The Bently Nevada 330191-00-16-10-05 3300 XL 8 mm ETR Probe is a high-precision proximity probe engineered for vibration and shaft position monitoring in critical rotating machinery. Designed as part of the 3300 XL series, it provides stable, repeatable measurements across a wide range of operating conditions. Its 8 mm tip diameter allows for greater linear range and improved signal quality compared with standard 5 mm probes, making it an excellent choice for demanding industrial environments such as power generation, petrochemical plants, and heavy manufacturing.

Product Specifications

Applications

The 330191-00-16-10-05 probe is specifically designed for accurate vibration and displacement measurements in the following scenarios:

• Steam and Gas Turbines – Continuous shaft vibration and position monitoring to prevent catastrophic failures.

• Compressors and Pumps – Real-time feedback for machinery health and predictive maintenance.

• Industrial Motors and Generators – Detection of imbalance or misalignment conditions.

• Petrochemical and Refining Equipment – High reliability in harsh, hazardous atmospheres.

• Heavy Manufacturing Lines – Long-term condition monitoring for rotating assets.

Advantages

• Wide Measurement Range – 8 mm tip allows larger linear range for higher displacement detection.

• High Signal Integrity – Maintains stable sensitivity with low noise across the specified frequency band.

• Robust Environmental Resistance – Operates reliably from –35 °C to +177 °C and in high-pressure applications.

• Seamless Compatibility – Fully integrates with Bently Nevada 3300 XL Proximitor sensors and monitoring systems.

• Corrosion-Resistant Construction – Stainless steel housing and PEEK insulation ensure durability in harsh conditions.

• Precision Factory Calibration – Each probe is tested for consistent sensitivity and linearity.

• Easy Installation – Standard mounting threads simplify retrofit or new installations.

FAQ

1. What is the nominal linear range of this probe?

   The probe provides a nominal linear range of approximately 2.0 mm (80 mils) for accurate displacement measurements.

2. How is sensitivity maintained across temperature variations?

   The 3300 XL design compensates for temperature changes to keep sensitivity at about 7.87 V/mm (200 mV/mil).

3. Can this probe be directly connected to a Proximitor sensor?

   Yes, it is fully compatible with 3300 XL Proximitor sensors without the need for adapters.

4. What is the recommended mounting thread specification?

   A 3/8–24 UNF mounting thread is standard, though compatible housings can also be used.

5. Does the probe support high-frequency vibration detection?

   It offers a frequency response from DC up to 10 kHz, sufficient for most rotating machinery applications.

6. Is special shielding required for EMI protection?

   The probe’s coaxial design provides inherent shielding, requiring no additional EMI protection under normal conditions.

7. Can the probe operate in pressurized environments?

   Yes, it is rated to withstand pressures up to 10 bar when properly installed.

8. How does cable routing affect signal quality?

   As long as minimum bend radii are respected and connectors are secure, signal quality remains stable.

9. Is the probe compatible with hazardous area installations?

   When used with approved Proximitor systems, it meets the requirements for many hazardous or classified areas.

10. How is insulation resistance ensured in humid conditions?

    The PEEK insulation and stainless steel body provide excellent resistance to moisture, maintaining ≥10 GΩ at 500 VDC.