Bently Nevada 330191-02-10-10-CN 3300 XL 8 mm ETR Probe

The Bently Nevada 330191-02-10-10-CN 3300 XL 8 mm ETR Probe is a high-precision proximity probe designed for continuous, non-contact measurement of shaft vibration and displacement in demanding industrial applications. As part of the well-established 3300 XL series, it delivers exceptional reliability and measurement accuracy, even in environments with high temperatures, vibration, or electromagnetic interference. With an 8 mm sensing tip and a total length of 1.0 meter, this probe provides the robust construction and stable output needed for predictive maintenance and machine protection systems used in critical rotating equipment.

Product Specifications

Applications

The 330191-02-10-10-CN probe is widely used for vibration and displacement monitoring in:

• Steam and Gas Turbines – Provides accurate rotor vibration measurements for early detection of imbalance and misalignment.

• Compressors and Pumps – Delivers reliable shaft displacement readings for condition monitoring and maintenance planning.

• Motors and Generators – Enables predictive maintenance and protection from unexpected mechanical failures.

• Petrochemical Equipment – Performs accurately in corrosive and hazardous process environments.

• Industrial Machinery – Fits OEM designs and retrofit projects requiring compact, high-performance probes.

Advantages

• High Accuracy – 8 mm sensing tip ensures stable and precise displacement measurements.

• Compact 1 m Length – Ideal for installations where space is limited yet high signal quality is required.

• Wide Temperature Tolerance – Maintains accuracy from –35 °C to +177 °C.

• Superior Noise Immunity – Coaxial construction minimizes electromagnetic interference.

• Durable Stainless-Steel Housing – Offers excellent corrosion resistance and long service life.

• Pressure-Resistant Design – Operates reliably in environments up to 10 bar.

• Seamless Integration – Fully compatible with Bently Nevada 3300 XL Proximitor sensors and 3500 series monitoring systems.

• Easy Installation – Standard 3/8–24 UNF mounting simplifies setup and maintenance.

FAQ

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

   The probe offers a nominal linear range of 2.0 mm (80 mils) for precise shaft vibration measurement.

2. What sensitivity specification does it provide?

   It delivers a sensitivity of approximately 7.87 V/mm (200 mV/mil) for accurate displacement monitoring.

3. Is this probe compatible with 3300 XL Proximitor sensors?

   Yes, it integrates seamlessly with 3300 XL Proximitor sensors without adapters.

4. What is the supported frequency response?

   The probe supports a frequency response from DC up to 10 kHz.

5. What mounting thread is recommended for secure installation?

   A 3/8–24 UNF thread or compatible housing is recommended.

6. Can the probe operate in high electromagnetic interference environments?

   Yes, the coaxial cable and internal shielding provide strong resistance to EMI.

7. How does the probe handle temperature variations?

   It maintains calibration and accuracy from –35 °C to +177 °C.

8. What pressure rating can it withstand?

   The probe is rated for environments up to 10 bar pressure.

9. Does it require additional shielding for noise suppression?

   No, the built-in coaxial shielding is sufficient for most industrial applications.

10. Is it suitable for use in hazardous or classified areas?

    Yes, when installed with certified Proximitor systems, it can meet hazardous area compliance standards.