Description
Overview
The 330851-02-000-050-50-00-05 Bently Nevada 3300 XL 25 mm Proximity Probe is a specialized sensor designed for differential expansion monitoring in large turbine applications. With its extended linear range and robust design, it provides precise clearance measurements between rotating and stationary components, ensuring safe turbine operation under varying load conditions.
Technical Specifications
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Model Number: 330851-02-000-050-50-00-05
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Product Type: 3300 XL 25 mm Proximity Probe
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Thread Size: M30 × 2
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Minimum Unthreaded Length: 50 mm
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Cable Length: 5.0 m (16.4 ft), unarmored
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Output Signal: 0.787 V/mm (20 mV/mil)
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Linear Range: 12.7 mm (500 mils)
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System Components: Probe, extension cable, and 3300 XL 25 mm Proximitor Sensor
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Operating Temperature Range: -35°C to +120°C (typical for XL series probes)
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Weight: 0.06 kg
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Dimensions: 1.8 × 1.6 × 123 cm
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System Compatibility: 3300 Proximity Transducer System
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Compliance: API 670 standards for mechanical configuration, accuracy, and linear range
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Certifications: CSA, ATEX, IECEx approvals for hazardous area use
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Origin: USA
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HS Code: 8537101190
Key Features
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Extended 25 mm probe design for differential expansion monitoring
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Wide linear range of 12.7 mm for precise clearance measurement
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Certified for hazardous environments (CSA, ATEX, IECEx)
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Seamless integration with 3300 XL Proximitor Sensors and extension cables
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Reliable performance in demanding turbine and power generation applications
Application Scenarios
The 330851-02-000-050-50-00-05 probe is primarily used in mid-size to large steam turbine generators. It measures differential expansion between rotors and stationary components, preventing internal rubbing and ensuring safe operational clearances during startup, shutdown, and load transitions.
FAQ
Q: What is the linear range of this probe? A: It provides a linear range of 12.7 mm (500 mils).
Q: Is the probe armored? A: No, this model comes without armor, making it suitable for installations in constrained spaces.
Q: What certifications does it carry? A: CSA, ATEX, and IECEx approvals for hazardous area use.
Q: What is its primary application? A: Monitoring differential expansion in steam turbine generators to protect against internal rubbing.
