The Bently Nevada 330703-020-100-90-02-00 3300 XL 11 mm Proximity Probe is a high-performance non-contact displacement sensor designed to provide accurate and stable measurements of shaft vibration and rotor position in demanding industrial environments. As a member of the renowned 3300 XL series, this probe offers superior linearity, excellent thermal stability, and robust mechanical construction. Its design ensures long-term reliability for critical rotating equipment such as turbines, compressors, pumps, and motors. With exceptional resistance to electromagnetic interference and harsh operating conditions, it supports continuous monitoring and predictive maintenance strategies to maximize equipment uptime and safety.

Product Specifications

Applications

• Turbomachinery Monitoring – Delivers real-time shaft vibration and position data for turbines and high-speed compressors.

• Power Generation Equipment – Ensures reliable operation of steam and gas turbines through continuous monitoring.

• Petrochemical Processing – Provides critical measurements for compressors, pumps, and rotating reactors.

• Industrial Motors and Pumps – Detects imbalance, misalignment, and bearing wear before failure occurs.

• Heavy-Duty Rotating Machinery – Suitable for high-speed industrial fans and blowers operating in harsh environments.

• System Integration – Designed for seamless retrofit or integration into existing Bently Nevada 3300 XL systems.

Advantages

• High Accuracy and Stability – Maintains ±1 % linearity and precise displacement readings across the entire measurement range.

• Robust Construction – Stainless-steel housing and ceramic tip resist corrosion, vibration, and thermal stress.

• Excellent EMI Protection – Advanced shielding provides reliable performance in electrically noisy environments.

• Predictive Maintenance Ready – Enables early detection of vibration anomalies to reduce unplanned downtime.

• Long-Term Reliability – Proven 3300 XL design ensures consistent operation in continuous 24/7 applications.

• Seamless Compatibility – Fully calibrated for direct connection with 3300 XL Proximitor® sensors without additional adjustments.

Frequently Asked Questions (FAQ)

1. What sensing technology does this probe utilize?

   It uses an eddy-current principle to measure the distance between the probe tip and the rotating shaft.

2. Is it pre-calibrated for the 3300 XL Proximitor®?

   Yes, it is factory-calibrated for direct connection to 3300 XL Proximitor® sensors.

3. What is the nominal output sensitivity?

   The probe provides approximately 5 mV/µm sensitivity for accurate displacement monitoring.

4. Can this probe handle continuous 24/7 monitoring?

   Yes, it is designed for permanent installation in critical machinery requiring constant surveillance.

5. How does it ensure immunity to electromagnetic interference?

   Multi-layer shielding and precision grounding minimize EMI for clean signal output.

6. What is the recommended target material for best accuracy?

   Conductive ferromagnetic materials, such as steel, ensure optimal measurement precision.

7. Does the probe require field calibration after installation?

   No, only a basic system verification is typically needed after installation.

8. What is the effective frequency response range?

   It provides accurate readings from DC to 10 kHz, suitable for dynamic vibration measurement.

9. Can it measure both radial and axial displacement?

   Yes, the installation orientation determines whether radial or axial shaft movement is captured.

10. How does it perform in high-vibration conditions?

    It withstands up to 20 g vibration within the 10–2000 Hz range without performance degradation.