Bently 330105-02-12-05-02-00 Eddy Current Proximity Probe

Technical Specifications

• Probe Type: 8 mm eddy current proximity probe
• Measurement Range:
  • Linear range: 2.00 mm (0.080 inches)
  • Minimum gap: 0.25 mm (0.010 inches)
  • Maximum gap: 2.25 mm (0.090 inches)
• Sensitivity: 8 mV/μm (200 mV/mil)
• Frequency Response: 0 Hz to 10 kHz (flat response up to 1 kHz)
• Cable Length: 5 meters (16.4 feet) standard (other lengths available)
• Connector Type: M10×1 threaded probe with ClickLoc™ coaxial connector
• Operating Temperature:
  • Probe: -50°C to +175°C (-58°F to +347°F)
  • Extension Cable: -50°C to +200°C (-58°F to +392°F)
• Electrical Isolation: >10⁹ Ω between probe and ground
• EMI/RFI Immunity: Shielded cable design minimizes electromagnetic interference
• Compliance Standards: Meets API 670 and other international mechanical protection norms

Functional Features

• Non-Contact Measurement: Uses eddy current technology to measure gap changes between the probe tip and rotating shaft without physical contact, eliminating wear and reducing maintenance.
• High Precision: Detects displacements as small as 0.25 μm (0.001 mil), enabling early fault detection in bearings, gears, and rotors.
• Wide Temperature Tolerance: Withstands extreme environments, including high-temperature zones near turbines and cryogenic applications.
• Robust Construction: Stainless steel probe housing and armor-clad extension cable resist corrosion, vibration, and mechanical damage.
• System Integration: Compatible with Bently 3500, 3300, and 1900 monitoring systems, as well as third-party PLC/DCS platforms via 4–20 mA outputs.
• Quick Installation: ClickLoc™ connector ensures secure, tool-free connection and disconnection.
• Multi-Parameter Monitoring: Simultaneously measures axial displacement, vibration amplitude, and rotational speed when paired with appropriate signal processing modules.

Application Scenarios

• Power Generation: Monitors turbine shaft vibrations and axial displacements to prevent blade fractures, bearing failures, and unplanned outages.
• Oil & Gas: Detects compressor rotor movements for anti-surge control, optimizing efficiency and safety in upstream and downstream processes.
• Petrochemical: Measures pump and fan vibrations to avoid catastrophic failures from misalignment, imbalance, or cavitation.
• Steel & Metallurgy: Tracks rolling mill gearbox displacements for predictive maintenance of critical components under heavy loads.
• Marine Engineering: Monitors propeller shaft conditions in ships to ensure reliable operation in harsh seawater environments.
• Aerospace: Supports test cell applications for engine and rotor testing with high-temperature probe variants.

Key Advantages

• Accuracy: High-resolution measurements minimize false alarms and ensure timely fault diagnosis.
• Reliability: Proven in over 50,000 installations worldwide, with a mean time between failures (MTBF) exceeding 100,000 hours.
• Flexibility: Available in various probe diameters (5 mm, 8 mm, 11 mm) and cable lengths to suit diverse installation needs.
• Cost-Effectiveness: Reduces maintenance costs by extending equipment lifespan through proactive monitoring and early intervention.
• Global Support: Backed by Bently Nevada’s worldwide service network, including on-site calibration and troubleshooting.