330930-045-00-CN 4.5m Extension Cable | Bently Nevada

Why Choose the Bently Nevada 330930-045-00-CN Extension Cable?

When your rotating machinery demands precise vibration monitoring, the connection between probe and proximitor must not compromise signal integrity. The 330930-045-00-CN from Bently Nevada delivers exactly that—a factory-terminated, 75 Ω coaxial extension cable built for the 3300 NSv system. With a length of 4.5 meters (14.8 feet), this cable bridges the gap between sensor and monitor while maintaining the electrical characteristics your system needs.

This extension cable uses fluoroethylene propylene (FEP) insulation, which provides excellent thermal stability and dielectric performance. The gold-plated brass connectors ensure low-resistance, corrosion-resistant mating. Whether you are upgrading an existing installation or building a new one, the 330930-045-00-CN is engineered to meet the demanding requirements of industrial vibration monitoring.

Key Features and Technical Specifications

Every parameter of the 330930-045-00-CN is designed to preserve signal fidelity over its full length. Below are the critical specifications you can rely on:

• Cable Length: 4.5 meters (14.8 feet)—the "045" option code.
• Connector Option: "00" means no stainless steel armor, reducing weight and cost where armor is unnecessary.
• Extension Cable Material: 75 Ω coaxial, FEP insulated—provides stable impedance and high-temperature tolerance.
• Operating and Storage Temperature: -51°C to +177°C (-60°F to +351°F)—suitable for extreme industrial environments.
• Shipping Weight: 1.5 kg—light enough for easy handling and installation.
• DC Resistance (Center Conductor): 0.220 Ω/m (0.067 Ω/ft)—minimizes signal loss.
• DC Resistance (Shield): 0.066 Ω/m (0.020 Ω/ft)—ensures effective shielding.
• Capacitance: 69.9 pF/m (21.3 pF/ft) typical—consistent with 75 Ω coaxial design.

One distinctive spec is the FEP insulation, which allows the cable to operate from -51°C to +177°C. This wide range means the cable can be routed through hot zones near turbines or compressors without degradation, a critical factor in many process plants.

Installation and Setup Guidance

Proper installation is essential for accurate vibration readings. When installing the 330930-045-00-CN, follow these guidelines:

• Ensure the total length of the extension cable plus the probe length equals the Proximitor Sensor total length. This is a critical requirement for system calibration.
• Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG), or 0.25 to 0.75 mm² (18 to 23 AWG) with ferrules. A three-conductor shielded triad cable is recommended.
• Keep the distance between the 3300 XL NSv Proximitor Sensor and the monitor to a maximum of 305 meters (1,000 feet) to avoid signal rolloff at high frequencies.
• Handle connectors with care—gold-plated brass is durable but can be damaged by rough handling.

Always consult the Bently Nevada installation manual for torque specifications and routing requirements.

Maintenance and Reliability

Regular inspection of the 330930-045-00-CN ensures long-term reliability. Check connectors for signs of corrosion or damage, and verify that the cable is not pinched or abraded. The FEP insulation resists moisture and chemicals, but physical damage can compromise performance. Periodically test the cable's DC resistance and capacitance to confirm it remains within specification. If you notice any deviation, replace the cable promptly to avoid false vibration readings.

Compatibility and Integration

The 330930-045-00-CN is designed for the Bently Nevada 3300 NSv system. It connects the 3300 NSv probe to the Proximitor Sensor. Ensure that the extension cable length and probe length together match the Proximitor Sensor's total length. This cable is not interchangeable with other Bently Nevada series without verification—always confirm compatibility with your specific monitor model.

Troubleshooting Common Issues

If you experience signal loss or erratic readings, check the following:

• Verify that the extension cable is not damaged—bends or cuts can alter impedance.
• Confirm that the total cable length (probe + extension) matches the Proximitor Sensor's requirement.
• Inspect connectors for dirt or corrosion; clean them with a dry cloth if needed (do not use solvents).
• Ensure field wiring is within the recommended gauge and length limits.

If problems persist, consult the Bently Nevada documentation or contact AutoDCSTech for technical support.

Product Support and Availability

The 330930-045-00-CN is available from AutoDCSTech. As an industrial automation parts supplier, AutoDCSTech stocks genuine Bently Nevada components to minimize downtime. Contact our team for current lead times and pricing. Please verify the current lifecycle status and availability with AutoDCSTech before ordering.