330130-070-00-00 Bently Nevada 7m Standard Proximity Cable

Product Overview

The 330130-070-00-00 is a genuine 7.0-meter standard extension cable designed for the Bently Nevada 3300 XL 8mm Proximity Transducer System. Weighing a lightweight 34 g/m for a total net mass of 0.204 kg, this high-performance coaxial cable transmits critical eddy current frequency signals from proximity probes to Proximitor Sensors without signal degradation. It forms a key link in continuous machinery protection systems, tracking shaft vibration, radial position, and speed on major industrial assets including power generation turbines, compressor stations, and large motor assemblies.

Core Technical Advantages

• Detailed Suffix Logic Breakdown:
  • -070: Sets a precise physical and electrical loop length of 7.0 meters (22.9 feet).
  • -00 (First): Configures the standard, lightweight coaxial cable profile without metal armoring, keeping the weight low.
  • -00 (Second): Dictates an uncertified, general-purpose hardware build where specialized hazardous area agency approvals are not required.
• Matched 50-Ohm Impedance: Engineered to eliminate signal reflections and baseline calibration drift across the entire 2 mm (80 mils) linear measuring spectrum.
• Streamlined Cable Routing: The non-armored design drastically reduces weight and cross-sectional footprint, making it ideal for clean installations inside dedicated panel conduits or junction boxes.
• Patented Structural Upgrades: Fully compatible with Bently Nevada’s high-strength CableLoc and TipLoc design standards, ensuring high pull-strength and mechanical integrity at termination joints.

Technical Specifications

Installation & Maintenance Guide

Safe Power and Isolation

Always verify the complete isolation of power to the monitoring rack before connecting or disconnecting the extension cable. Handling active proximity sensor coaxial interfaces can introduce voltage spikes, risking damage to sensitive down-loop Proximitor circuitry.

Bend Radius Management

Avoid forming sharp 90-degree kinks or tightly packing the cable. Maintain a minimum static bend radius to safeguard the internal dielectric core from crushing, which could shift cable capacitance and result in false vibration readings.

Strain Relief and Environmental Routing

Employ proper mechanical strain relief clamps at conduit entries to prevent pulling tension on terminal connections. Route the standard jacket clear of raw heat paths and avoid areas exposed to heavy turbine oil unless rigid, oil-tight connector protectors are installed over the probe joints.

Engineering Advantages

• Universal System Fit: Integrates directly with all standard 3300 XL 8mm proximity sensors, transmitters, and TSI vibration monitoring racks without recalculation.
• Stable Temperature Profile: Designed to maintain strict electrical tolerances across a wide industrial thermal band of -40°C to +120°C, avoiding temperature-induced data drift.
• Reduced Structural Load Profile: Weighing only 0.204 kg for the entire 7-meter run, this non-armored jacket profile minimizes mechanical strain and hanging fatigue on junction box connection rails.

Technical FAQs

Q1: What does the double-zero "-00-00" suffix stand for on this model?
A1: The first "00" specifies a standard, non-armored cable body. The second "00" signifies a standard commercial version that skips optional hazardous area certifications (like ATEX/IECEx) for cost-effective use in non-explosive locations.

Q2: Can I cut or splice this 7.0m cable if it is too long for my layout?
A2: No. Bently Nevada proximity instrumentation relies on a fixed, pre-calibrated overall system length (typically 5.0m or 9.0m). Cutting the cable permanently alters the electrical resistance and capacitance, rendering the transducer system uncalibrated.

Q3: What are the included connector protectors used for?
A3: The included protectors insulate the coaxial connection point between the probe lead and the extension cable. They protect the interface from mechanical pulling forces, dust ingress, and accidental ground contact inside machinery housings.