Bently Nevada 330704-00-050-10-01-05 3300 XL 11 mm Proximity Probes

The Bently Nevada 330704-00-050-10-01-05 3300 XL 11 mm Proximity Probe is a high-precision, non-contact displacement sensor designed for continuous monitoring of shaft vibration and rotor position in critical rotating machinery. As part of the renowned 3300 XL series, it combines advanced eddy-current sensing technology with a rugged mechanical design to deliver exceptional measurement accuracy, linearity, and stability in harsh industrial environments. Its stainless-steel construction and robust insulation ensure long-term reliability in power generation, oil and gas, and heavy process industries. Seamless integration with Bently Nevada 3300 XL Proximitor® sensors allows predictive maintenance systems to detect early signs of imbalance, misalignment, or bearing wear, thereby preventing costly downtime.

Product Specifications

Applications

• Turbomachinery Monitoring – Continuous vibration and position tracking for steam, gas, and hydro turbines.

• Compressors and Pumps – Early detection of bearing wear or rotor imbalance in critical process machinery.

• Generators and High-Speed Motors – Reliable shaft displacement measurement for power generation systems.

• Petrochemical and Refinery Equipment – Robust operation in high-temperature and high-vibration environments.

• Industrial Fans and Blowers – Precise monitoring of radial and axial movement to prevent mechanical failures.

• Condition Monitoring Systems – Ideal for predictive maintenance programs requiring uninterrupted data.

Advantages

• Exceptional Accuracy – Maintains ±1 % linearity across the 11 mm measurement range.

• Durable Design – Stainless-steel housing and ceramic probe tip resist corrosion and thermal stress.

• Excellent EMI Protection – Multi-layer shielding ensures stable signals in electrically noisy environments.

• Maintenance Efficiency – Supports early fault detection to minimize unplanned downtime.

• Proven 3300 XL Technology – Trusted by industries worldwide for continuous 24/7 operation.

• Seamless System Integration – Pre-calibrated for direct connection with 3300 XL Proximitor® sensors.

Frequently Asked Questions (FAQ)

1. What measurement principle does this probe use?

   It uses eddy-current sensing to measure shaft displacement without physical contact.

2. How is linearity maintained over the 11 mm range?

   Internal calibration and temperature-compensated materials ensure stable, linear output.

3. Is it compatible with Bently Nevada 3300 XL Proximitor®?

   Yes, it connects directly for precise displacement signals.

4. How does it resist electromagnetic interference (EMI)?

   Shielded housing and proper grounding reduce susceptibility to electrical noise.

5. Can it capture fast vibration transients?

   Yes, its frequency response up to 10 kHz allows detection of rapid shaft movements.

6. What are the mounting requirements?

   Mount on a rigid, flat surface with correct alignment and the recommended probe gap.

7. Which shaft materials are supported?

   Conductive ferromagnetic shafts are ideal; non-conductive coatings should be avoided.

8. How does temperature variation affect the probe?

   Low-expansion materials and internal compensation minimize temperature-induced errors.

9. What maintenance is recommended?

   Check connectors, verify signal, and inspect probe alignment periodically.

10. How does the probe handle mechanical vibration and shock?

    Robust stainless steel housing and ceramic tip withstand high vibration and shocks.