltage from the monitor. It draws a constant current of 2 mA for internal electronics operation. The unit provides a low-impedance voltage output for noise-resistant transmission. This output drives cable lengths up to 300 meters without signal degradation. The transducer includes reverse polarity protection for safe field installation.

Temperature Range and Environmental Ratings

The accelerometer operates reliably from -55 to 125 degrees Celsius. Its welded stainless steel housing provides complete hermetic sealing. The unit withstands humidity up to 100% for marine and outdoor applications. The sensor meets IP68 standards for dust and water immersion protection. This robust construction ensures long-term reliability in harsh industrial settings.

Technical Specifications Overview