Description
Bently 330930‑045‑00‑00
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: 25.4 mm ‑ Connector Type: ClickLoc miniature self‑locking coaxial connector ‑ Net Weight: 0.31 kg ‑ Agency Approval: General industrial grade, no hazardous‑area certification ‑ Signal Bandwidth: 0 Hz‑10 kHz
Functional Features: ‑ High‑performance coaxial shielding restrains external EMI and RFI industrial interference ‑ Pure passive signal transmission design, no built‑in electronic circuit components ‑ Fully electrically interchangeable with standard 3300 XL NSv probe and Proximitor assemblies ‑ Anti‑vibration ClickLoc locking connector eliminates loose contact under sustained machine vibration ‑ Stable electrical parameters within full rated operating temperature range
Application Scenarios: Applied for small‑shaft rotating machinery monitoring, including compact centrifugal compressors, turbo‑expanders, process pumps and high‑speed blowers. Used in thermal power and ordinary petrochemical workshop environments. Matches Bently 3500 monitoring rack for machinery protection, suitable for installation positions with sufficient cable routing protection without crush hazard.
Performance Parameters: ‑ Full‑range scale factor deviation: Less than ±1% ‑ Humidity resistance: Stable performance under 100% non‑condensing relative humidity ‑ Storage Temperature: ‑52 °C ~ +177 °C ‑ DC core‑to‑core resistance: 0.81 Ω nominal
Material Composition: ‑ Inner conductor: tinned copper ‑ Intermediate insulation: FEP fluoropolymer ‑ Single‑layer shielding: copper braided mesh ‑ Outer jacket: FEP fluoropolymer ‑ Connector shell and contact: gold‑plated brass
Structural Features: Multi‑layer concentric coaxial cable core without metal armor layer. ClickLoc self‑locking coaxial connectors are mounted on both cable ends. This model does not include FluidLoc sealing parts.
Working Principle: Passive signal transmission unit for NSv eddy‑current transducer system. It maintains 75‑ohm measuring‑loop impedance matching. Gap‑proportional DC voltage signal generated by proximity probe transmits through coaxial cable to NSv Proximitor sensor, guarantees linear measurement output for displacement and vibration values.
Installation Requirements: ‑ Follow minimum static bend radius 25.4 mm, sharp bending is prohibited ‑ Keep minimum 150 mm clearance from high‑voltage power cables ‑ Tensile load shall only bear on connector housing, cable jacket cannot sustain pulling force ‑ Connector tightening torque maximum 0.565 N·m ‑ Install external connector protector for exposed connection joints ‑ Combined length of probe integral cable and extension cable must satisfy total‑length configuration requirement of matched NSv Proximitor sensor
Usage Notes: ‑ Field cutting and splicing of cable assembly are strictly forbidden ‑ Prevent sharp components scratching FEP outer jacket surface ‑ Avoid long‑term direct contact with over‑heated equipment surfaces ‑ Check connector locking state during periodic maintenance work ‑ Execute continuity and insulation resistance test before putting system into service
