The Bently Nevada 3300 XL 25mm Proximity Probe is designed to replace older 7200 series and 25mm DE Integral systems, including side and rear exit versions. It delivers the same output as previous models, allowing easy upgrades without monitor changes, but all system components must be replaced with 3300 XL 25mm parts for proper operation.
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The Bently Nevada 3300 XL 25mm Proximity Probe is a high-performance eddy current sensor that delivers accurate non-contact measurements of shaft vibration and displacement in critical rotating machinery. Its extended measurement range ensures reliable operation in demanding industrial environments.
The Bently Nevada 3300 XL 25mm Proximity Probe also allows seamless upgrades from older 7200 series and 25mm DE Integral systems, providing the same output signal to avoid changes to existing monitors. For optimal performance, all system components should be replaced with 3300 XL 25mm parts.
Designed for precise non-contact shaft vibration and displacement measurement
Extended 25 mm measurement range for improved linearity
Direct replacement for 7200 series and 25 mm DE Integral transducer systems
Same output signal as legacy systems for easy upgrades without monitor changes
Available in multiple case configurations, including side and rear exit designs
Rugged, industrial-grade construction for reliable long-term performance
Compatible with Bently Nevada 3300 XL monitoring and protection systems
Probe type: Eddy‑current proximity transducer (3300 XL series)
Probe diameter: 25 mm (0.98 in) sensing element size
Output sensitivity: ~0.787 V/mm (20 mV/mil) nominal
Linear range: Up to ~12.7 mm (500 mils) of target movement
Output resistance: ~50 Ω
Recommended target: ≥ 61 mm (2.4 in) diameter AISI 4140 steel
Probe tip material: Polyetheretherketone (PEEK)
Probe case material: AISI 304 stainless steel
Temperature range (probe): –35 °C to +200 °C (–31 °F to +392 °F), intermittent to +250 °C (482 °F)
Transducer system temp: –51 °C to +100 °C for proximitor sensor
Power supply requirement: –17.5 Vdc to –26 Vdc (typical)
Load requirement: ~10 kΩ at specified power
Cable type: FluidLoc® coaxial for moisture resistance
Connector: High‑temperature ClickLoc™ connectors
RFI/EMI immunity: Enhanced for CE compliance
Mounting: DIN‑rail or traditional panel mount for proximitor sensor
This is a reference configuration for the Bently Nevada 3300 XL 25mm Proximity Probe. It represents one commonly supplied setup and helps customers understand how the part number is structured.
Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as probe length, cable length, connector type, approvals, or environmental conditions.
✅ Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.
The Bently Nevada 3300 XL 25mm Proximity Probe is commonly used in monitoring critical rotating machinery, including:
Steam and gas turbines
Centrifugal and axial compressors
Large industrial motors and generators
Reciprocating compressors (rod position monitoring)
Shaft vibration, axial (thrust) position, and differential expansion measurements
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