Bently Nevada 330195-02-12-90-05 3300 XL 8 mm ETR Reverse Mount Probes

The Bently Nevada 330195-02-12-90-05 3300 XL 8 mm ETR Reverse Mount Probe is an advanced proximity probe designed for accurate shaft vibration and displacement monitoring in critical rotating machinery. Its reverse-mount configuration allows installation in locations where traditional front-mount probes are impractical or impossible. Built with rugged stainless steel and corrosion-resistant materials, it delivers stable performance in high-temperature, high-vibration, and electrically noisy industrial environments. Seamlessly compatible with the Bently Nevada 3300 XL monitoring platform, this probe is a trusted choice for machinery protection and predictive maintenance programs.

Product Specifications

Applications

• Turbines and Generators: Provides continuous vibration and shaft-position monitoring to detect imbalance or misalignment early.

• Compressors and Pumps: Tracks shaft displacement to prevent bearing wear and mechanical failure.

• Petrochemical Facilities: Maintains accurate measurements in areas with high humidity, chemical exposure, and fluctuating temperatures.

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

• Industrial Rotating Equipment: Suitable for any critical machine requiring reliable, real-time displacement and vibration monitoring.

Advantages

• Reverse-Mount Design: Perfect for installations with limited space or where standard front-mounting is impractical.

• Exceptional Accuracy: Provides highly precise vibration and displacement measurements essential for machinery protection.

• Robust Environmental Tolerance: Maintains stable operation across extreme temperatures, strong vibration, and high electrical noise.

• Durable Construction: Stainless-steel housing and corrosion-resistant finish ensure long-lasting performance in harsh industrial conditions.

• Seamless Integration: Fully compatible with Bently Nevada 3300 XL monitoring hardware, making system upgrades and replacements straightforward.

Frequently Asked Questions (FAQ)

1. Can this probe be mounted horizontally or vertically?

   Yes, the reverse-mount design allows flexible installation in either orientation without compromising accuracy.

2. What is the measurement range and sensitivity?

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

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

   Yes, it integrates seamlessly with 3300 XL monitors for vibration, shaft position, and machine protection applications.

4. How is proper alignment achieved during reverse mounting?

   The probe is threaded from the rear into a mounting bracket, allowing precise gap alignment even in tight spaces.

5. What operating temperature range is supported?

   It functions reliably between −40 °C and +125 °C, making it suitable for extreme industrial conditions.

6. Can the probe maintain accuracy under high vibration levels?

   Yes, it is rated to withstand up to 20 g of vibration from 10–2000 Hz without performance degradation.

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

   Yes, it provides a differential voltage output, which helps reduce interference and ensures stable signal transmission.

8. What insulation resistance does it provide?

   The probe offers more than 100 MΩ at 500 V DC, ensuring electrical safety and stable operation.

9. How does the probe handle electromagnetic interference?

   Its internal shielding and high-quality construction protect signals from electromagnetic and radio-frequency interference.

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

    Yes, the stainless-steel body and corrosion-resistant finish ensure reliable performance in chemically aggressive or humid locations.