Description
Bently 330930‑045‑01‑05
Technical Specifications: ‑ Cable Overall Length: 4.5 m ‑ Nominal Characteristic Impedance: 75 Ω coaxial ‑ Uniform Capacitance: 69.9 pF/m ‑ Insulation Material: FEP fluoropolymer ‑ Continuous Operating Temperature: ‑52 °C ~ +177 °C ‑ Minimum Static Bend Radius: 38.1 mm ‑ Connector Type: ClickLoc miniature self‑locking coaxial connector ‑ Armor Material: AISI 302 stainless‑steel spiral armor ‑ Net Weight: 0.43 kg ‑ Agency Approval: ATEX, IECEx, CSA hazardous‑area certification ‑ Signal Bandwidth: 0 Hz‑10 kHz
Functional Features: ‑ Full set of international hazardous‑area certifications for explosive‑atmosphere installation ‑ Stainless‑steel spiral armor resists impact, crush and abrasion damage in harsh field conditions ‑ Coaxial shielding suppresses EMI and RFI interference generated by surrounding high‑power equipment ‑ Pure passive transmission assembly without internal power‑consuming electronic components ‑ Electrically interchangeable with all qualified 3300 XL NSv probes and Proximitor sensors ‑ Vibration‑resistant ClickLoc locking connector avoids loose contact under continuous machine vibration
Application Scenarios: Serves compact centrifugal compressors, turbo‑expanders and process pumps inside petrochemical refineries, offshore platforms and natural‑gas processing plants with explosive classified zones. Cooperates with Bently 3500 monitoring rack to realize machinery protection for locations with both mechanical damage risk and hazardous‑area requirements.
Performance Parameters: ‑ Full‑range scale factor deviation: Less than ±1% ‑ Humidity resistance: Stable under 100% non‑condensing relative humidity ‑ Storage Temperature: ‑52 °C ~ +177 °C ‑ DC core‑to‑core resistance: 0.81 Ω nominal ‑ Armor withstands rated radial crush load without permanent deformation
Material Composition: ‑ Inner conductor: tinned copper ‑ Intermediate insulation: FEP fluoropolymer ‑ Single‑layer shielding: copper braided mesh ‑ Outer jacket: FEP fluoropolymer ‑ Armor: AISI 302 stainless‑steel spiral strip ‑ Connector shell and contact: gold‑plated brass ‑ Sealing ring: fluororubber
Structural Features: Concentric coaxial inner core wrapped with continuous spiral stainless‑steel armor. Both cable ends install ClickLoc self‑locking coaxial connectors. Armor terminates at short transition section near connectors. This unit does not adopt FluidLoc sealing construction.
Working Principle: Passive signal transmission component of NSv eddy‑current transducer system. Armor only provides mechanical protection and will not change electrical characteristics. It maintains 75‑ohm loop impedance matching. Displacement‑proportional DC voltage signal output from proximity probe transmits through coaxial cable to NSv Proximitor sensor, guarantees linear gap‑voltage measurement output.
Installation Requirements: ‑ Respect armored‑cable minimum static bend radius 38.1 mm, sharp bending is forbidden ‑ Maintain minimum 150 mm separation distance from high‑voltage power cables ‑ Tensile pulling force shall only act on connector housing ‑ Connector tightening torque maximum 0.565 N·m ‑ Fit external connector protector for exposed connection joints ‑ Combined length of probe integral cable and extension cable must satisfy NSv Proximitor total‑length setting ‑ All field installation activities must comply with local hazardous‑area wiring specifications
Usage Notes: ‑ On‑site cutting or splicing of armored cable assembly is strictly prohibited ‑ Prevent armor outer surface from scratch caused by sharp metal components ‑ Inspect armor integrity and connector locking condition during shutdown maintenance ‑ Avoid long‑time direct contact with strong corrosive chemical medium ‑ Complete continuity and insulation resistance test before system commissioning within hazardous classified zones
