Bently Nevada 330876-03-50-00-00 Vibration Probe (Proximity Sensor)
1. Overview
The Bently Nevada 330876-03-50-00-00 is an eddy-current proximity probe designed for non-contact vibration and displacement measurement in rotating machinery.
It is part of Bently Nevada’s 3300 XL 8mm Proximity Transducer System, widely used in critical industrial applications such as turbines, compressors, and pumps.
2. Key Functions & Features
Non-Contact Vibration & Position Measurement:
Uses eddy-current technology to detect shaft vibration, axial position, and eccentricity without physical contact.
Measures dynamic vibration (e.g., bearing motion) and static position (e.g., shaft alignment).
High Accuracy & Reliability:
8mm diameter probe with a linear range of 2mm (80 mils) and sensitivity of 200 mV/mil (7.87 V/mm).
Operates at -40°C to +150°C for harsh industrial environments.
Compatibility & Integration:
Works with Bently Nevada Proximitor® (e.g., 3300 XL 8mm) for signal conditioning.
Outputs a -2V to -18V DC signal proportional to the gap between the probe and target.
Industrial Standards Compliance:
Meets API 670 standards for machinery protection in oil & gas, power, and petrochemical industries.
3. Applications
Vibration Monitoring: Detects radial/axial vibration in turbines, compressors, and motors.
Thrust Position Measurement: Monitors axial displacement in bearings.
Speed/Phase Reference: Used with Keyphasor® for timing analysis.
4. System Components
Probe (330876-03-50-00-00): 8mm diameter, includes integral cable (standard length options: 0.5m–9m).
Extension Cable (if required): Connects probe to Proximitor.
Proximitor (e.g., 3300 XL 8mm): Conditions and amplifies the signal.
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