



Designed for Extended-Distance Machinery Monitoring
The Bently Nevada 330103-00-22-50-12-RU 3300 XL 8 mm Proximity Probe is a premium non-contact eddy current sensor developed for high-accuracy measurement of shaft vibration, axial position, and radial displacement in critical rotating equipment. As part of the proven 3300 XL 8 mm Proximity Transducer System, this probe provides outstanding measurement stability, superior temperature performance, and long-term reliability for demanding industrial applications.
This configuration features an M10 × 1 metric threaded probe, 220 mm overall case length, an extended 5.0-meter FluidLoc® cable, Miniature Coaxial ClickLoc® connector, and the RU regional approval option. Its extended cable length allows greater installation flexibility while the FluidLoc® design helps prevent fluid migration through the cable, making it well suited for harsh environments such as power generation, oil & gas, petrochemical, and heavy process industries.
Product Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model | 330103-00-22-50-12-RU |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Series | 3300 XL |
| Probe Diameter | 8 mm |
| Thread Type | M10 × 1 Metric |
| Unthreaded Length | 0 mm |
| Overall Case Length | 220 mm |
| Total Cable Length | 5.0 m (16.4 ft) |
| Connector Type | Miniature Coaxial ClickLoc® Connector |
| Cable Type | FluidLoc® Cable |
| Approval Option | RU Regional Approval |
| Probe Housing Material | AISI 303/304 Stainless Steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Linear Range | 2.0 mm (80 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Operating Temperature | -52°C to +177°C |
| Storage Temperature | -52°C to +177°C |
| Dimensions | Probe Case Length: 220 mm; Cable Length: 5.0 m |
| Approximate Weight | Approximately 0.35 kg |
Typical Applications
The 330103-00-22-50-12-RU is engineered for continuous monitoring of critical rotating machinery where dependable vibration data is essential for maximizing equipment availability.
Typical applications include:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Industrial pumps
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High-speed electric motors
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Gearboxes
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Power generation facilities
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Offshore oil and gas platforms
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Petrochemical processing plants
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LNG production facilities
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Chemical manufacturing
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Mining and mineral processing systems
Product Advantages
Designed to support predictive maintenance strategies, this proximity probe combines proven sensing technology with rugged industrial construction.
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High-precision non-contact vibration and displacement measurement
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Extended 5.0-meter cable for flexible installation layouts
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FluidLoc® cable technology helps prevent fluid migration
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Rugged stainless-steel housing for harsh operating conditions
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Stable performance across wide temperature ranges
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Secure ClickLoc® connector for reliable signal transmission
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Fully compatible with 3300 XL extension cables and Proximitor® sensors
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Supports continuous online machinery protection
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Helps reduce unexpected downtime and maintenance costs
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Trusted solution for mission-critical rotating equipment
Technical FAQs
1. What is the primary function of this proximity probe?
It provides continuous, non-contact measurement of shaft vibration, axial position, and displacement to support machinery protection and predictive maintenance.
2. What is the probe case length?
This model features a 220 mm overall probe case length.
3. What cable length is supplied?
The probe includes a 5.0-meter (16.4-foot) integrated FluidLoc® cable for installations requiring longer cable routing.
4. What is the benefit of the FluidLoc® cable?
FluidLoc® technology helps minimize oil and moisture migration through the cable assembly, improving long-term system reliability in harsh industrial environments.
5. Which connector does this model use?
It is equipped with a Miniature Coaxial ClickLoc® connector, ensuring secure electrical connections and dependable signal integrity.
6. What does the RU approval option indicate?
The RU suffix identifies a configuration supplied with regional approval requirements while also supporting CSA, ATEX, and IECEx certified applications according to the ordering configuration.
7. Which materials are used in the probe construction?
The probe housing is manufactured from AISI 303/304 stainless steel, while the sensing tip uses durable Polyphenylene Sulfide (PPS) for long service life.
8. Which monitoring systems is this probe compatible with?
It is fully compatible with 3300 XL extension cables, 3300 XL Proximitor® Sensors, and Bently Nevada machinery monitoring platforms including the 3500 Series.
9. What operating temperature range does it support?
The probe is designed to operate reliably from -52°C to +177°C, making it suitable for demanding industrial environments.
10. Why choose the 3300 XL 8 mm Series?
The 3300 XL Series is recognized worldwide for its measurement accuracy, API 670 compliance, interchangeable components, robust construction, and dependable long-term performance in critical machinery monitoring.