The Bently Nevada 330104-00-20-10-02-00 3300 XL 8 mm Proximity Probe is a premium-grade non-contact position and vibration sensor used in high-value rotating equipment monitoring applications. Part of the world-renowned 3300 XL series, this probe employs proven eddy current technology to deliver precise measurements of shaft dynamic behavior and axial position.

This particular model features a 1 meter length, non-armored cable, and is optimized for ease of installation and long-term reliable operation, even in harsh industrial conditions. It works in tandem with 3300 XL extension cables and Proximitor sensors to provide a linear voltage output proportional to the shaft’s distance from the probe tip.

Designed for use in machine protection systems across industries such as oil & gas, power generation, refining, and heavy industry, the 330104-00-20-10-02-00 supports operators with accurate and timely diagnostics, enabling better decisions for maintenance and asset protection.

Product Specifications

Applications

The 330104-00-20-10-02-00 Proximity Probe is deployed worldwide in industries requiring high-reliability shaft position and vibration monitoring:

• Gas and Steam Turbines

  Monitoring rotor axial position and shaft vibration for trip protection and predictive maintenance.

• Centrifugal Compressors

  Providing insight into rotor dynamics and early fault detection.

• Electric Motors

  Tracking balance, alignment, and bearing health to prevent catastrophic failures.

• Industrial Pumps

  Monitoring critical pump shafts in chemical processing, refineries, and utilities.

• Fans and Blowers

  Ensuring operational stability and preventing excessive vibration.

• Gearboxes

  Supporting detection of misalignment and gear mesh wear.

• Paper Mills, Steel Plants, Marine Engines

  Broad applications across heavy process industries.

Product Advantages

• World-Class Reliability

  Built on Bently Nevada’s globally trusted 3300 XL platform — the most widely used proximity transducer system in the world.

• High-Temperature Performance

  Probe rated up to 177 °C for operation in the hottest machinery conditions.

• Accurate, Stable Output

  Exceptional linearity and minimal drift over long service life.

• Non-Armored Flexibility

  Easier routing and lighter weight for installations where cable protection is not required.

• Certified for Harsh Environments

  Meets CE, ATEX Zone 2, CSA, and IECEx certifications for hazardous industrial settings.

• Sealed Against Moisture

  100% condensing humidity rated.

• Industry Standard Compatibility

  Fully compatible with 3300 XL Proximitor sensors and extension cables.

• Low Maintenance Requirements

  Factory-calibrated for long-term use without recalibration.

• Trusted by Leading Operators

  Installed globally in thousands of turbine, compressor, and motor systems.

Frequently Asked Questions (FAQ)

1. What is the typical application for this probe?

   Shaft position and vibration monitoring for turbines, compressors, motors, pumps, and gearboxes.

2. What is the key difference between armored and non-armored cable?

   Armored cables offer additional mechanical protection, while non-armored cables provide easier routing in clean environments.

3. What is the cable length of this model?

   0.323 kg.

4. Is this probe certified for hazardous locations?

   Yes — CE, ATEX Zone 2, CSA, IECEx certified.

5. What is the recommended target material?

   4140 steel or equivalent for factory calibration.

6. Is recalibration needed over time?

   No — designed for long service life without recalibration.

7. How is vibration measured?

   By detecting shaft movement relative to the probe tip through eddy current response.

8. What is the linear range?

   80 mils (2.0 mm).

9. What is the operating temperature rating?

   Probe: -51 °C to +177 °C.

10. Is this model backward compatible with older Bently Nevada systems?

    Yes — compatible with many existing 3300 series Proximitor modules.