Product Overview

The 330730-040-00-05 is a specialized coaxial extension cable engineered for the Bently Nevada 3300 XL 11 mm Proximity Transducer System. This component serves as the critical electrical link between an 11 mm non-contacting probe and a Proximitor sensor. Unlike standard 8 mm systems, the 11 mm series is designed for heavy-duty industrial assets requiring a broader linear measurement range. This cable is specifically designed to maintain the precise 75-ohm impedance and low-loss signal characteristics necessary to transmit complex eddy current data without attenuation. It ensures that displacement and vibration information from large-frame rotating machinery is delivered with high fidelity to the machinery protection system.

Technical Configuration and Design

This model is defined by a specific set of hardware parameters designed for high-reliability industrial service:

• Cable Type: High-performance fluoropolymer-insulated coaxial cable.

• Length: 4.0 Meters (approx. 13.1 feet).

• Armor Option: Non-armored (Standard) for easier routing through conduits and trays.

• Connector Protection: Features factory-installed connector protectors (00 option) to shield the coaxial junction from fluid ingress and contamination.

• Agency Approvals: Multi-certified for hazardous environments including ATEX, IECEx, and CSA (05 option).

• Temperature Rating: Engineered to operate reliably in ambient temperatures ranging from -51°C to +177°C (-60°F to +351°F).

Engineering for Large-Scale Asset Protection

The 330730-040-00-05 extension cable is built to sustain the rigors of Turbine Supervisory Instrumentation (TSI) environments:

• Extended Range Accuracy: Supports the 11 mm system's 4.0 mm (160 mil) linear range, which is nearly double that of standard proximity systems, essential for monitoring large rotors with significant thermal expansion or axial float.

• Signal Integrity: The gold-plated ClickLoc connectors provide a secure, vibration-resistant electrical path that prevents signal drift or noise interference.

• Environmental Resistance: The FEP (Fluorinated Ethylene Propylene) jacket provides superior resistance to corrosive chemicals, lubricating oils, and moisture common in power plants and refineries.

• RFI/EMI Shielding: Advanced cable shielding preserves measurement accuracy even when routed through electrically noisy environments near high-voltage motors and switchgear.

Primary Industrial Applications

As a core component of the 3300 XL transducer family, this 4.0-meter cable is vital for:

• Large Steam and Gas Turbines: Bridging the gap for thrust position and radial vibration monitoring.

• Hydroelectric Power Units: Tracking shaft centerline motion and rotor dynamics on large-diameter generators.

• Heavy-Duty Process Compressors: Ensuring continuous signal transmission for axial displacement measurements in petrochemical facilities.

• Monitoring System Integration: Fully compatible with Bently Nevada 3500 Series racks and 2300 series monitors for comprehensive asset health management.