Product Introduction
The Bently Nevada 330877-080-37-00 3300 XL 50 mm Proximity Probe is a high-accuracy non-contact sensing device designed for use within the 3300 XL 50 mm Proximity Transducer System. Developed for continuous monitoring of large rotating machinery, this probe delivers dependable measurements of shaft displacement, differential expansion, and rotor position in demanding industrial applications.
Designed with robust construction and advanced eddy current sensing technology, the probe offers exceptional durability, measurement stability, and long-term operational reliability. Its 8.0-meter total cable length provides added flexibility for installations requiring extended routing, making it an excellent choice for power generation, petrochemical processing, oil and gas, and other mission-critical industries.
Technical Specifications
| Item | Description |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330877-080-37-00 |
| Product Type | 3300 XL 50 mm Proximity Probe |
| Product Series | 3300 XL 50 mm Proximity Transducer System |
| Sensing Technology | Non-contact Eddy Current |
| Probe Diameter | 50 mm |
| Total Cable Length | 8.0 m (26.2 ft) |
| Measurement Range | 27.9 mm (1100 mils) Linear Range |
| Average Scale Factor | 394 mV/mm (10 mV/mil) |
| Probe Case Material | AISI 304 Stainless Steel |
| Continuous Operating Temperature | Up to +200°C |
| Intermittent Temperature | Up to +250°C |
| Approximate Dimensions | Probe Diameter: 50 mm; Total Cable Length: 8.0 m |
| Approximate Weight | Approx. 0.36 kg |
Industrial Applications
The 330877-080-37-00 proximity probe is engineered for critical machinery protection systems where high measurement accuracy and long-term reliability are essential.
Typical applications include:
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Steam turbine differential expansion monitoring
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Rotor axial position measurement
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Gas turbine condition monitoring
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Turbine Supervisory Instrumentation (TSI) systems
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Large generator protection
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Centrifugal compressor monitoring
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Industrial pump vibration analysis
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Petrochemical processing facilities
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Power generation plants
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Heavy rotating equipment diagnostics
Product Advantages
Built for demanding industrial environments, the 330877-080-37-00 combines precision sensing with rugged construction to support reliable machinery monitoring.
Key benefits include:
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High-resolution eddy current technology for accurate displacement measurement
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Extended 8-meter cable simplifies installation on large equipment
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Stable output for continuous machinery condition monitoring
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Excellent resistance to vibration, heat, and industrial contaminants
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Stainless steel probe housing provides outstanding mechanical durability
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Supports predictive maintenance and equipment health management
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Compatible with the complete 3300 XL 50 mm Proximity Transducer System
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Designed for long service life with minimal maintenance
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Ideal for high-temperature turbine applications
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Helps reduce unexpected downtime while improving plant reliability.
Technical FAQs
1. What is the primary purpose of the 330877-080-37-00 proximity probe?
It provides precise non-contact measurement of shaft displacement, rotor position, and differential expansion in critical rotating machinery.
2. Which transducer system is this probe compatible with?
It is designed specifically for the Bently Nevada 3300 XL 50 mm Proximity Transducer System.
3. What is the total cable length?
The probe is supplied with an 8.0-meter (26.2-foot) cable for flexible installation.
4. What measurement technology does the probe use?
It utilizes advanced non-contact eddy current sensing technology for accurate displacement monitoring.
5. What is the linear measurement range?
The probe provides a maximum linear measurement range of 27.9 mm (1100 mils).
6. What operating temperatures can the probe withstand?
It supports continuous operation up to +200°C and intermittent exposure up to +250°C.
7. Which industries commonly use this probe?
It is widely used in power generation, oil and gas, petrochemical processing, mining, and heavy industrial manufacturing.
8. Is the probe suitable for turbine supervisory systems?
Yes. It is commonly installed in TSI systems for differential expansion and shaft position measurements.
9. Can this probe help improve maintenance efficiency?
Yes. By delivering accurate real-time machinery condition data, it supports predictive maintenance strategies and helps reduce unplanned shutdowns.
10. Why should compatible system components be used together?
Using the matching probe, extension cable, and Proximitor® sensor ensures proper calibration, optimum measurement accuracy, and reliable long-term system performance.
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