Configured for signal transmission in compact machine installations, the Bently Nevada 3309330-065-04-05 (3309330-065-04-05 Extension Cable) provides direct electrical connectivity within 3300 NSv transducer systems.

Configuration Breakdown

• 3309330: Base Model (3300 NSv Extension Cable)
• 065: System length indicator
• 04: Cable and connector configuration
• 05: Agency approval rating

Hardware Specifications

Mechanical Monitoring and Transducer Dynamics

The 3300 NSv extension cable is engineered to maintain high signal fidelity in small-diameter shaft applications. As part of the transducer loop, it supports eddy-current probe scaling to ensure linear output. During commissioning, gap voltage validation against -10 VDC targets remains necessary to maintain the probe within its intended linear measurement range. The cable assembly is constructed to minimize signal attenuation and support cross-talk suppression in high-density installations. Its impedance characteristics are matched to the NSv probe and Proximitor sensor, ensuring accurate rotor dynamics data acquisition without the need for additional site-specific calibration.

Ordering Info

• 1 x 3309330-065-04-05 Extension Cable
• 1 x Connector protection kit

Field Installation Guidelines

• Routing: Route the extension cable through conduit or protected pathways to prevent mechanical damage; avoid sharp bends that may affect the characteristic impedance of the coaxial geometry.
• Connection: Ensure both the probe-to-cable and cable-to-Proximitor connections are hand-tightened and secured with the provided connector protectors to prevent moisture or oil ingress.
• Grounding: Maintain shield continuity throughout the cable run; terminate the shield at the specified grounding point on the Proximitor sensor chassis.
• Verification: After connection, perform a gap voltage check at the Proximitor terminals to verify that the entire transducer loop is operational and correctly scaled.

Frequently Asked Questions

• Is this cable compatible with legacy transducer systems?

  The 3300 NSv cable is designed to replace 3300 RAM, 3000-Series, and 7000-Series 190 systems, but it must be paired with compatible NSv-series probes and sensors.

• Can I splice this cable if it is too long for my installation?

  Splices are strictly prohibited as they alter the system impedance and signal propagation characteristics, leading to measurement inaccuracies or loss of calibration.

• What is the impact of the 7.87 V/mm scale factor?

  This scale factor defines the sensitivity of the entire transducer system; it must match the configured sensitivity in the monitor or host system for accurate readings.

• Why is the temperature rating up to 177 deg C?

  High-temperature tolerance is necessary for close-proximity installations near turbine casings or other high-heat zones where standard cabling would degrade.

• How do I identify if the connector is properly seated?

  The ClickLoc connector mechanism provides tactile and audible feedback when fully engaged; ensure the connector protector is tightened over the interface.

• Are these cables sensitive to electromagnetic interference?

  While the coaxial construction provides inherent shielding, maintain separation from high-current AC power cables to prevent induced noise in the vibration signal.

• What happens if the cable shield is damaged?

  Damage to the shield compromises RFI/EMI immunity, which may cause erratic readings or high noise floors in the vibration spectrum.

• Does this extension cable require its own power supply?

  No, this is a passive component within the transducer loop, receiving power through the connection from the Proximitor sensor.