Description
Bently 330730‑080‑02‑05
Technical Specifications: Sensing‑tip Diameter: 25 mm Probe Case Length: 80 mm Built‑in Armored‑Cable Length: 2.0 m Connector Type: Click‑Loc explosion‑proof gold‑plated coaxial‑connector Linear Measurement Range: 0 ~ 6.35 mm Sensitivity: 1.97 V/mm Operating Temperature Range: ‑51 °C ~ +177 °C Agency Certifications: ATEX, IECEx, CSA Net Weight: 310 g Compatible System: 3300 XL 25 mm Proximitor Sensor
Functional Features: Large‑size sensing‑tip adapts to large‑diameter rotor‑shaft measurement. Stainless‑steel interlocked armor protects built‑in‑cable against abrasion‑impact in harsh‑field‑environment. Full hazardous‑area‑certification supports installation inside explosive‑gas classified‑zones. Click‑Loc explosion‑proof self‑locking‑connector resists vibration‑loosening. Factory‑calibrated sensitivity, no‑need‑field‑adjustment. Large linear‑range accommodates large‑shaft‑thermal‑expansion clearance‑variation.
Application Scenarios: Shaft‑vibration, axial‑thrust‑displacement and Keyphasor‑phase‑reference measurement for large‑steam‑turbines, heavy‑duty centrifugal‑compressors, large‑generator‑sets. Deployed in petrochemical and power‑plant hazardous‑classified‑areas with large‑shaft‑size rotors.
Performance Parameters: Measurement Non‑linearity: Less than ±1.5 % of full‑scale Insulation‑resistance: ≥100 MΩ @500 V DC Maximum‑vibration‑tolerance: 10 g 10‑2000 Hz Shock‑resistance: 500 g peak 11 ms Maximum‑operating‑relative‑humidity: 93 % non‑condensing
Material Composition: Probe‑tip: Polyphenylene Sulfide (PPS) Probe‑housing: AISI 304 stainless‑steel Built‑in‑cable Armor‑layer: AISI 302 interlocked stainless‑steel Inner‑insulation: FEP fluoropolymer Connector‑body: Gold‑plated brass‑alloy Explosion‑proof‑seal‑gasket: Fluororubber
Structural Features: Thick‑wall cylindrical stainless‑steel probe‑housing with large‑diameter PPS encapsulated‑sensing‑coil. Integral armored‑coaxial‑cable extends from probe rear‑end. Terminated with Click‑Loc explosion‑proof self‑locking‑connector. CableLoc strain‑relief‑section at cable‑exit‑point of probe housing. No intermediate‑splice‑points inside probe‑assembly.
Working Principle: Matched Proximitor‑sensor outputs high‑frequency oscillating‑current to probe‑internal‑coil. Alternating magnetic‑field generates eddy‑current on target‑metal‑shaft‑surface. Gap‑distance‑variation changes coil‑impedance. Impedance‑variation signal is transmitted via armored‑cable to Proximitor for conversion into proportional‑DC‑voltage‑output.
Installation Requirements: Install probe with specified‑torque value, avoid over‑torque‑damage. Guarantee adequate target‑metal‑surface area covering full‑probe‑tip. Keep ferromagnetic‑material away from probe‑measuring‑face peripheral‑zone. Maintain minimum‑bend‑radius for armored‑cable at 38.1 mm. Reserve sufficient‑cable‑slack for thermal‑expansion and machine‑vibration‑displacement. Comply with local hazardous‑area‑installation‑specifications. Ground armor‑layer separately; shielding‑layer applies single‑end‑grounding.
Usage Notes: Probe, extension‑cable and Proximitor‑sensor must match 25‑mm‑system calibrated‑total‑length. Forbid cutting or modifying probe‑integral‑armored‑cable. Prevent mechanical‑impact damage on PPS probe‑tip. Do not replace original‑explosion‑proof‑connector with non‑certified‑parts in hazardous‑area‑locations. Inspect sealing‑gasket‑condition periodically.
