Introduction to the 330930-045-02-05
When machine vibration threatens uptime, the 330930-045-02-05 from Bently Nevada provides a dependable link between the probe and proximitor. This 3300 NSv extension cable is built for harsh industrial environments, offering a robust solution for continuous condition monitoring.

Key Features and Technical Specifications
The 330930-045-02-05 is engineered with precision. Its 4.5-meter (14.8 feet) length matches common installation requirements. The cable uses 75 Ω coaxial construction with fluoroethylene propylene (FEP) insulation, ensuring signal integrity over its entire run.
- Cable length: 4.5 meters (14.8 feet)
- Connector option: With stainless steel armor, without FEP jacket
- Agency approvals: Multiple approvals
- Operating temperature: -51°C to +177°C (-60°F to +351°F)
- Shipping weight: 1.5 kg
- Center conductor DC resistance: 0.220 Ω/m
- Shield DC resistance: 0.066 Ω/m
- Capacitance: 69.9 pF/m typical
The stainless steel armor protects the cable from mechanical damage, making it suitable for demanding field installations. The gold-plated brass connectors ensure a secure, corrosion-resistant connection.
Applications and Use Cases
The 330930-045-02-05 is used in rotating machinery monitoring, including turbines, compressors, and pumps. It connects a 3300 NSv probe to a proximitor sensor, transmitting vibration and position signals accurately. This cable is ideal for new installations or as a replacement in existing Bently Nevada systems.

Installation and Setup
Proper installation is critical for reliable measurements. Ensure the extension cable length and probe length, when added together, equal the Proximitor Sensor total length. This requirement is essential for accurate readings.
Field wiring should use a three-conductor shielded triad cable. The maximum length between the 3300 XL NSv Proximitor Sensor and the monitor is 305 meters (1,000 feet). For longer runs, refer to the frequency response graphs (Figure 16 and Figure 17) to understand signal rolloff at high frequencies.
Maintenance and Reliability
The stainless steel armor and FEP insulation provide excellent resistance to moisture, chemicals, and extreme temperatures. This design reduces the need for frequent maintenance. However, periodic inspection of the cable and connectors is recommended to ensure continued performance.
Check for any signs of wear, especially at connection points. Verify that the cable is not subjected to excessive bending or tensile stress beyond its rated 220 N (50 lb) limit. Following these practices helps extend service life and prevent unexpected failures.
Troubleshooting Common Issues
Signal loss or intermittent readings often trace back to cable issues. Inspect connectors for damage or corrosion. Verify that the cable length matches the required specification. If the problem persists, test the cable continuity and insulation resistance.
Environmental factors such as extreme temperatures or chemical exposure can degrade cable performance. The 330930-045-02-05 is rated for -51°C to +177°C, but always confirm the operating environment stays within these limits.
Compatibility and Integration
The 330930-045-02-05 is part of the Bently Nevada 3300 NSv system. It is designed to work with 3300 NSv Proximitor Sensors and compatible monitors. Ensure your system uses the same connector and cable options for seamless integration.
Product Support and Availability
The 330930-045-02-05 is available from AutoDCSTech. Contact us for current stock and lead times. We are an independent supplier of industrial automation parts, ready to assist with your Bently Nevada needs.
Availability & Condition at AutoDCSTech
| Part Number | 330930-045-02-05 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
