Product Overview
Reliable Vibration Measurement for Harsh Operating Conditions
The 350900-394 integrates advanced piezoelectric sensing technology to simultaneously monitor both vibration velocity and vibration acceleration. This dual-output capability allows maintenance teams to evaluate overall machine condition while also identifying high-frequency vibration events associated with bearing defects, imbalance, looseness, or mechanical resonance.
Its high-temperature design enables installation closer to machinery operating in elevated ambient temperatures, reducing installation complexity while maintaining accurate signal transmission.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 350900-394 |
| Product Type | High Temperature Velocity and Acceleration Sensor |
| Measurement Technology | Piezoelectric Vibration Sensor |
| Output Signals | Velocity and Acceleration |
| Frequency Response | Optimized for industrial vibration monitoring |
| Operating Temperature | High-temperature industrial environment |
| Housing Material | Stainless Steel |
| Mounting Style | Stud Mount |
| Electrical Connection | Industrial Shielded Cable Connection |
| Protection Rating | Industrial Heavy-Duty Construction |
| Compatible Systems | Bently Nevada Machinery Monitoring Systems |
| Typical Applications | Turbines, Compressors, Pumps, Motors, Gearboxes |
| Approximate Dimensions | 72 × 32 mm |
| Approximate Weight | 0.42 kg |
Typical Applications
The 350900-394 is widely used in industrial facilities where reliable vibration monitoring is required under elevated operating temperatures.
| Industry | Typical Equipment |
|---|
| Power Generation | Steam turbines, gas turbines, generators |
| Oil & Gas | Compressors, pumps, turbo expanders |
| Petrochemical | Process compressors and rotating machinery |
| Mining | Crushers, mills, heavy-duty motors |
| Manufacturing | Gearboxes, fans, conveyors, production equipment |
| Pulp & Paper | Refiners, motors, vacuum pumps |
Common monitoring applications include:
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Overall vibration monitoring
-
Bearing condition analysis
-
Velocity measurement
-
High-frequency acceleration monitoring
-
Predictive maintenance programs
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Continuous machinery protection
Product Benefits
Dual Measurement Capability
By providing both velocity and acceleration outputs, the sensor supports a broader range of machinery diagnostics without requiring multiple sensing devices.
High-Temperature Operation
Designed for elevated-temperature environments, the sensor maintains reliable measurement performance where standard industrial vibration sensors may experience reduced operating life.
Rugged Industrial Construction
The stainless-steel housing offers excellent resistance to vibration, corrosion, oil contamination, and demanding industrial operating conditions, helping reduce maintenance requirements.
Stable Signal Performance
Advanced piezoelectric sensing technology provides repeatable vibration measurements across a wide range of machine operating conditions, supporting accurate trend analysis and early fault detection.
Easy Integration
The 350900-394 is compatible with Bently Nevada machinery monitoring systems, allowing seamless integration into existing condition monitoring and predictive maintenance installations.
Technical FAQs
1. What is the Bently Nevada 350900-394 used for?
It is used to monitor machine vibration by measuring both vibration velocity and acceleration on rotating equipment.
2. Why does the sensor provide two output types?
Velocity measurement is effective for evaluating overall machine condition, while acceleration measurement helps detect higher-frequency faults such as bearing damage and mechanical impacts.
3. Is the sensor suitable for high-temperature environments?
Yes. It is specifically designed for continuous operation in elevated-temperature industrial applications.
4. What industries commonly use this sensor?
It is widely used in power generation, oil and gas, petrochemical processing, mining, manufacturing, and other industries operating critical rotating machinery.
5. What machinery can be monitored?
Typical equipment includes turbines, compressors, pumps, motors, gearboxes, fans, and generators.
6. What sensing technology does this model use?
The sensor utilizes piezoelectric technology for accurate vibration measurement.
7. Can the sensor support predictive maintenance?
Yes. It provides reliable vibration data that enables early fault detection and condition-based maintenance planning.
8. Is the housing designed for industrial environments?
Yes. The stainless-steel construction provides durability and resistance to harsh industrial operating conditions.
9. Can it be integrated into existing monitoring systems?
Yes. The sensor is designed for compatibility with Bently Nevada machinery monitoring solutions and vibration monitoring infrastructure.
10. What are the main advantages of dual-output monitoring?
Dual outputs allow maintenance engineers to evaluate both low-frequency machine condition and high-frequency vibration events using a single sensor, improving diagnostic capability while simplifying installation.
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