Bently Nevada 330930-40-03-05

Bently Nevada 330930-40-03-05

Product Overview: The 330930-40-03-05 is a 4.0-meter (approximately 13.1 feet) extension cable within the Bently Nevada 3300 XL NSv proximity sensor system. The “40” segment indicates the 4.0-meter cable length, the “03” armor option indicates a non-armored cable with a connector protector, and the “05” certification option denotes multiple agency certifications including CSA NRTL/C and BASEEFA/CENELEC, including CSA Division 2. This cable is designed for installations in hazardous areas requiring certified components.

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Description

Bently Nevada 330930-40-03-05

Technical Specifications:

  • Cable Length: 4.0 meters (13.1 feet)
  • Cable Type: Low-noise coaxial, non-armored with connector protector
  • Connector Type: ClickLoc miniature coaxial connectors with protective housing
  • Capacitance: 69.9 pF/m (21.3 pF/ft) typical
  • DC Resistance (Center Conductor): 0.220 Ω/m (0.067 Ω/ft)
  • DC Resistance (Shield): 0.066 Ω/m (0.020 Ω/ft)
  • Operating Temperature: -51°C to +177°C (-60°F to +351°F)
  • Certification: CSA NRTL/C, BASEEFA/CENELEC, CSA Division 2
  • Compatibility: 3300 XL NSv proximity probes and 330980 NSv Proximitor sensors

Functional Features:

  • Connector protector provides additional mechanical protection at the connector interface
  • ClickLoc locking connectors prevent accidental disconnection under vibration
  • Low-noise coaxial construction shields the eddy current signal from electromagnetic interference
  • Fully interchangeable with other 3300 XL NSv system components without individual calibration
  • Certified for use in hazardous area installations including CSA Division 2

Application Scenarios:

  • Hazardous area installations in oil and gas processing facilities
  • Chemical plant rotating equipment requiring certified sensor components
  • Centrifugal compressors and process gas compressors
  • Power generation auxiliary machinery in classified areas

Performance Parameters:

  • System sensitivity (when paired with NSv probe and Proximitor): 7.87 mV/μm (200 mV/mil) ± 6.5%
  • Linear range (system dependent): 0.5 to 1.75 mm (20 to 55 mil)
  • Frequency response: 0 to 10 kHz
  • Signal attenuation at 1 kHz: less than 1%
  • Signal attenuation at 10 kHz: less than 5%

Material Composition:

  • Low-noise coaxial cable with shielded construction
  • ClickLoc miniature coaxial connectors with gold-plated contacts
  • Industrial-grade polymer cable jacket with connector protector housing

Structural Features:

  • Non-armored design with connector protector for enhanced connection durability
  • Factory-terminated connectors on both ends for plug-and-play installation
  • Compact diameter suitable for routing through tight machinery clearances

Working Principle:
The extension cable carries the high-frequency eddy current excitation signal from the Proximitor to the NSv proximity probe and returns the modulated signal that varies proportionally with the gap between the probe tip and the target surface. The cable’s precisely controlled impedance and capacitance ensure that the signal integrity is maintained across the full system length.

Installation Requirements:

  • Route cable away from high-voltage power lines with a minimum separation of 200 mm
  • Maintain minimum bending radius of 45 mm to prevent internal conductor damage
  • Secure cable with cable ties to prevent movement or vibration-induced fatigue
  • Ensure connector connections are fully seated and locked before energizing
  • Total system length (probe integral cable + extension cable) must match the Proximitor configuration
  • Verify certification markings match the installation area classification

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