Bently 330907-A05-B30C05-D02-ECN Eddy Current Proximity Probe

Product Overview
The Bently 330907-A05-B30C05-D02-ECN is a high-performance eddy current proximity probe designed for non-contact measurement of vibration, displacement, and position in rotating machinery. It operates on the principle of electromagnetic induction, generating a high-frequency magnetic field that interacts with the target surface to produce eddy currents. Changes in the gap between the probe and target alter the impedance of the probe’s coil, which is converted into a voltage signal proportional to the displacement.

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Description

Technical Specifications

  • Probe Diameter: 8 mm (standard for 3300XL series)
  • Linear Range: Up to 1.5 mm (0.06 inches)
  • Sensitivity: 7.87 V/mm (200 mV/mil)
  • Frequency Response: 0 Hz to 10 kHz
  • Operating Temperature: -52°C to +177°C (standard); extended temperature models available up to +260°C
  • Thread Type: M10 x 1 (metric) or 3/8-24 UNF (imperial, depending on model)
  • Cable Length: Available in 0.5 m, 1 m, 5 m, and 7 m options
  • Connector Type: Micro ClickLoc coaxial connector for secure, tool-free installation
  • Material: Stainless steel probe body with gold-plated connectors for corrosion resistance
  • Certifications: Compliant with API 670 and other international standards for mechanical protection systems

Functional Features

  • Non-Contact Measurement: Eliminates wear and tear associated with contact-based sensors, ensuring long-term stability.
  • High Sensitivity: Precise detection of small displacement changes for early fault diagnosis.
  • Wide Linear Range: Suitable for applications requiring large measurement ranges, such as axial displacement and differential expansion.
  • Environmental Resistance: Triple-shielded cable and rugged construction withstand harsh industrial environments, including moisture, chemicals, and EMI.
  • Easy Installation: ClickLoc connectors provide audible confirmation of proper engagement, reducing installation errors.
  • Extended Temperature Range: Optional high-temperature models support applications up to +260°C.
  • Explosion-Proof Design: Models with the “-05” or “-CN” suffix are designed for use in hazardous environments, meeting ATEX and IECEx certifications.

Application Scenarios

  • Power Generation: Monitoring vibration and displacement in turbines, generators, and compressors to prevent catastrophic failures.
  • Oil & Gas: Protecting pumps, expanders, and reciprocating compressors from excessive vibration or misalignment in refineries and offshore platforms.
  • Petrochemical: Ensuring reliable operation of critical rotating equipment in chemical processing plants.
  • Steel & Metallurgy: Monitoring rollers, fans, and gearboxes in high-temperature and dusty environments.
  • Marine Engineering: Supporting propulsion systems and auxiliary equipment on ships and offshore vessels.
  • Aerospace: Testing and monitoring engine components in test cells for vibration and thermal expansion.

Key Advantages

  • High Accuracy: Linear measurement range and high sensitivity enable precise monitoring of machinery health.
  • Durability: Stainless steel construction and gold-plated connectors ensure long service life in demanding environments.
  • System Integration: Seamlessly integrates with Bently Nevada’s 3300XL and 3500 series monitoring systems for comprehensive machinery protection.
  • Global Support: Backed by Bently Nevada’s global network of technical support and service centers.
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