The Bently Nevada 330930-065-03-05, also cataloged as the 330930-065-03-05 Cable Extension, operates as a dedicated hardware component for signal transmission between proximitor sensors and monitoring instrumentation within TSI (Turbomachinery Information) platforms.

Model Configuration Matrix

The part number 330930-065-03-05 specifies a coaxial cable extension assembly designed for impedance-matched coupling. The numerical sequence identifies standard cable length, jacket material, and connector interface configurations compliant with 3300 series transducer system specifications.

Hardware Specifications

TSI System Interconnection Characteristics

Proper integration of this cable extension requires adherence to total system length (TSL) requirements (e.g., 5m or 9m systems). The cable maintains the 50-ohm characteristic impedance required for eddy-current probe excitation. Signal integrity is contingent upon the preservation of the shield-to-drain connection; improper grounding can introduce noise into the rotor dynamics signal path. In multi-probe installations, cable routing must minimize parallel runs with high-power AC lines to prevent induced common-mode noise.

Ordering Info

• Individual 330930-065-03-05 cable extension assembly.

• Includes protective connector dust caps.

• Compliance documentation (CE, UL).

• No additional hardware or terminal blocks included.

Installation Guidelines

• Grounding: Maintain electrical continuity of the coaxial shield to the designated proximitor grounding lug.

• Routing: Use flexible conduit for mechanical protection; avoid sharp-radius bends that exceed the minimum bend radius of the coaxial core.

• Connection: Ensure M12 X 1 threaded connectors are tightened to manufacturer specifications to maintain IP integrity.

• Cable Tie-downs: Secure cables at intervals to mitigate mechanical fatigue from machine-induced vibration.

Frequently Asked Questions

• Q: Can this cable be used with non-Bently Nevada proximity sensors?

  A: Impedance matching is critical for TSI systems. Use with non-standard sensors may alter signal gain and linearity characteristics.

• Q: How does cable length affect calibration?

  A: The 3300 series system is factory calibrated for specific total lengths. Adding this extension requires recalibration of the proximitor to maintain accuracy.

• Q: Is the cable jacket chemical resistant?

  A: The jacket is rated for standard industrial environments; exposure to aggressive chemical solvents requires additional protective conduit.

• Q: What is the maximum voltage rating?

  A: Designed for low-voltage signal transmission (typically < 30 VDC); not intended for power distribution.

• Q: Can the connectors be field-terminated?

  A: Connector termination requires specialized crimping tools and factory-approved processes to ensure shielding integrity and impedance continuity.

• Q: Does this cable exhibit signal loss over distance?

  A: There is inherent signal attenuation in coaxial cables at high frequencies; this is accounted for within the 5m and 9m calibrated system design.

• Q: How do I verify cable continuity?

  A: Use a digital multimeter to verify center conductor continuity and shield resistance-to-ground; ensure no short-circuits exist between conductor and shield.

• Q: Are there specific installation torque requirements?

  A: Connectors should be hand-tightened or torqued to specific manufacturer values to prevent loosening due to high-frequency machine vibration.