The Bently Nevada 330103-00-04-20-02-CN is a high-precision 8 mm proximity probe from the widely adopted 3300 XL series, engineered for demanding machinery condition monitoring and vibration analysis tasks. It is specifically used to measure static and dynamic shaft displacement in critical rotating equipment such as turbines, compressors, pumps, and motors.

This model provides a reliable and accurate non-contact measurement solution based on eddy-current sensing technology. The “-CN” suffix denotes regional customization for the Chinese market, but it maintains full electrical and mechanical compatibility with the global 3300 XL product line.

Key Features

• 8 mm probe tip optimized for standard industrial clearances

• Designed for continuous vibration and position monitoring

• Compatible with 3300 XL extension cables and Proximitor sensors

• M16 x 1.5 threaded case for secure installation

• High resistance to EMI/RFI and environmental interference

• Durable stainless steel construction for long service life

• Accurate and linear output over the full calibrated range

• Regional configuration for China (-CN variant)

Technical Specifications

Typical Applications

• Turbine shaft vibration monitoring

• Compressor and pump displacement analysis

• Axial position monitoring in large rotating equipment

• Condition-based maintenance programs

• Integration with Bently Nevada 3500/3300 monitoring systems

• Machinery protection in power generation and petrochemical industries

• Vibration diagnostics in steel, pulp, and paper manufacturing

• Equipment performance monitoring in hazardous or remote environments

Advantages

• High Accuracy: Ideal for precise vibration and shaft displacement readings

• Reliable Operation: Performs consistently in high-vibration, high-temperature settings

• Interchangeable Components: Fully compatible with other 3300 XL system parts

• Customizable Lengths: Available with various cable lengths to meet site requirements

• Certified for Industrial Use: Designed for harsh environmental conditions and demanding safety standards

• Non-contact Sensing: Prevents mechanical wear and allows continuous real-time monitoring

• Reduced Downtime: Enables predictive maintenance and reduces risk of unplanned failures

• EMI/RFI Shielding: Ensures stable signal quality in electrically noisy environments

Frequently Asked Questions (FAQ)

1. What does the “-CN” at the end of the model number indicate?

   It refers to a regional variant typically designated for China. Functionality and performance remain equivalent to global versions.

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

   Yes, it is designed for full compatibility with Bently Nevada 3300 XL extension cables and Proximitor sensors.

3. What is the typical gap range the probe can measure?

   The standard calibrated range is from 0.25 mm to 2.54 mm (0.010 to 0.100 inches).

4. Can this proximity probe be used in hazardous locations?

   Only if installed with appropriately certified accessories and following hazardous area compliance guidelines.

5. What mounting options are available?

   It comes with an M16 × 1.5 mm threaded body for secure and adjustable positioning.

6. Can the probe withstand vibration during operation?

   Yes, it is rated for up to 20 g vibration and 500 g shock.

7. Is it possible to replace just the probe without replacing the entire system?

   Yes, components in the 3300 XL series are modular and field-replaceable.

8. What power supply does the probe require?

   The probe operates as part of a system; power is supplied via the connected Proximitor sensor.

9. How long is the standard cable?

   The default configuration includes a 10-meter cable, though other lengths are available.

10. What kind of signal does the probe output?

    An analog voltage signal proportional to the proximity (gap) distance.