Configured for high-frequency signal transmission in vibration monitoring architectures, the Bently Nevada 330930-040-03-CN (330930-040-03-CN Extension Cable) delivers direct electrical continuity between proximity transducers and Proximitor sensor assemblies.

Model Matrix And Suffix Breakdown

• Base Architecture: 330930 - 3300 NSv Extension Cable
• Cable Length Option: 040 - 4.0 meters (13.1 feet) length
• Connector and Cable Option: 03 - Without stainless steel armor, with connector protector
• Agency Approval Option: CN - Multiple Approvals

Hardware Specifications

Rotor Dynamics And Signal Transmission Metrics

The extension cable assembly preserves signal linearity across the measurement loop, maintaining proper eddy-current probe scaling and a nominal average scale factor of 7.87 V/mm (200 mV/mil). Achieving accurate rotor dynamics monitoring requires valid gap voltage targets between -9 VDC and -11 VDC at the monitor output. Cross-talk suppression and matched coaxial impedances prevent signal degradation across the signal run from the probe tip to the Proximitor enclosure.

Ordering Information

• 1 x 330930-040-03-CN 3300 NSv Extension Cable (4.0 meters length, unarmored construction, with connector protectors)

Field Installation Guidelines

• Cable Routing: Position the unarmored extension cable away from heavy alternating current conduits and high-voltage runs to eliminate induced electromagnetic noise.
• System Matching: Verify that the total loop length combining the probe and extension cable totals exactly 5 meters or 9 meters according to system calibration.
• Connector Engagement: Fasten the ClickLoc connectors completely until a positive tactile and audible click confirms secure locking.
• Environmental Protection: Fit the supplied connector protectors over mating joints to seal against moisture and fluid ingress during field operations.

Frequently Asked Questions

• What is the primary function of the 330930-040-03-CN cable?

  It extends the high-frequency signal path between a 3300 NSv proximity probe and its matching Proximitor sensor unit.

• What is the total length specified for this part number?

  This configuration includes an integrated cable length of 4.0 meters (13.1 feet).

• Does this cable include exterior metallic armor protection?

  No, this specific option is built without stainless steel armor, featuring standard jacketing with connector protectors.

• What frequency response does the transmission loop maintain?

  It supports a frequency response of 0 to 10 kHz with +0, -3 dB typical performance using up to 305 meters of field wiring.

• Can this extension cable be used with standard 8 mm system probes?

  No, NSv extension cables must be matched strictly with compatible NSv probes and Proximitor sensors.

• What thermal operating limits apply to this cable assembly?

  The cable assembly functions reliably in thermal environments ranging from -51 deg C up to +177 deg C.

• What purpose do the connector protectors serve?

  They seal the ClickLoc connections to prevent liquids and contaminants from compromising the electrical signal.

• Is external electrical power supplied through this cable?

  No, it is a passive conduit carrying high-frequency carrier signals and DC bias voltages driven by the Proximitor sensor.