Product Overview
When precise vibration monitoring is critical, the Bently Nevada 330930-045-03-05 3300 NSv Extension Cable ensures reliable signal transmission between the probe and Proximitor Sensor. This 4.5-meter (14.8 feet) extension cable is engineered for demanding industrial environments, featuring 75 Ω coaxial construction with fluoroethylene propylene (FEP) insulation for superior performance.
The 330930-045-03-05 comes without stainless steel armor but includes a connector protector, and carries multiple agency approvals for global use. Manufactured in the U.S.A., this extension cable is an essential component for accurate machinery condition monitoring.
Technical Specifications
| Parameter |
Value |
| Cable Length |
4.5 meters (14.8 feet) |
| Connector Option |
Without stainless steel armor, with connector protector |
| Agency Approval |
Multiple Approvals |
| Extension Cable Material |
75 Ω coaxial, FEP insulated |
| Operating & Storage Temperature |
-51°C to +177°C (-60°F to +351°F) |
| Shipping Weight |
1.5 kg |
| 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 |
| Field Wiring |
0.2 to 1.5 mm² (16 to 24 AWG); with ferrules 0.25 to 0.75 mm² (18 to 23 AWG). Recommend three-conductor shielded triad cable. Max length 305 m (1,000 ft) between Proximitor Sensor and monitor. |
| Linear Range |
1.5 mm (60 mils); from approximately 0.25 mm to 1.75 mm (10 to 70 mils) (−1 to −13 Vdc) |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Connector Material |
Gold-plated brass |
Key Features & Benefits
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Precise Signal Integrity: The 75 Ω coaxial FEP insulation maintains signal quality over the 4.5-meter length, minimizing interference and ensuring accurate vibration data.
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Wide Temperature Tolerance: Operates reliably from -51°C to +177°C, suitable for extreme industrial environments.
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Multiple Approvals: The 05 approval option ensures compliance with international standards, simplifying global deployment.
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Durable Connectors: Gold-plated brass connectors resist corrosion and maintain a secure connection.
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Easy Installation: The connector protector and flexible cable design facilitate routing and connection.
Installation & Setup Guidance
For optimal performance, ensure the total length of the extension cable and the probe equals the Proximitor Sensor total length. When routing the 330930-045-03-05, avoid sharp bends and excessive tension. Use the recommended three-conductor shielded triad cable for field wiring, and keep field wiring length within 305 meters (1,000 feet) to prevent signal rolloff. Secure connectors hand-tight, then use a wrench for a firm seat—do not overtighten. Verify the gap setting to 1.0 mm (40 mils) after installation.
Maintenance & Reliability
Routine inspection of the extension cable is essential for long-term reliability. Check connectors for signs of wear or corrosion, and ensure the cable jacket remains intact. The FEP insulation resists harsh chemicals and high temperatures, but physical damage can compromise signal integrity. Periodically test DC resistance and capacitance against the specified values to detect degradation. By maintaining the 330930-045-03-05, you extend the service life of your monitoring system and reduce unplanned downtime.
Selection Guide & Purchasing Advice
When selecting an extension cable, confirm the required length and connector options. The 330930-045-03-05 is specifically configured for 4.5-meter runs without armor—verify this matches your installation. For armored versions, consult the optional flexible AISI 302 SST armor. PLC Source PRO offers genuine Bently Nevada components, ensuring compatibility and performance. Before ordering, verify your Proximitor Sensor model to guarantee a proper match.