



Industrial Insight — Long-Reach Precision for Critical Machinery Monitoring
The Bently Nevada 330104-00-25-50-02-05 3300 XL 8 mm Eddy-Current Proximity Probe is a premium non-contact sensor engineered to deliver accurate and continuous measurements of shaft vibration, radial displacement, and shaft position in high-value rotating equipment.
As part of the industry-proven 3300 XL machinery protection platform, this configuration combines an extended 250 mm probe body, a 5.0 m cable assembly, and internationally recognized certifications, making it suitable for installations that demand both installation flexibility and dependable long-term performance.
Designed for modern predictive maintenance strategies, this probe helps operators improve equipment reliability, reduce unexpected shutdowns, and optimize asset lifecycle management.
Technical Specifications — Engineering Configuration & Mechanical Data
| Specification | Details |
|---|
| Product Type | 3300 XL 8 mm Eddy-Current Proximity Probe |
| Model Number | 330104-00-25-50-02-05 |
| Probe Diameter | 8 mm |
| Measurement Technology | Eddy-current non-contact sensing |
| Thread Type | M10 × 1 metric thread |
| Unthreaded Length | 0 mm |
| Overall Case Length | 250 mm |
| Cable Length | 5.0 m |
| Connector Type | Miniature coaxial ClickLoc® connector |
| Cable Type | 75 Ω industrial coaxial cable |
| Linear Measurement Range | 2.0 mm (80 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) ±5% |
| Frequency Response | 0 to 10 kHz |
| Operating Temperature | -52°C to +177°C |
| Housing Material | Stainless steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Certification Option | CSA, ATEX, IECEx |
| System Compatibility | Bently Nevada 3300 XL transducer systems |
| Approximate Dimensions | 25 × 3 × 3 cm |
| Approximate Weight | 0.58 kg |
Applications — Protecting High-Value Rotating Equipment
This probe is widely used in industrial machinery protection systems, including:
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Steam turbine vibration monitoring
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Gas turbine shaft displacement measurement
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Centrifugal compressor protection
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Large industrial motor diagnostics
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Pump performance monitoring
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Blower and fan condition analysis
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Petrochemical process equipment
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Oil & gas production facilities
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Heavy manufacturing machinery
Technical FAQs — Frequently Asked Questions
1. What is the primary function of this probe?
It continuously measures shaft vibration, displacement, and shaft position without physical contact.
2. What sensing principle does it use?
It uses eddy-current technology for high-accuracy non-contact measurements.
3. What does the "25" configuration code represent?
It indicates a 250 mm overall probe body length.
4. What does the "50" code indicate?
It specifies a 5.0 m integrated cable length.
5. What does the "02" configuration represent?
It indicates the standard miniature coaxial ClickLoc® connector option.
6. What does the "05" suffix indicate?
It represents internationally certified approvals, including CSA, ATEX, and IECEx configurations.
7. Is this probe suitable for hazardous industrial environments?
Yes. This certified version is suitable for installations that require approved industrial equipment.
8. Which systems is it compatible with?
It is designed to operate with Bently Nevada 3300 XL extension cables and Proximitor® sensors.
9. Which industries commonly use this product?
Power generation, oil & gas, petrochemical, marine, mining, and heavy manufacturing industries.
10. Why is non-contact sensing important?
It eliminates mechanical wear while maintaining stable measurement accuracy over long operating periods.