Bently Nevada 330104-00-25-50-02-05 3300 XL 8 mm Proximity Probes

The Bently Nevada 330104-00-25-50-02-05 3300 XL 8 mm Proximity Probe is a precision eddy current sensor designed for real-time monitoring of rotating machinery. As part of the 3300 XL series, this probe provides accurate measurements of shaft displacement and vibration, enabling predictive maintenance and early fault detection in critical industrial applications.

With an 8 mm probe diameter and a total cable length of 5 meters, this probe offers flexibility for installation in large machinery setups or complex plant layouts. The stainless steel probe and mineral-insulated cable ensure durability and reliable performance under extreme vibration, temperature, and electromagnetic interference conditions. It is compatible with Bently Nevada 3300 XL monitoring systems, providing continuous, high-fidelity signals for machine protection and condition monitoring systems.

Product Specifications

Applications

The 330104-00-25-50-02-05 probe is used for accurate monitoring of industrial machinery where reliable shaft position and vibration data are critical:

• Steam and Gas Turbines – Monitors shaft displacement to detect imbalance, misalignment, and rotor instability.

• Compressors – Tracks rotor position and vibration to ensure safe and efficient operation.

• Pumps – Detects cavitation, bearing wear, and shaft deflection.

• Generators and Electric Motors – Supports smooth operation and early anomaly detection.

• Refineries and Petrochemical Plants – Reliable in harsh, high-vibration environments.

• Machine Protection Systems – API 670-compliant integration for condition monitoring.

Advantages

The Bently Nevada 330104-00-25-50-02-05 8 mm Probe offers several technical benefits:

• High Accuracy – Precise measurement of displacement and vibration with excellent linearity.

• Rugged Construction – Stainless steel probe and mineral-insulated cable withstand harsh industrial conditions.

• Wide Frequency Response – Detects both low-speed and high-speed shaft vibrations.

• Seamless Integration – Works directly with Bently Nevada 3300 XL monitoring systems.

• Maintenance-Free Operation – Non-contact design minimizes wear and reduces maintenance requirements.

• Temperature and Vibration Resistance – Performs reliably under extreme conditions.

• Predictive Maintenance Support – Early detection of anomalies helps prevent unplanned downtime.

• Flexible Installation – 5-meter cable allows installation across large machinery or complex layouts.

Frequently Asked Questions (FAQ)

1. Which monitoring systems is this probe compatible with?

   The probe is fully compatible with Bently Nevada 3300 XL monitoring systems, providing linearized displacement and vibration signals.

2. What is the nominal sensitivity of the probe?

   Nominal sensitivity is approximately 20 mV/µm when used with a 3300 XL monitoring system.

3. What frequency range does this probe support?

   The probe operates from DC to 10 kHz, covering both low-speed and high-speed machinery vibration detection.

4. What is the operating temperature range for the probe head?

   The probe functions reliably between -40°C and +120°C while maintaining linearity and signal fidelity.

5. Can this probe be used in high-humidity or industrial environments?

   Yes, it is designed to operate in 0–95% non-condensing humidity and withstand harsh industrial conditions.

6. What is the linear measurement range of the probe?

   ±10% of the calibrated gap ensures accurate and proportional output.

7. Does the probe require external power?

   No, it is powered and conditioned through the 3300 XL monitoring system.

8. Is the probe suitable for API 670-compliant systems?

   Yes, it integrates seamlessly into API 670-compliant protection and monitoring platforms.

9. Does cable length affect measurement accuracy?

   Yes, the probe is calibrated for a 5-meter cable. Using the recommended length ensures precise measurement and signal fidelity.

10. What type of mounting is recommended?

    Threaded sleeve or custom machinery mounting is recommended to maintain proper alignment and calibration.