Bently Nevada 330930-045-01-00 Extension Cable

Bently Nevada 330930‑045‑01‑00 3300 NSv Extension Cable

The Bently Nevada 330930‑045‑01‑00, also cataloged as the 330930‑045‑00‑00 extension cable, operates as a dedicated coaxial link for NSv‑series eddy‑current probe systems within 3300‑class machinery protection networks. It provides defined gap‑voltage transmission, controlled capacitance, and armored mechanical protection for rotor‑dynamic measurement circuits.

Suffix Breakdown & Model Matrix

• 045: Cable length option = 4.5 m (21.3 ft)
• 01: Connector and cable option = stainless‑steel armor with FEP jacket
• 00: Agency approval option = not required

Hardware Specifications

Eddy‑Current Probe Scaling and Gap‑Voltage Behavior

As part of the NSv proximity transducer system, the extension cable maintains the calibrated eddy‑current probe scaling required for rotor‑dynamic measurements. The controlled coaxial impedance preserves the −10 VDC nominal gap‑voltage target used for probe linearization. Stainless‑steel armor and FEP insulation minimize cross‑talk by stabilizing shield continuity and reducing electromagnetic coupling along long cable runs.

Frequently Asked Questions

Q: Can the extension cable be field‑cut or re‑terminated? A: No. NSv‑series extension cables are factory‑terminated to preserve impedance, capacitance, and probe calibration.

Q: Does the stainless‑steel armor affect signal quality? A: The armor provides mechanical protection without altering coaxial impedance. FEP insulation maintains stable capacitance across the full temperature range.

Q: How does cable length influence probe linearity? A: NSv systems are calibrated for specific cable lengths. Using the 045 (4.5 m) option preserves the intended transfer function and gap‑voltage scaling.

Field Installation Guidelines

• Route the cable away from high‑frequency drives or switching conductors to reduce induced noise.
• Maintain continuous shield bonding at designated termination points; avoid multiple ground references.
• Prevent sharp bends that may stress the stainless‑steel armor or alter coaxial geometry.
• Verify connector seating before energizing the transducer system.
• Avoid mixing NSv cabling with standard 3300 XL cabling to prevent mismatch in impedance and scaling.