Bently Nevada 330130-080-00-00 3300XL Proximity Extension Cable Product Specification
330130-080-00-00 is a factory-calibrated extension cable belonging to Bently Nevada’s 3300XL eddy-current proximity sensor system, designed to connect 3300XL proximity probe and matching proximitor transducer for non-contact shaft vibration, axial displacement and Keyphasor rotational speed measurement on critical rotating machinery including steam turbines, centrifugal compressors, large generator sets and industrial blowers in power, petrochemical and metallurgical industries. This fully pre-assembled cable is manufactured with fixed total calibrated length to match the whole sensor loop, ensuring consistent electrical linearity of the proximity monitoring circuit after field installation. Every finished cable passes factory capacitance matching test, continuity inspection and sealing performance verification before delivery to eliminate measuring deviation caused by mismatched electrical parameters between probe and proximitor. It serves as the intermediate signal transmission medium to transfer high-frequency eddy-current signals collected by the installed probe to proximitor for signal conversion and subsequent data upload to 3500 or legacy 3300 rack monitoring modules, DCS and site PLC control systems.
Description
Bently Nevada 330130-080-00-00 3300XL Proximity Extension Cable Product Specification
1. Product Overview
330130-080-00-00 is a factory-calibrated extension cable belonging to Bently Nevada’s 3300XL eddy-current proximity sensor system, designed to connect 3300XL proximity probe and matching proximitor transducer for non-contact shaft vibration, axial displacement and Keyphasor rotational speed measurement on critical rotating machinery including steam turbines, centrifugal compressors, large generator sets and industrial blowers in power, petrochemical and metallurgical industries. This fully pre-assembled cable is manufactured with fixed total calibrated length to match the whole sensor loop, ensuring consistent electrical linearity of the proximity monitoring circuit after field installation. Every finished cable passes factory capacitance matching test, continuity inspection and sealing performance verification before delivery to eliminate measuring deviation caused by mismatched electrical parameters between probe and proximitor. It serves as the intermediate signal transmission medium to transfer high-frequency eddy-current signals collected by the installed probe to proximitor for signal conversion and subsequent data upload to 3500 or legacy 3300 rack monitoring modules, DCS and site PLC control systems.
2. Complete Part Number Code Definition
The four-section part number follows Bently standard coding rules with independent parameter definition for each segment:The first five-digit code 330130 represents the core series designation of standard extension cable exclusively developed for full-range 3300XL proximity probe supporting system.The second two-digit group 080 specifies the factory fixed overall calibrated cable length at 8.0 meters, which is the total valid electrical length counted in the full sensor system calibration between probe tip and proximitor internal circuit.The third code 00 stands for standard cable outer jacket configuration without customized armored metal sheath, adopting original factory standard insulating outer covering design.The final segment 00 defines default connector layout with standard original factory integral stainless steel threaded connectors at both cable terminals, no modified plug or customized terminal structure applied during production. All coded parameters are fixed at factory, random length alteration or connector replacement will break the pre-calibrated capacitance matching and result in inaccurate gap and vibration measurement data.
3. Material and Mechanical Specification
The internal core wire is made of high-purity oxygen-free copper with multi-strand twisted structure to reduce high-frequency signal attenuation and electromagnetic interference during long-distance signal transmission. Intermediate insulating layer uses modified fluoropolymer insulation material featuring outstanding oil resistance, chemical corrosion resistance and stable dielectric constant under variable temperature fluctuation, maintaining fixed capacitance value required by 3300XL sensor system. The outer protective jacket is composed of high-performance thermoplastic elastomer, resisting abrasion from on-site mechanical friction, lubricating oil mist and damp industrial ambient, achieving reliable protection against dust and splash pollution. Both end terminals adopt precision CNC-machined stainless steel threaded connectors with built-in elastic sealing rings to prevent oil, water vapor and fine dust from penetrating into internal wiring at connection points with probe and proximitor. The whole cable maintains flexible bending property for convenient routing along equipment casing and cable trench without insulation cracking under normal field installation bending radius.
4. Electrical Matching & Working Environmental Parameters
This extension cable is exclusively matched with standard 3300XL 8mm proximity probe and corresponding 330180 series proximitor transducer which operates on rated negative DC power supply ranging from -17.5VDC to -26VDC. The full measuring loop formed by probe plus this 8-meter extension cable and proximitor keeps factory preset standard sensitivity of 7.87V/mm (200mV/mil), with effective working frequency range covering 0Hz to 10kHz to satisfy static axial displacement tracking and dynamic high-speed rotor radial vibration collection requirement.
Permitted continuous operating ambient temperature spans from -40℃ to +125℃ to adapt low-temperature outdoor layout and high-temperature installation nearby hot turbine and compressor bearing housings; recommended dry storage temperature ranges from -55℃ to +95℃ under non-condensing storage environment. Applicable working relative humidity is controlled within 5%RH~95%RH without internal condensation, avoiding insulation aging and core wire short circuit induced by moisture accumulation inside cable structure. The cable can endure regular industrial ambient vibration from 10Hz to 60Hz, while long-term deployment in environment with strong corrosive chemical gas and continuous high-temperature steam immersion is prohibited to extend its service life.
5. Application Scope and On-site Maintenance Guidance
330130-080-00-00 extension cables are widely equipped in TSI machinery protection systems of thermal power plants, oil refining factories and heavy metallurgy workshops, completing signal transmission for radial vibration, thrust displacement and Keyphasor speed probes mounted on large rotating equipment bearing housings to support real-time machinery condition monitoring and safety interlock protection.
During routine field maintenance, inspectors need periodic visual check of connector tightness and outer jacket integrity to avoid signal loss caused by loose connection or jacket breakage leading to oil infiltration inside cable; spare replacement must select extension cable with identical full part number specification, mismatched calibrated length will change total loop capacitance and directly cause measuring zero drift and wrong monitoring values. Original new and qualified refurbished cables both complete full electrical parameter re-calibration and sealing inspection per original factory standards before outgoing shipment to guarantee interchangeability during on-site equipment overhaul and spare part replacement.
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