Description
The BENTLY 330130-080-00-00 is an industrial-grade, high-reliability 8mm proximity extension cable from the Bently Nevada 3300 XL series. This cable is a critical connection component in eddy current proximity transducer loops, bridging the gap between the proximity probe tip and the Proximitor® sensor. It transmits raw high-frequency radio frequency (RF) signals with minimal attenuation, allowing the system to perform high-precision, non-contact measurements of shaft vibration, axial position, and oil film thickness on critical rotating machinery.
Product Datasheet & Specifications
- Manufacturer: Bently Nevada (Baker Hughes)
- Part Number: 330130-080-00-00
- System Family: 3300 XL 8mm Proximity Transducer System
- Cable Length: 8.0 meters (approximately 26.2 feet)
- Connector Protective Options: 00 (Standard coaxial connectors, without fluid-tight armor or protective boot)
- Agency Approvals Option: 00 (Standard, non-hazardous area certifications or basic global approvals)
- Cable Material: Extruded Fluorinated Ethylene Propylene (FEP) insulated coaxial cable
- System Total Length Compatibility: Designed to match a 1-meter probe to achieve a standard 9-meter system loop
- Approximate Weight: 280 grams (0.28 kg)
- Country of Origin: United States (USA)
- Operational Temperature Range: -51°C to +177°C (-60°F to +350°F) under continuous runtime
BENTLY 330130-080-00-00
Key Application Fields
- Steam & Gas Turbines: Extends probe connections to track high-speed shaft radial vibration profiles inside machine housings.
- Centrifugal Compressors: Critical link in safety loops monitoring axial thrust and rotor positioning under high load conditions.
- Industrial Turbo-Blowers: Deployed in process air infrastructure to relay continuous mechanical clearance data back to control frames.
- Large Water Pumps: Used in municipal utilities and hydro installations to protect large pump bearings from unexpected runout.
- Gearbox Maintenance Arrays: Monitors input and output shaft misalignment and structural looseness in complex multi-stage gear trains.
Product Instructions & Guidelines
- Total System Length Matching: Ensure the extension cable length (8.0m) matches your specific 3300 XL probe and Proximitor sensor configuration. Combining mismatched components will throw off calibration curves and introduce measurement errors.
- Connector Handling: Keep all miniature coaxial connectors clean, dry, and free of oil or grease during installation. Use a dedicated connector torque wrench to tighten the threaded connections to the recommended target to avoid loose threads.
- Minimum Bend Radius: Do not bend or crimp the coaxial cable beyond its minimum allowed physical radius (typically 25.4 mm or 1 inch). Sharp turns can change the line impedance and degrade signal transmission quality.
- Conduit Routing: Route the extension cable inside dedicated metal conduits or flexible junction trunks to safeguard the FEP jacket against external mechanical cuts, flying debris, and ambient weld splatter.
- Troubleshooting Inspection: Periodically inspect the cable exterior for thermal discoloration or structural flattening. Use an insulation resistance tester to verify conductor continuity and shield insulation performance if you notice signal drift or intermitent errors.
Q&A – Frequently Asked Questions
- Q: What does the suffix breakdown “-080-00-00” mean for this part code?
- A: The “-080” designates a standard cable length of exactly 8.0 meters. The first “-00” specifies that it has standard bare connectors without armored outer sleeves, and the second “-00” indicates standard approval options.
- Q: Can I splice or cut this extension cable if it is too long for my cabinet run?
- A: No, proximity sensor cables must never be cut or spliced. The precise physical and electrical length of the cable is an integrated part of the tuned oscillator circuit. Altering its length will invalidate the system calibration.
- Q: How do I protect the delicate coaxial connections from oil mist and water inside machine blocks?
- A: Since this model (-00) features standard connectors, you should apply dedicated silicone self-fusing tape or use external connector protector kits (such as Bently Nevada’s fluid-tight boot assemblies) around the mating interfaces.
- Q: Is this 3300 XL extension cable backward compatible with older 3300 series 8mm hardware?
- A: Yes. The 3300 XL 8mm components are engineered to be fully compatible with standard 3300 series 8mm probes and Proximitor sensors, though upgrading the entire loop provides better thermal stability.
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