



High‑Precision Industrial Monitoring Sensor
The Bently Nevada 330102‑00‑25‑10‑02‑05 3300 XL 8 mm Proximity Probe is engineered to provide accurate, non‑contact vibration and position sensing for critical rotating machinery. As part of the 3300 XL series, this probe delivers dependable performance in harsh industrial environments where early detection of mechanical issues is essential for operational safety and costly downtime reduction.
With a robust design and proven sensing performance, this proximity probe supports condition‑based monitoring programs across a wide range of heavy‑duty applications. Its compact size, durability, and broad temperature capability make it a trusted choice for plant engineers and reliability professionals alike.
Technical Specifications
| Parameter | Specification |
|---|
| Probe Type | 3300 XL 8 mm Proximity Probe |
| Probe Diameter | 8 mm |
| Thread Type | 3/8‑24 UNF |
| Case Length | 2.5 inches |
| Total Cable Length | 1.0 meter |
| Connector Type | Miniature ClickLoc Coaxial |
| Cable Type | Standard |
| Output Signal | Voltage Proportional to Gap |
| Frequency Response | DC to 10 kHz |
| Operating Temperature | ‑51°C to +177°C |
| Sensitivity | Approx. 7.87 V/mm |
| Hazardous Area Approval | CSA / ATEX / IECEx |
Recommended Industrial Uses
This proximity probe is ideal for continuous monitoring of key assets, including:
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Steam and gas turbines
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Centrifugal and axial compressors
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Industrial pumps and motors
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Gearboxes and bearing systems
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Fluid‑film machinery
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Speed reference (Keyphasor) sensing
Its non‑contact eddy current design ensures accurate, long‑term vibration and displacement monitoring without mechanical wear.
Core Advantages
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High Measurement Accuracy for early fault indication
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Wide Frequency Response suitable for static and dynamic signals
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Durable Industrial Construction for harsh plant conditions
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Compact 8 mm Sensing Tip for tight installation spaces
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Hazardous‑Area Certified for safe operation
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Broad Temperature Range enables versatile deployment
This probe enhances machine health diagnostics while supporting predictive maintenance strategies that optimize uptime and reliability.
Technical FAQs
1. What does this proximity probe measure?
It detects shaft vibration and displacement using non‑contact eddy current sensing.
2. Is this probe compatible with 3300 XL systems?
Yes, it’s designed for use within 3300 XL monitoring systems.
3. Can it handle dynamic vibration signals?
Yes, with a frequency response up to 10 kHz.
4. Does it require shaft contact?
No, the sensing element operates without physical contact.
5. What is the cable length?
This model includes a 1.0 meter integrated cable.
6. Is it rated for high temperatures?
Yes, it operates between ‑51°C and +177°C.
7. What type of connector does it use?
It uses a Miniature ClickLoc coaxial connector for reliable signal integrity.
8. Is it suitable for hazardous areas?
Yes, it carries certifications for industrial hazardous environments.
9. What industries commonly use this probe?
Power generation, petrochemical, and heavy manufacturing plants.
10. How compact is the probe assembly?
Its overall dimensions are approximately 150 × 150 × 110 mm, weighing roughly 0.29 kg.