Description
Bently 3301‑30‑08‑00‑02
Technical Specifications: ‑ Cable Overall Length: 8.0 m ‑ Nominal Characteristic Impedance: 75 Ω triaxial ‑ Uniform Capacitance: 69.9 pF/m ‑ Insulation Material: FEP fluoropolymer ‑ Continuous Operating Temperature: ‑52 °C ~ +125 °C ‑ Minimum Static Bend Radius: 25.4 mm ‑ Connector Type: ClickLoc miniature self‑locking coaxial connector ‑ Net Weight: 0.36 kg ‑ Agency Approval: General industrial grade ‑ Signal Bandwidth: 10 Hz‑10 kHz
Functional Features: ‑ Triaxial shielding restrains EMI interference generated by surrounding power equipment ‑ Passive transmission structure, no power‑consuming elements inside cable ‑ Electrically interchangeable with standard 3300‑XL probe and Proximitor assemblies ‑ ClickLoc locking connector resists loosening under continuous machine vibration ‑ Stable capacitance and impedance under full rated working temperature
Application Scenarios: Applied to vibration and displacement monitoring for steam turbine, gas turbine, centrifugal compressor, process pump and large‑scale induced draft fan. Used in thermal power and general petrochemical workshops, works with Bently 3500 rack for machinery protection.
Performance Parameters: ‑ Full‑range scale factor deviation: Less than ±1% ‑ Humidity resistance: Stable under 93% non‑condensing relative humidity ‑ Storage Temperature: ‑55 °C ~ +135 °C ‑ DC core‑to‑core resistance: 1.18 Ω nominal
Material Composition: ‑ Inner conductor: tinned copper ‑ Intermediate insulation: FEP fluoropolymer ‑ Double‑layer shielding: copper braided mesh ‑ Outer jacket: FEP fluoropolymer ‑ Connector shell and contact: gold‑plated brass
Structural Features: Multi‑layer concentric triaxial cable core, no armor layer. ClickLoc self‑locking coaxial connectors installed on both ends. Without FluidLoc sealing assembly.
Working Principle: Passive signal transmission component of eddy‑current transducer system. It maintains 75‑ohm loop impedance matching. Transmits gap‑proportional DC voltage signal output from proximity probe to Proximitor sensor, ensures linear measurement response.
Installation Requirements: ‑ Minimum static bend radius 25.4 mm, sharp bending is prohibited ‑ Maintain 150 mm separation distance from high‑voltage power cables ‑ Pulling force can only bear on connector housing ‑ Connector tightening torque maximum 0.565 N·m ‑ Install connector protector for exposed joints ‑ Combined length of probe cable and extension cable must satisfy Proximitor total‑length setting
Usage Notes: ‑ Forbid field cutting and splicing of cable assembly ‑ Avoid sharp objects scratching outer FEP jacket ‑ Keep away from high‑temperature equipment surfaces ‑ Check connector locking condition during regular maintenance ‑ Carry out continuity and insulation resistance test before commissioning
