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- Bently Nevada
- 330878-90-00
- 3300 XL 50 mm Front Sensor
- USA
- 9.0 meters
- 3 kg
- Xiamen, China
- New & In Stock
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada 330878-90-00 is a 3300 XL 50 mm front sensor designed for high-precision non-contact measurement of vibration and shaft displacement in large rotating machinery. It is part of the Bently Nevada 3300 XL proximity transducer system, widely used in industrial condition monitoring and machinery protection applications.
This model is specifically engineered for heavy-duty applications where larger measurement ranges and robust signal stability are required, making it suitable for critical rotating equipment in harsh industrial environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330878-90-00 |
| Product Series | 3300 XL |
| Sensor Type | 50 mm Front Sensor |
| Measurement Type | Shaft vibration and displacement |
| Total Cable Length | 9.0 meters |
| Shipping Weight | 3 kg |
| Sensing Technology | Eddy current proximity system |
| Output Signal | Conditioned displacement/vibration output |
| Installation Type | Industrial mounting / rack system |
| Operating Environment | Heavy-duty industrial applications |
| System Compatibility | Bently Nevada 3300 XL system |
What This Product Is
The 330878-90-00 front sensor is a key component in a non-contact proximity measurement system used for monitoring large rotating machinery. It works in combination with a proximity probe, extension cable, and monitoring module to measure shaft movement without physical contact.
Its primary function is to provide stable, high-accuracy signals for machinery protection and condition monitoring systems.
Function and Working Principle
The sensor operates using eddy current proximity technology. A high-frequency electromagnetic field is generated at the probe tip. When a conductive shaft passes through this field, eddy currents are induced on the surface.
Changes in the gap between the probe and shaft alter the electromagnetic field response, which is converted into an electrical signal proportional to mechanical movement.
It enables accurate measurement of:
- Shaft vibration
- Radial displacement
- Axial position
- Dynamic shaft behavior
The non-contact design ensures long-term stability and eliminates mechanical wear.
Role in Industrial Systems
The 330878-90-00 plays a critical role in machinery protection systems by serving as the signal conditioning interface within the 3300 XL architecture.
Its key functions include:
- Converting probe signals into usable monitoring data
- Supporting continuous vibration analysis
- Enabling early fault detection in rotating machinery
- Providing input for alarm and shutdown systems
- Supporting predictive maintenance strategies
Industrial Applications
This sensor is widely used in industries that operate large and high-value rotating equipment:
- Power generation plants
- Oil and gas facilities
- Petrochemical and chemical plants
- Heavy industrial compressor systems
- Large pump and hydraulic systems
- Marine propulsion and turbine systems
It is especially suitable for environments requiring high reliability and long-term continuous monitoring.
Compatible Components
The 330878-90-00 is typically used with:
- 3300 XL 50 mm proximity probes
- Matched extension cables (9.0 m configuration)
- Bently Nevada 3300 XL monitoring modules
- Machinery protection systems
- Signal processing and data acquisition units
- Industrial mounting hardware
All components must be used as a matched system to ensure accurate measurement performance.
Recommended Alternative Models
| Model | Sensor Size | Application |
|---|---|---|
| 330878-90-00 | 50 mm | Standard heavy-duty configuration |
| 330878-90-05 | 50 mm | Alternative long-distance setup |
| 330878-50-00 | 50 mm | Shorter installation version |
| 330850-90-05 | 25 mm | Medium machinery applications |
| 330850-90-CN | 25 mm | Regional 25 mm variant |
Key Advantages
- High-precision non-contact measurement
- Designed for large rotating machinery
- Stable performance in harsh environments
- Fully compatible with 3300 XL system architecture
- Supports continuous condition monitoring
- Reliable signal conditioning for protection systems
Technical FAQs
What is the main function of this sensor?
It measures vibration and shaft displacement using non-contact eddy current technology.
Is it used in a complete system?
Yes, it is part of the Bently Nevada 3300 XL proximity measurement system.
What equipment is it used for?
It is used on turbines, compressors, large pumps, and heavy rotating machinery.
Is it suitable for continuous operation?
Yes, it is designed for long-term industrial monitoring.
Conclusion
The Bently Nevada 330878-90-00 3300 XL 50 mm Front Sensor is a robust and high-performance industrial monitoring component designed for large rotating machinery. With its non-contact measurement technology and integration into the 3300 XL system, it provides reliable vibration and displacement data for machinery protection, predictive maintenance, and operational safety in demanding industrial environments.