Bently 330902‑00‑95‑05‑02‑00

Bently 330902‑00‑95‑05‑02‑00

Product Introduction: The 330902‑00‑95‑05‑02‑00 is armored‑cable version of 3300 NSv proximity probe series. It has 0.0‑inch unthreaded tip length, 9.5‑inch overall case dimension, factory‑installed 5‑meter armored triaxial cable and ClickLoc miniature coaxial connector. External metal armor provides robust mechanical protection for triaxial signal cable. This probe is used for shaft radial vibration, thrust‑position and key‑phasor speed measurement in locations where cable faces mechanical abrasion, heavy‑object impact and sharp‑edge friction risk. It works together with 3300 NSv proximitor or 990/991 NSv transmitters. Hermetically sealed probe body adapts to high‑temperature, oil‑filled bearing‑housing environments and complies with API‑670 industrial machinery‑protection standards.

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Description

Bently 330902‑00‑95‑05‑02‑00

Technical Specifications:

  • Sensing Principle: Eddy‑current non‑contact inductive sensing
  • Thread Specification: 1/4‑28 UNF
  • Unthreaded Tip Length: 0.0 inch
  • Probe Overall Case Length: 9.5 inch
  • Integral Armored 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 probe body, armored cable mechanical protection Functional Features:
  1. External metal armor layer protects internal triaxial core cable against abrasion, sharp‑edge cutting and mechanical impact at field installation sites.
  2. Zero‑unthreaded‑tip structure allows probe tip to sit nearly flush with mounting thread face for special installation‑fixture requirements.
  3. Laser‑welded hermetic probe sealing stops oil vapor and moisture from entering internal coil assembly.
  4. Gold‑plated ClickLoc connector provides anti‑vibration secure connection without tool‑driven over‑torque risk.
  5. Factory‑fixed 5‑meter armored‑cable assembly maintains calibrated electrical length of NSv transducer chain, no field splicing allowed.
  6. Fully compatible with NSv‑standard proximitor modules and DIN‑rail NSv 2‑wire transmitters, no on‑site sensitivity adjustment.
  7. High thermal stability, measurement performance remains consistent under large‑range temperature variation. Application Scenarios: Radial‑vibration and thrust‑position monitoring for compressors, steam turbines and heavy‑duty pumps; field locations with high cable‑abrasion risk such as machine‑base and grating‑tray routing; key‑phasor speed‑signal acquisition; heavy‑industry petrochemical and power‑plant rotating‑equipment protection measurement points. Performance Parameters: Linear error ≤ ±0.5% full‑scale; low inherent signal noise; phase deviation ≤5° within full operating frequency band; long‑term stability without periodic recalibration. Material Composition: AISI 316 stainless‑steel probe body and threaded sleeve; precision‑wound copper sensing coil; high‑temperature ceramic insulating core; internal FEP‑jacketed triaxial cable; outer stainless‑steel flexible armor sheath; gold‑plated coaxial contact assemblies; fluorosilicone high‑temperature sealing gaskets; laser‑welded metal sealing joints. Structural Characteristics: Zero‑unthreaded‑tip cylindrical probe head; external 1/4‑28 UNF mounting thread; rear potted connection with armored flexible metal‑sheath cable; cable‑end ClickLoc miniature coaxial plug; model and serial number laser‑etched on probe metal housing. Working Principle: Matched proximitor outputs high‑frequency excitation signal into probe internal coil, generating alternating magnetic field at probe tip. Alternating magnetic field induces eddy‑current loops on surface of conductive rotating shaft target. Gap‑distance variation between probe tip and shaft surface changes eddy‑current magnitude and coil impedance. Proximitor converts impedance change into DC gap‑voltage and superimposed dynamic AC vibration signal, gap‑voltage maintains strict linear relation with physical clearance. Installation Requirements:
  8. Completely clean mounting threaded hole, remove burrs, rust and residual sealant for full‑thread engagement.
  9. Tighten probe with specified torque value; over‑torque causes permanent deformation and damage to internal coil components.
  10. Adjust static gap between probe tip and shaft target to middle section of probe linear working range.
  11. Maintain minimum tip‑to‑tip separation for multiple‑probe installation to avoid electromagnetic cross‑talk interference.
  12. Armored cable minimum bending radius must exceed twelve times cable outer diameter; sharp bending and crushing are strictly forbidden.
  13. Route armored‑cable path separate from high‑current power and inverter‑drive cables to minimize electromagnetic noise coupling.
  14. Operate ClickLoc connector by finger‑tight force only; over‑torque will damage internal gold‑plated contact elements. Usage Notes:
  15. Do not disassemble probe housing, breaking laser‑welded hermetic seal invalidates factory calibration and environmental resistance performance.
  16. Cutting or stripping factory‑integrated armored‑cable assembly is prohibited; modified electrical length destroys system linearity and sensitivity.
  17. Avoid impact and scratch damage on probe‑tip ceramic surface; surface defect reduces measurement accuracy and linearity.
  18. Prevent armored‑cable long‑time direct contact with high‑temperature hot‑surface piping to accelerate jacket aging.
  19. Inspect probe mounting tightness, armor‑cable mechanical integrity and connector locking state during each overhaul cycle.

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