Description
Bently 330904‑08‑15‑10‑02‑00
Technical Specifications:
- Sensing Principle: Eddy‑current non‑contact inductive sensing
- Thread Specification: M10×1 metric thread
- Unthreaded Tip Length: 0.8 inch
- Probe Overall Case Length: 1.5 inch
- Integral Cable Length: 10 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‑thread specification matches European‑standard metric‑mount fixtures, simplifies installation on metric‑design rotating‑equipment.
- Optimized 0.8‑inch unthreaded‑tip dimension adapts to medium‑narrow installation‑cavity inside bearing‑housings.
- Laser‑welded full‑hermetic‑sealing construction blocks machine‑oil, steam and moisture from penetrating internal coil‑chamber.
- Gold‑plated ClickLoc miniature coaxial‑connector achieves finger‑tight locking‑connection, maintains stable contact‑state under long‑time operational‑vibration.
- Factory‑pre‑assembled 10‑meter triaxial‑cable assembly preserves full calibrated electrical‑length of NSv transducer‑system, field‑splicing is forbidden.
- Direct compatibility with NSv‑standard proximitor hardware and 990‑series NSv DIN‑rail two‑wire transmitters, no on‑site sensitivity‑adjustment work.
- Superior thermal‑stability, measurement‑performance keeps consistent under wide‑range ambient‑temperature fluctuation. Application Scenarios: Radial‑vibration and thrust‑position monitoring for metric‑thread‑configured compressors, steam turbines and process‑pumps; medium‑size‑cavity bearing‑housing measurement‑points; key‑phasor rotational‑speed‑signal acquisition; European‑origin rotating‑machinery new‑build and retrofitting‑projects; petrochemical and power‑plant machinery‑protection measurement‑loops adopting metric‑mount‑fixture. Performance Parameters: Linear error ≤ ±0.5% full‑scale; low inherent electrical‑noise output; phase deviation ≤5° within working‑frequency band; stable 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: Cylindrical probe‑head with 0.8‑inch unthreaded tip; 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 outputs high‑frequency alternating‑excitation‑signal into probe internal sensing‑coil. Alternating magnetic‑field radiates outward from probe tip and induces eddy‑current loops on conductive rotating‑shaft target‑surface. Variation of physical gap‑distance between probe tip and shaft surface changes eddy‑current intensity and sensing‑coil impedance. Proximitor signal‑conditioning‑circuit converts impedance fluctuation into DC gap‑voltage signal with superimposed dynamic AC vibration‑component. DC gap‑voltage maintains linear‑proportional relation with tip‑to‑target physical‑clearance.
