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The 330930-040-02-00 functions as a coaxial extension cable within the Bently Nevada 3300 NSv system. This cable links NSv proximity probes to Proximitor drivers across longer distances. Plant engineers depend on it for flexible sensor placement in reciprocating compressors and small turbines.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 330930-040-02-00 |
| Category | 3300 NSv Extension Cable |
| Cable Length | 4.0 m |
| Cable Type | Coaxial, 75 Ω |
| Connector Type | Male and female coaxial |
| Connector Material | Brass, gold-plated contacts |
| Operating Temperature | -35°C to +177°C |
| Weight | Approx. 0.25 kg |
| Outer Diameter | 3.6 mm nominal |
| Bend Radius | 15 mm minimum |
| Shielding | Braided copper, 95% coverage |
| Voltage Rating | 300 V |
| Part Count | Single cable assembly |
Signal Path and Interface Details
The cable carries the high-frequency excitation signal from the driver to the probe coil. Subsequently, it returns the modulated voltage back to the Proximitor module. Its 75 Ω impedance matches the probe and driver for minimal signal loss. Therefore, the 330930-040-02-00 preserves measurement accuracy across its full length.
Installation and System Integration
Operators route the cable through conduit or cable trays near rotating machinery. The braided copper shield blocks electromagnetic interference from nearby motors and drives. Meanwhile, the slim 3.6 mm jacket suits tight routing paths in compact housings. A minimum bend radius of 15 mm prevents conductor damage during installation.
Energy Storage and Power Considerations
This passive cable stores no energy and contains no battery or capacitor. It simply passes the driver excitation signal to the probe. Consequently, power consumption remains zero for the cable itself. System designers only need to account for the Proximitor driver’s current draw.