Product Overview
The Bently Nevada 330930-065-11-00 is a 3300 NSv Extension Cable engineered for reliable signal transmission in industrial vibration monitoring systems. This 6.5-meter (21.3 feet) cable connects a 3300 NSv probe to the Proximitor Sensor, ensuring accurate rotor vibration and position measurements. With a 75Ω coaxial construction and FluidLoc stainless steel armor, the 330930-065-11-00 withstands harsh environments while maintaining signal integrity.
Manufactured in the U.S.A., this extension cable is a critical component for machinery protection in rotating equipment such as turbines, compressors, and pumps. Its robust design minimizes downtime and enhances system reliability.
Technical Specifications
The 330930-065-11-00 is built to stringent industrial standards. Below are the key parameters you can rely on:
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Cable Length: 6.5 meters (21.3 feet) – option 065
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Connector and Cable Option: 11 – FluidLoc cable with stainless steel armor, without FEP jacket, with connector protector
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Agency Approval Option: 00 – Not required
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Extension Cable Material: 75Ω coaxial, fluoroethylene propylene (FEP) insulated
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Operating and Storage Temperature: -52°C to +177°C (-62°F to +351°F)
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Shipping Weight: 1.5 kg
Electrical Characteristics
| Parameter |
Value |
| DC resistance – center conductor |
0.220 Ω/m (0.067 Ω/ft) |
| DC resistance – shield |
0.066 Ω/m (0.020 Ω/ft) |
| Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
Mechanical and Environmental
| Parameter |
Value |
| Tensile strength (max rated) |
220 N (50 lb) – probe case to probe lead; 220 N (50 lb) – probe lead to extension cable connectors; 220 N (50 lb) – probe case to stainless steel armor |
| Connector material |
Gold-plated brass |
| Extension cable armor (optional) |
Flexible AISI 302 SST with/without FEP outer jacket |
Field Wiring and Installation
Proper installation is crucial for optimal performance. The extension cable length plus the probe length must equal the Proximitor Sensor total length. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, or 0.25 to 0.75 mm² (18 to 23 AWG) with ferrules. A three-conductor shielded triad cable is recommended, with a maximum length of 305 meters (1,000 feet) between the 3300 XL NSv Proximitor Sensor and the monitor.
Longer field wiring can cause signal rolloff at high frequencies; refer to the frequency response graphs (Figure 16 and Figure 17) for guidance. The linear range of the system is 1.5 mm (60 mils), starting at approximately 0.25 mm (10 mils) from the target, with a recommended gap setting of 1.0 mm (40 mils).
Applications
The Bently Nevada 330930-065-11-00 is ideal for critical rotating machinery monitoring. Typical applications include:
- Turbo-machinery vibration monitoring in power generation and oil & gas.
- Shaft vibration and position measurement in compressors and pumps.
- Predictive maintenance programs where reliable signal transmission is essential.
With its rugged construction and precise electrical specifications, the 330930-065-11-00 ensures dependable data for condition monitoring systems.
Maintenance and Reliability
Regular inspection of the cable and connectors is recommended to prevent signal degradation. Check for physical damage, especially at connection points. The stainless steel armor provides excellent protection against mechanical stress and environmental corrosion, extending service life and reducing replacement frequency. This durability translates into lower total cost of ownership.
Buying Guide
Before purchasing, verify that the cable length (6.5 m) meets your system requirements and that the connector option matches your probe and Proximitor sensor. Ensure the operating temperature range fits your installation environment. PLC Source PRO offers this genuine Bently Nevada 330930-065-11-00 with fast shipping and competitive pricing.