Bently Nevada 330901-20-63-05-02-CN 3300 NSv Proximity Probes

The Bently Nevada 330901-20-63-05-02-CN 3300 NSv Proximity Probe is a high-precision, non-contact sensor designed for small-shaft, high-speed rotating machinery where accurate monitoring of vibration and displacement is essential. As part of the 3300 NSv (Narrow Side-view) series, this probe provides continuous, real-time measurements of shaft vibration, radial displacement, and dynamic motion. Constructed from rugged stainless steel and using advanced eddy-current sensing technology, it is built to operate reliably in harsh industrial environments, including power plants, petrochemical facilities, and high-speed compressors. This probe integrates seamlessly with Bently Nevada 3300 and 3500 monitoring systems, providing reliable predictive maintenance data and early detection of potential machinery faults.

Product Specifications

Applications

The 330901-20-63-05-02-CN probe is suitable for tight-space, high-speed machinery monitoring, including:

• Small steam, gas, and hydro turbines

• High-speed compressors and pumps

• Industrial fans, blowers, and electric motors with limited installation space

• Rotating machinery in petrochemical and refinery operations requiring precise vibration and displacement data

• Gearboxes and auxiliary equipment integrated with Bently Nevada 3300/3500 monitoring systems

Advantages

• Compact Design – 5 mm probe tip allows installation in constrained spaces without compromising measurement accuracy.

• High Accuracy – Maintains ±0.25% linearity for reliable vibration and displacement monitoring.

• Rugged Construction – Stainless steel body with IP67 environmental protection ensures reliability in harsh industrial conditions.

• Temperature Stability – Operates reliably from –35 °C to +177 °C with minimal signal drift.

• Seamless System Integration – Fully compatible with Bently Nevada 3300 and 3500 monitoring platforms.

• Low Maintenance – Non-contact measurement reduces mechanical wear and maintenance requirements.

FAQ

1. What sensing technology is used in the 330901-20-63-05-02-CN probe?

   It uses eddy-current non-contact displacement sensing for accurate vibration and shaft position monitoring.

2. How is this probe connected to a Bently Nevada monitoring system?

   It connects via a proximitor driver, preserving factory calibration for accurate readings.

3. Can the probe be mounted in any orientation?

   Yes, horizontal, vertical, or angled installation is supported, provided the recommended shaft-to-probe gap is maintained.

4. What is the recommended probe-to-shaft gap?

   Typically 1.0 mm ±0.2 mm depending on the target material and system setup.

5. Is this probe suitable for intrinsically safe or hazardous environments?

   Yes, when installed with certified intrinsically safe barriers or protective housings.

6. What is the frequency response of the probe?

   DC to 10 kHz, suitable for high-speed vibration measurement.

7. Can the probe measure vibration on non-metallic shafts?

   No, eddy-current sensing requires a conductive metallic target.

8. How does temperature variation affect measurement stability?

   Built-in temperature compensation ensures stable output from –35 °C to +177 °C.

9. What type of output signal does the probe provide?

   A proportional voltage signal compatible with Bently Nevada 3300/3500 monitoring systems.

10. Does the probe require shielding in high electromagnetic interference environments?

    Yes, proper cable shielding and grounding are recommended to maintain signal integrity.