Description
Bently 330904‑05‑14‑05‑02‑00
Technical Specifications:
- Sensing Principle: Eddy‑current non‑contact inductive sensing
- Thread Specification: M10×1 metric thread
- Unthreaded Tip Length: 0.5 inch
- Probe Overall Case Length: 1.4 inch
- Integral Cable Length: 5 meters
- Connector Type: ClickLoc miniature gold‑plated coaxial connector
- Nominal Sensitivity: 7.87 V/mm (200 mV/mil), tolerance ±5%
- Linear Measurement Range: 0‑2 mm
- Frequency Response: 0 Hz to 10 kHz (-3 dB)
- Operating Probe Temperature: ‑55 °C ~ +175 °C
- Storage Temperature: ‑60 °C ~ +185 °C
- Insulation Resistance: ≥500 MΩ at 500 VDC
- Shock Resistance: 1000 g peak half‑sine pulse
- Continuous Vibration Rating: 30 g peak, 55 Hz‑2000 Hz
- Ingress Protection Rating: Hermetically sealed IP68 Functional Features:
- M10×1 metric mounting‑thread fits European‑standard metric‑thread probe‑mount fixtures, simplifies field mechanical‑installation work for metric‑design equipment.
- Short 0.5‑inch unthreaded‑tip dimension adapts to narrow installation‑cavity space inside compact bearing housings.
- Laser‑welded full hermetic‑sealing structure prevents machine‑oil, steam and moisture from intruding internal coil chamber.
- Gold‑plated ClickLoc miniature coaxial connector achieves finger‑tight locking connection, anti‑loosening under long‑time operational mechanical‑vibration.
- Factory‑pre‑assembled 5‑meter triaxial‑cable assembly maintains full calibrated electrical‑length for NSv transducer‑system, field‑splicing is prohibited.
- Fully compatible with NSv‑standard proximitor hardware and 990‑series NSv DIN‑rail two‑wire transmitters, no on‑site sensitivity‑adjustment work.
- Good thermal‑stability characteristic, measurement performance stays stable under wide‑range ambient‑temperature variation. Application Scenarios: Radial‑vibration and thrust‑position monitoring for metric‑thread‑configured compressors, process pumps and steam turbines; compact‑cavity bearing‑housing measurement‑points; key‑phasor rotational‑speed‑signal pickup; European‑origin rotating‑machinery retrofitting and new‑build projects; petrochemical and power‑plant machinery‑protection loops with metric mounting‑fixture standard. Performance Parameters: Linear error ≤ ±0.5% full‑scale; low inherent electrical‑noise output; phase deviation ≤5° within working‑frequency band; reliable long‑term‑running performance without frequent recalibration requirement. Material Composition: AISI 316 stainless‑steel probe housing and M10×1 threaded sleeve; precision‑wound copper sensing‑coil; high‑temperature ceramic insulating‑core; triaxial signal‑cable with FEP fluoropolymer outer‑jacket; gold‑plated coaxial‑contact assemblies; fluorosilicone high‑temperature‑sealing gaskets; laser‑welded metal hermetic‑seal joints. Structural Characteristics: Short‑tip cylindrical probe head; external M10×1 metric mounting‑thread; rear permanently potted integral triaxial‑signal‑cable; cable‑end ClickLoc miniature coaxial plug; model‑number and unique serial‑identifier laser‑etched onto probe outer metal‑housing surface. Working Principle: Matched NSv proximitor generates high‑frequency alternating‑excitation‑signal fed to probe internal sensing‑coil. Alternating magnetic‑field radiates outward from probe tip and induces eddy‑current loops on surface of conductive rotating‑shaft target. Gap‑distance change between probe tip and shaft surface modifies eddy‑current intensity and sensing‑coil impedance. Proximitor signal‑conditioning‑circuit converts impedance fluctuation into DC gap‑voltage signal superimposed with dynamic AC vibration‑component. DC gap‑voltage maintains linear‑proportional correlation with physical tip‑to‑target clearance. Installation Requirements:
- Fully clean M10×1 threaded mounting‑hole, remove burrs, rust and residual sealant material to guarantee complete thread‑engagement.
- Tighten probe according to manufacturer‑specified torque‑value; excessive torque will produce permanent‑deformation damage to internal coil‑assembly.
- Adjust static gap‑clearance between probe tip and shaft target to middle‑section of probe linear‑measurement‑range.
- Maintain enough physical‑separation‑distance for multi‑probe installation to eliminate electromagnetic cross‑talk interference.
- Triaxial‑signal‑cable minimum bending‑radius must exceed ten times cable outer‑diameter; sharp‑bending and heavy‑squeezing are strictly forbidden.
- Separate probe‑signal‑cable routing path away from high‑power‑motor and variable‑frequency‑drive power‑cables to reduce electromagnetic‑noise coupling.
- Tighten ClickLoc connector only by finger‑applied‑force; tool‑driven over‑torque damages gold‑plated internal‑contact components. Usage Notes:
- Probe housing cannot be disassembled, breaking laser‑welded hermetic‑seal will invalidate factory‑calibration and environmental‑protection capability.
- Cutting or modifying factory‑integrated triaxial‑cable assembly is prohibited; changed electrical‑length ruins transducer‑system linearity and sensitivity‑performance.
- Avoid heavy‑impact and scratch‑damage to probe‑tip ceramic‑surface; surface defect degrades measurement‑accuracy and linear‑performance.
- Prevent signal‑cable long‑time direct‑contact with high‑temperature hot‑surface‑piping to avoid accelerated jacket‑material aging.
- Inspect probe mounting‑tightness, cable mechanical‑integrity and connector locking‑state during each equipment‑overhaul‑cycle.
