Bently Nevada 330103-04-00-00

Bently Nevada 330103-04-00-00

Product Overview The Bently Nevada 330103-04-00-00 is an 8 mm diameter eddy current proximity probe from the 3300 XL series, featuring an M10 x 1 metric thread configuration. This probe provides non-contact measurement of shaft vibration, radial position, and axial displacement on rotating machinery.

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Description

Bently Nevada 330103-04-00-00

Technical Specifications

  • Model: 330103-04-00-00
  • Probe Series: 3300 XL 8 mm
  • Thread Type: M10 x 1 metric thread
  • Case Length: 40 mm
  • Unthreaded Length: 0 mm
  • Total Cable Length: 1.0 meter
  • Connector Type: Standard miniature coaxial connector
  • Agency Approval: 00
  • Linear Range: 2.0 mm (80 mils)
  • Scale Factor: 7.87 V/mm (200 mV/mil)
  • Frequency Response: 0 Hz to 10 kHz
  • Operating Temperature: -51°C to +177°C

Function Features

  • Non-contact eddy current sensing technology
  • Patented TipLoc molding for robust probe tip bonding
  • CableLoc design providing 330 N pull strength
  • Static and dynamic measurement capability
  • Direct voltage output proportional to gap distance
  • Complete interchangeability with other 3300 XL components

Application Scenarios

  • Radial vibration monitoring on steam and gas turbines
  • Axial thrust position measurement on compressors
  • Shaft eccentricity and runout detection
  • Keyphasor reference mark detection
  • Fluid-film bearing machine protection

Performance Parameters

  • Incremental scale factor is 7.87 V/mm ±5%
  • Linear range start is 0.25 mm from target
  • Recommended gap setting is -9 VDC
  • Probe tip diameter is 8 mm
  • System accuracy is within API 670 specifications

Material Composition

  • Probe tip is Polyphenylene sulfide (PPS)
  • Probe case is AISI 303/304 stainless steel
  • Cable insulation is Fluorinated Ethylene Propylene (FEP)
  • Connector is gold-plated brass

Structural Characteristics

  • Cylindrical probe body with M10 x 1 mounting thread
  • Integral cable with molded transition
  • Miniature coaxial connector at cable end
  • Smooth probe tip surface for consistent eddy current field

Working Principle The probe operates on eddy current principle. A high-frequency RF signal from the Proximitor sensor flows through the probe coil, generating an electromagnetic field at the probe tip. When a conductive target approaches, eddy currents are induced in the target, changing the coil impedance. This impedance change is converted to a DC voltage proportional to the gap distance between probe tip and target surface.

Installation Requirements

  • Mount in M10 x 1 threaded hole with locknut
  • Maintain perpendicular alignment to shaft surface
  • Set initial gap to approximately -9 VDC
  • Ensure target surface is clean and conductive
  • Use non-metallic tools to avoid magnetizing the probe

Operating Considerations

  • Target material must be conductive
  • Avoid probe contact with rotating shaft
  • Do not exceed linear range limits
  • Protect cable from mechanical damage
  • Verify connector mating is secure

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