The Bently Nevada 330196-05-30-50-05 3300 XL 8 mm ETR Reverse Mount Probe is a high-performance proximity probe engineered for accurate shaft vibration and displacement measurement in critical rotating machinery. Designed for reverse-mount installation, it provides an ideal solution when space constraints or mechanical layouts prevent traditional forward-mounting. Its robust construction and proven compatibility with the 3300 XL monitoring platform make it a trusted component for machinery protection and predictive maintenance programs. Built with corrosion-resistant materials and precision manufacturing, it maintains measurement stability even in demanding industrial environments.

Product Specifications

Applications

• Steam and Gas Turbines: Delivers continuous shaft vibration monitoring for early detection of imbalance and misalignment.

• Compressors and Pumps: Safeguards equipment by measuring shaft displacement to prevent bearing damage or rotor instability.

• Petrochemical Processing: Operates reliably in environments with high humidity and chemical exposure.

• Power Generation Units: Integrates directly with 3300 XL monitoring systems for predictive maintenance and machine protection.

• Industrial Motors and Fans: Provides accurate vibration measurements for any rotating equipment requiring high-precision condition monitoring.

Advantages

• Reverse-Mount Design: Enables installation in confined or otherwise inaccessible areas where standard forward mounting is impractical.

• Exceptional Accuracy: Maintains precise displacement and vibration measurement for reliable machinery protection.

• Rugged Environmental Performance: Withstands extreme temperatures, heavy vibration, and electrical noise without degradation.

• Durable Construction: Stainless-steel housing and corrosion-resistant finish ensure long service life under harsh conditions.

• Seamless System Integration: Fully compatible with Bently Nevada 3300 XL hardware, simplifying system upgrades and replacements.

Frequently Asked Questions (FAQ)

1. Can this probe be installed in any orientation?

   Yes, the reverse-mount threaded design allows secure installation in horizontal, vertical, or angled positions without affecting accuracy.

2. What is the supported measurement range and sensitivity?

   It measures up to 2 mm of non-contact shaft displacement with a typical sensitivity of 7.87 mV/µm, providing precise vibration detection.

3. Is the probe compatible with all Bently Nevada 3300 XL monitors?

   Yes, it is specifically engineered to integrate seamlessly with all 3300 XL monitoring modules for vibration and shaft-position applications.

4. How is alignment maintained during reverse mounting?

   A threaded rear-mount design with locking hardware ensures proper gap alignment and stable probe positioning even in tight spaces.

5. What operating temperature range does it support?

   The probe functions reliably from −40 °C to +125 °C, making it suitable for extreme industrial environments.

6. Can it withstand high vibration levels without losing accuracy?

   Yes, it is rated for up to 20 g of vibration in the 10–2000 Hz frequency range, maintaining stable output under severe mechanical stress.

7. Does the probe provide a differential signal for noise immunity?

   Yes, it outputs a differential voltage signal, which minimizes electromagnetic interference and ensures consistent measurement quality.

8. What is the specified insulation resistance?

   The probe provides insulation resistance greater than 100 MΩ at 500 V DC, ensuring electrical stability in demanding applications.

9. How does it handle electromagnetic or radio-frequency interference?

   Its internal shielding and robust design protect the measurement signal from external electromagnetic disturbances.

10. Is the probe suitable for continuous operation in corrosive or humid conditions?

    Yes, the stainless-steel body and corrosion-resistant finish provide reliable performance in chemically aggressive or high-humidity settings.