Bently Nevada 330195-02-12-90-05

Product Introduction
The 330195-02-12-90-05 is a rugged, high-precision eddy-current proximity probe from the 3300 XL series, purpose-built for reverse-mount installations where frontal access is impossible. The 90 cm armored stainless-steel jacket protects the cable from abrasion, chemicals, and moisture while the probe delivers 7.87 V/mm (200 mV/mil) sensitivity across the full –55 °C to +218 °C temperature range. When paired with any 3300 XL extension cable and Proximitor sensor, it forms a complete 0.5-metre system for continuous vibration and axial-position monitoring on critical rotating machinery.
Technical Specifications
  • Probe Tip Diameter: 8 mm
  • Mounting Style: Reverse mount (rear-access)
  • Thread Specification: 3/8-24 UNF
  • Total Probe Length: 0.5 metre (1.6 ft)
  • Armor Option: 90 cm stainless-steel armor over cable
  • Connector: Miniature gold-plated ClickLoc coaxial
  • Temperature Range: –55 °C to +218 °C (–67 °F to +424 °F)
Category:
Description
  • Sensitivity: 7.87 V/mm (200 mV/mil) at 2 kHz
  • Frequency Response: 0 to 10 kHz (–3 dB)
  • Supply Voltage: –24 Vdc (from Proximitor)
  • Output: Linear voltage proportional to gap
  • Pressure Seal: Viton® O-ring, differential pressure seal between tip and case
  • Agency Approvals: ATEX, IECEx, CSA for Zone 2/Class I Div 2 hazardous areas
Functional Features
  • Reverse-Mount Housing: Installs from the rear of the machine case, eliminating the need to remove guards or couplings.
  • Armored Cable: 90 cm stainless-steel armor resists cutting, chemical splash, and extreme temperatures.
  • Gold-Plated ClickLoc Connector: Positive-locking, corrosion-resistant connection under vibration.
  • Extended Temperature Operation: Full accuracy from –55 °C arctic starts to +218 °C near hot turbines.
  • Drop-in Compatibility: Interchangeable with any 3300 XL 8 mm system; no field re-span required.
  • Linear Output: Highly repeatable voltage-vs-gap curve simplifies calibration and trending.
  • Hazardous-Area Ready: Certified for Zone 2/Class I Div 2 installations worldwide.
Application Scenarios
  • Steam-turbine shaft vibration behind casing covers
  • Gas-compressor radial vibration in rear-access bulkheads
  • Centrifugal pump axial position on double-ended designs
  • Marine propulsion shaft monitoring inside narrow stern tubes
  • High-temperature fan bearings with restricted frontal clearance
  • Refinery turbo-expander thrust position inside insulated enclosures
  • Steel-mill reversing-mill gearbox shaft run-out in cramped guard areas
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