The GE / Bently Nevada 82981-000-130-018-02 is a 3300 XL 5/8mm proximity probe engineered for non-contact distance measurement on rotating shafts in industrial machinery. It detects gap variation between the probe tip and conductive surfaces, delivering real-time data for vibration and position monitoring. This capability enables early detection of mechanical degradation and prevents unplanned downtime.
## Technical Specifications
**Measurement Performance**
• Linear range: 2 mm (80 mils)
• Output voltage deviation from best fit straight line: ±0.038 mm (±1.5 mil) typical
• Scale factor: 7.87 V/mm (200 mV/mil) at nominal conditions
• Frequency response: 0 to 10 kHz at +0, -3 dB with up to 305 m (1000 feet) of field wiring
**Temperature Stability**
Over the operating range of -35 °C to +177 °C (-31 °F to +350 °F), scale factor remains within ±10% of nominal and linearity error stays within ±0.076 mm (±3 mils).
**Power & Signal**
• Proximitor sensor supply: -17.5 Vdc to -26 Vdc at 12 mA maximum
• Supply sensitivity: <2 mV change per volt input variation
• Field wiring: 3-conductor shielded triad cable, 0.2 mm to 1.5 mm (16 to 24 AWG), maximum 305 m (1000 feet)
**Physical Construction**
• Probe tip: Polyphenylene sulfide (PPS)
• Probe case: AISI 304 stainless steel
• Connectors: Gold-plated brass ClickLoc, finger-tight assembly, no tools required
• Probe cable: 75 Ω coaxial, fluoroethylene propylene insulated; available in 0.5, 1, 2, 5, or 9 m lengths
• Optional armor: Flexible AISI 302 stainless steel with or without FEP
## Key Features
• Compact 5/8mm form factor suitable for restricted mounting spaces, including bearing pad installations
• Fully interchangeable probes, extension cables, and Proximitor sensors within the 3300 XL series—no bench calibration required
• Excellent linearity and temperature stability across industrial operating ranges
• Corrosion-resistant connectors designed for field deployment without special tools
## Typical Applications
• Machinery condition monitoring and predictive maintenance
• Rotating equipment vibration analysis
• Shaft proximity and axial position measurement
• Thrust bearing pad monitoring
## Compatibility & Integration
Probes and extension cables are 75 Ω coaxial, fluoroethylene propylene insulated. Full interchangeability with other 3300 XL series components eliminates component matching and reduces spare parts inventory.
