Description
Bently 330930-040-00-40
- Technical Specifications:
- Cable Length: 4.0 meters (13.1 feet)
- Cable Type: Low-noise coaxial, non-armored
- Connector Type: ClickLoc miniature coaxial connectors
- 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)
- Compatibility: 3300 XL NSv proximity probes and 330980 NSv Proximitor sensors
- Functional Features:
- Provides noise-resistant signal transmission between probe and Proximitor
- 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
- Designed for compact installation in confined machinery spaces
- Application Scenarios:
- Centrifugal air compressors with tight clearance requirements
- Refrigeration compressors and process gas compressors
- Small pumps, fans, and blowers requiring NSv-class sensor systems
- OEM machinery monitoring packages
- 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
- Structural Features:
- Non-armored (standard jacket) design for routing through conduit or cable tray
- 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
- Usage Notes:
- Verify the complete part number including all suffix digits matches the system configuration before installation
- Do not splice or modify the cable — this will alter the system impedance and invalidate calibration
- Inspect connector faces for contamination before mating; clean with appropriate solvent if necessary
- The “-40” suffix at the end may indicate a specific regional or certification variant — confirm with the supplier documentation
