Description
Technical Specifications
- Product Model: 330851-04-00-020-50-00-00
- Brand: Bently Nevada
- Warranty: One Year
- Input Voltage: Powered via 3300 series proximity monitor system
- Operating Temperature: -40°C ~ +125°C
- Storage Temperature: -55°C ~ +150°C
- Response Time: <1 μs signal propagation delay
- Protection Class: IP67 (sensor assembly)
- Accuracy Class: ±1.25% full scale linearity
- Output Frequency: 0 ~ 10 kHz
- Rated Current Range: Driven by 3300 series oscillator/demodulator
- Communication Interface: 3300 series 5-meter extension cable connection
- Supported Protocols: Eddy current analog signal interface for Bently Nevada monitoring racks
- Overload Capacity: Tolerates minor radial contact without permanent probe damage
- Dimensions: 8 mm probe diameter, standard thread mounting; 5-meter integral cable
Product Overview
The Bently Nevada 330851-04-00-020-50-00-00 is a 3300 XL 8 mm eddy current probe designed for non-contact shaft vibration, position and thrust measurement on rotating machinery. This proximity sensor works alongside matching extension cables and oscillator-demodulator modules to capture precise clearance data between rotating shafts and stationary probes. It eliminates measurement errors caused by physical contact sensors and delivers stable readings even in oily, humid industrial environments. Rotating equipment maintenance engineers, system integrators and power plant control teams rely on this sensor to implement continuous condition monitoring. The optimized coil construction minimizes temperature drift, and sealed assembly prevents contamination ingress that degrades long-term measurement reliability.
Application Scenarios
- Steam & Gas Turbine Vibration Monitoring: Installed on turbine bearing housings to monitor shaft radial vibration and axial thrust. Real-time clearance data enables early identification of rotor imbalance, misalignment and bearing deterioration to avoid catastrophic unit trips.
- Centrifugal Compressor Condition Surveillance: Deployed on oil & gas compression trains. Non-contact measurement avoids mechanical wear issues common with contacting sensors under continuous high-speed operation.
- Large Industrial Generator Monitoring: Used to track shaft position in power station generators. Wide operating temperature range supports installation close to hot rotating components within generator enclosures.
- Industrial Pump and Fan Predictive Maintenance: Integrated into monitoring systems for large process pumps and blowers, capturing vibration trends to schedule maintenance and reduce unplanned downtime.
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