The Bently Nevada 330930-060-01-CN, also cataloged as the 330930 Extension Cable, operates as a dedicated hardware component for high-frequency signal transmission within 3300 XL Proximity Transducer Systems. It routes dynamic RF phase and amplitude signals between the proximity probe and the Proximitor sensor without signal degradation.
| Option Code | Designation | Parameter Value / Option Description |
|---|---|---|
| 330930 | Base Model | 3300 XL Standard Extension Cable |
| -060 | Cable Length Option | 6.0 meters (19.7 feet) |
| -01 | Connector & Cable Option | With stainless steel armor, with FEP jacket |
| -CN | Agency Approval Option | Country-specific approvals (China/Asia-Pacific regional compliance) |
| Parameter | Specification |
|---|---|
| Model | 330930-060-01-CN |
| Base Model | 330930 |
| Brand | Bently Nevada |
| Series | 3300 XL |
| Product Type | Standard Extension Cable |
| Origin | USA |
| Cable Length | 6.0 meters (19.7 feet) |
| Armor / Jacket Type | Stainless steel flexible armor with fluorinated ethylene propylene (FEP) outer jacket |
| Agency Approvals | Country-specific (CN option) |
| Calculated Net Weight | 0.27 kg (0.045 kg/m) |
| Shipping Weight | 1.5 kg |
| System Capacitance / Impedance | Matched to 3300 XL Proximitor Sensor and Probe input circuit specifications |
| Operating Temp Range | Standard 3300 XL field rating (-51 to +177 deg C for extended temperature environments) |
The 330930 extension cable maintains tight tolerance control over internal core capacitance and inductance to ensure accurate eddy-current probe scaling across the transducer system. Impedance mismatching across extension cabling alters the RF carrier voltage supplied by the Proximitor sensor, directly affecting the 200 mV/mil (7.87 V/mm) or 100 mV/mil output scale factor. Precise line-length calibration verifies gap voltage validation targeting -10 VDC at nominal center-gap positions, preventing signal attenuation and cross-talk suppression issues in dense machinery monitoring racks monitoring rotor dynamics.
Q: How does cable length selection affect overall 3300 XL proximity transducer system tuning?
A: The total system length (probe plus extension cable) must match the total system length specification of the 3300 XL Proximitor Sensor (typically 5.0 meters or 9.0 meters total). Installing a 6.0-meter extension cable requires pairing with a 1.0-meter or 3.0-meter probe, depending on the targeted 5-meter or 9-meter sensor calibration.
Q: What protection does the option -01 armor configuration provide in severe field environments?
A: The stainless steel flexible armor provides high mechanical crush resistance and tensile strength, while the outer FEP jacket seals the metallic armor against corrosive chemical exposure, moisture ingress, and abrasion.
Q: Why is proper connector tight-torque and insulation critical during installation?
A: Loose or contaminated miniature coaxial connectors introduce series resistance and capacitive degradation, shifting the baseline -10 VDC gap voltage reading and distorting high-frequency vibration signal transmission.
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