The Bently Nevada 330103-00-12-10-02-00 3300 XL 8mm Proximity Probe is part of the world-renowned 3300 XL series — the industry benchmark for non-contact shaft vibration and position monitoring. It provides precise, continuous measurement of rotating shaft displacement in turbines, compressors, pumps, motors, and gearboxes, making it a critical component in predictive maintenance programs and machine protection systems.

This particular model features an 8mm probe tip with an 1 meter cable and is designed to operate flawlessly even in extreme industrial environments, including high temperatures and chemically aggressive atmospheres. When paired with a matching 3300 XL Proximitor Sensor and extension cable, the system offers superior linearity across a broad dynamic range and ensures long-term measurement stability.

Thanks to its rugged IP68 rating and robust electromagnetic shielding, the 330103-00-12-10-02-00 probe delivers trustworthy performance in mission-critical assets, making it the preferred solution for industries such as oil & gas, petrochemical, refining, and power generation.

Technical Specifications

Applications

• Steam and Gas Turbines: For real-time vibration and shaft position monitoring to prevent catastrophic failure and optimize efficiency.

• Centrifugal Compressors: Detects imbalance, shaft misalignment, fluid-induced instability, and rotor dynamics issues.

• Electric Motors: Used to identify early-stage bearing wear, misalignment, or rotor-to-stator contact.

• Industrial Pumps: Monitors for cavitation, excessive vibration, and misalignment.

• Gearboxes: Provides accurate feedback on gear tooth wear and misalignment in high-speed applications.

• Fans and Blowers: Helps maintain optimal vibration levels and ensures machine longevity.

• Refineries and Petrochemical Plants: Suitable for hazardous areas and corrosive environments, monitoring rotating equipment such as compressors and expander turbines.

• Power Generation Facilities: Used extensively for turbine supervisory instrumentation (TSI).

Advantages

• Precision Sensing: Delivers accurate and linear displacement measurements across its full range.

• Wide Operating Temperature: Functions reliably from -35 °C to +177 °C — suitable for turbines and hot processes.

• Rugged IP68 Design: Fully submersible and dustproof — proven for outdoor or chemically exposed environments.

• Strong EMI/RFI Immunity: Maintains measurement integrity even in environments with high electromagnetic noise.

• Mechanical Stability: Resistant to shock, vibration, and fatigue, providing years of maintenance-free performance.

• Flexible Installation: 1 meter cable accommodates installations where greater distance to the sensor is required.

• System Compatibility: Fully compatible with 3300 XL Proximitor Sensors and Bently Nevada 3500 series monitors.

• Low Maintenance: Designed for long life with no frequent recalibration required.

• ATEX/IECEx Certified Options: Available for hazardous classified installations.

• Globally Trusted: Field-proven in critical industries for more than 20 years.

FAQ (Frequently Asked Questions)

1. What is the key function of this proximity probe?

   It measures the precise distance between a rotating shaft and its bearing housing, enabling vibration and position monitoring.

2. Can this probe be used in high-temperature environments?

   Yes, it supports temperatures up to +177 °C, making it suitable for steam and gas turbines.

3. What equipment is it typically installed on?

   It is used on turbines, compressors, motors, pumps, gearboxes, fans, and other critical rotating machines.

4. How is the probe connected to a monitoring system?

   It connects via its miniature coaxial connector to a 3300 XL Proximitor Sensor.

5. Is this probe compatible with legacy systems?

   Yes, it can work with both 3300 and 3300 XL Proximitor Sensors.

6. What environmental protection does the probe offer?

   It is IP68-rated, ensuring protection against dust ingress and full submersion.

7. Can I use this probe in hazardous areas?

   Yes, ATEX/IECEx-certified options are available for classified areas.

8. How often should the probe be replaced?

   These probes typically provide years of reliable service with minimal maintenance, often lasting through multiple equipment overhauls.

9. What is the purpose of the 12 ft cable?

   It allows installations where a longer reach is needed between the probe mounting point and the monitoring panel.

10. How accurate is the probe at detecting shaft displacement?

    It offers highly linear output within ±0.127 mm tolerance over its measurement range, suitable for critical vibration analysis.