Bently 330730-040-03-00 Extension Cable

Product Overview
The Bently 330730-040-03-00 is an extension cable designed for use with Bently Nevada’s 3300XL series eddy current sensors and probes. It serves as an intermediate component to connect the sensor probe to the proximitor (signal conditioner), enabling reliable transmission of high-frequency sensor signals over extended distances. This cable is critical for maintaining signal integrity in industrial vibration and displacement monitoring systems.

Category:
Description

Technical Specifications

  • Cable Type: Coaxial extension cable with specialized shielding
  • Length: 3 meters (standard configuration; other lengths available)
  • Connector Type: ClickLoc® gold-plated copper connectors with corrosion resistance
  • Operating Temperature: -35°C to +85°C (-31°F to +185°F)
  • Environmental Protection: IP67 rated (dust-tight and waterproof)
  • Electrical Performance:
    • Impedance: 50 Ω ± 1 Ω
    • Attenuation: ≤ 0.5 dB/m at 1 MHz
    • Shielding Effectiveness: > 90 dB up to 1 GHz
  • Mechanical Strength:
    • Tensile Strength: 330 N (75 lbf)
    • Bending Radius: 5x cable diameter

Functional Characteristics

  • Signal Integrity Preservation:
    • Triple-shielded construction minimizes electromagnetic interference (EMI) and radio frequency interference (RFI)
    • Low-loss dielectric material ensures minimal signal attenuation
  • Robust Design:
    • Flame-retardant outer jacket (UL 94 V-0 rated)
    • Resistant to oil, chemicals, and UV exposure
  • Quick Connection System:
    • Finger-tight ClickLoc® connectors provide secure mechanical and electrical connections without tools
    • Visual and tactile feedback confirms proper locking
  • Compatibility:
    • Seamlessly integrates with Bently Nevada 3300XL 8mm and 11mm eddy current sensor systems
    • Supports both vibration and displacement measurement applications

Application Scenarios

  • Power Generation:
    • Turbine monitoring (steam, gas, hydro)
    • Generator vibration analysis
  • Petrochemical Industry:
    • Refinery equipment condition monitoring
    • Compressor and pump health assessment
  • Metallurgical Industry:
    • Blast furnace fan monitoring
    • Rolling mill vibration analysis
  • Marine Engineering:
    • Offshore platform machinery protection
    • Shipboard propulsion system monitoring
  • Key Measurement Parameters:
    • Radial vibration (0–1000 μm peak-to-peak)
    • Axial displacement (0–4 mm linear range)
    • Rotor speed and phase reference (Keyphasor®)
    • Differential expansion in steam turbines

System Integration

  • Typical Configuration:
    Probe → Extension Cable (330730-040-03-00) → Proximitor → Monitoring System (e.g., Bently 3500)
  • Cable Routing:
    • Supports installation in harsh environments with high vibration levels
    • Flexible design allows for easy bending around machinery
  • Diagnostics:
    • Continuous cable integrity monitoring through proximitor self-check functions
    • Supports HART protocol for remote diagnostics

Industry Compliance

  • Meets API 670 standards for mechanical protection systems
  • Certified for use in hazardous areas (ATEX/IECEx Zone 1, Class I Div 2)
  • Compliant with IEEE 802.3 for industrial Ethernet applications

Advantages

  • Reliable Performance: Maintains specified electrical characteristics across full operating temperature range
  • Reduced Maintenance: Robust construction minimizes cable failures in demanding industrial environments
  • Flexible Installation: Multiple length options accommodate various machinery layouts
  • Global Support: Backed by Bently Nevada’s extensive service network and technical expertise
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