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The Bently Nevada 330930-045-00-05 is a 4.5-meter extension cable engineered for the 3300 NSv (Near-shielded) Proximity Transducer System. This component serves as the vital link between a 3300 NSv proximity probe and the 3300 XL NSv Proximitor Sensor, facilitating precise vibration and position monitoring in industrial rotating machinery.
Features
- Designed for tight installation requirements, such as counterbore, side-view, or rearview constraints.
- Constructed as a 75 Ohm coaxial cable with durable FEP insulation.
- Equipped with gold-plated brass ClickLoc connectors to ensure high-integrity, corrosion-resistant signal transmission.
- Compatible with legacy 3300 RAM transducer systems for simplified maintenance and upgrades.
- Features an average scale factor of 7.87 V/mm (200 mV/mil).
- Unarmored design without additional FEP outer jacket or connector protectors.
Applications
- Radial vibration and axial thrust monitoring for fluid-filmed bearing machines.
- Performance monitoring for centrifugal, refrigeration, and process gas compressors.
- High-speed turbo expander vibration analysis.
- Clearance monitoring in electric motors and generators with restricted internal space.
- Vibration measurement in centrifugal pumps and industrial fans.
Technical Specifications
| Model Number | 330930-045-00-05 |
| Cable Length | 4.5 meters (14.8 feet) |
| Cable Type | 75 Ohm Coaxial |
| Insulation Material | FEP (Fluoroethylene Propylene) |
| Operating Temperature | -51 degC to +177 degC |
| Capacitance | 69.9 pF/m (21.3 pF/ft) typical |
| Connector Type | ClickLoc (Gold-plated brass) |
Installation Guidelines
- System Length Matching: Ensure the total system length (probe integral cable + extension cable) matches the Proximitor Sensor calibration, typically 5.0 meters or 7.0 meters.
- Bending Radius: Maintain a minimum bend radius of 25.4 mm (1.0 inch) to prevent cable damage.
- Cable Routing: Avoid overtightening cable ties; compression of the coaxial dielectric can induce signal noise or "ghost" vibration readings.
- Environment: Suitable for hazardous area applications; verify all local electrical codes and agency approval requirements during installation.
FAQ
What is the function of the 330930-045-00-05 extension cable?
This cable transmits the high-frequency RF signal between the 3300 NSv Proximitor Sensor and the proximity probe, allowing the system to measure the gap between the probe tip and the target surface for vibration and position monitoring.
Can this cable be used with any Bently Nevada probe?
It is specifically designed for the 3300 NSv (Near-shielded) Proximity Transducer System. Always confirm compatibility with your existing probe and Proximitor sensor models to ensure the system scale factor remains accurate.
How should I manage the total system length?
The total length of the probe cable and the extension cable must match the calibrated length of the Proximitor. For this 4.5m extension cable, a 0.5m probe is typically used to achieve a standard 5.0m total system length.
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