The Bently Nevada 330703-000-040-50-11-00 3300 XL 11 mm Proximity Probe is a high-precision, non-contact displacement sensor designed for monitoring critical rotating machinery. Part of the 3300 XL series, this probe provides reliable shaft vibration and position measurements, enabling real-time monitoring and protection of turbines, generators, and compressors. Its robust construction and precise ceramic tip ensure consistent performance in industrial environments with high vibration, electromagnetic interference, and temperature fluctuations. The probe’s extended length and standard 11 mm diameter make it compatible with a wide range of Bently Nevada 3300 XL Proximitor sensors for advanced condition monitoring and preventive maintenance applications.

Product Specifications

Applications

• Turbomachinery Monitoring – Measures shaft vibration and displacement in turbines, compressors, and generators.

• Rotating Equipment Protection – Provides real-time data to prevent machinery damage and reduce unplanned downtime.

• Process Industries – Monitors critical equipment in oil & gas, petrochemical, and power generation facilities.

• Condition-Based Maintenance – Enables early detection of rotor misalignment, imbalance, and mechanical wear.

• High-Speed Machinery – Supports continuous monitoring of fast-moving rotors for protective actions.

• Retrofit and Upgrade Projects – Standardized dimensions allow integration into existing 3300 XL systems.

Advantages

• High Accuracy – Non-contact displacement measurement with high resolution for reliable diagnostics.

• Durable Construction – Stainless steel housing and ceramic tip withstand harsh industrial environments.

• Extended Length – Provides flexibility for installation in deep or hard-to-reach machinery areas.

• Seamless System Integration – Fully compatible with 3300 XL Proximitor sensors and monitoring systems.

• Reliable Performance – Maintains measurement precision under vibration, shock, and EMI conditions.

• Predictive Maintenance Support – Facilitates condition monitoring to optimize equipment uptime.

Frequently Asked Questions (FAQ)

1. How does this probe measure shaft vibration?

   It uses eddy current technology to generate a voltage signal proportional to the shaft’s displacement without physical contact.

2. Is it compatible with all Bently Nevada 3300 XL systems?

   Yes, it is fully compatible with the 3300 XL Proximitor sensors and monitoring modules.

3. Can it operate reliably under high vibration conditions?

   Yes, it is rated up to 20 g in the 10–2000 Hz frequency range, suitable for industrial machinery.

4. What mounting options does this probe support?

   Standard mounting ensures precision alignment in a variety of rotating equipment applications.

5. Does it provide real-time monitoring data?

   Yes, it continuously outputs analog signals compatible with 3300 XL monitoring systems.

6. How is electromagnetic interference mitigated?

   Shielding and probe design minimize EMI effects, maintaining accurate measurements in electrically noisy environments.

7. Can it detect axial and radial displacement?

   The probe primarily measures radial displacement but can detect axial motion when configured with complementary sensors.

8. What is the typical sensitivity of the probe?

   The probe outputs approximately 5 mV per micrometer of shaft displacement.

9. Is it suitable for retrofitting existing machinery?

   Yes, the standard 11 mm diameter and 3300 XL compatibility make it ideal for upgrades.

10. How does it enhance machinery protection?

    By providing precise vibration and displacement data, it enables early fault detection, reducing potential damage and downtime.