The Bently Nevada 30851-02-000-070-90-00-05 is a high-precision displacement sensor from the legacy 7200 Series. Primarily, this proximity probe utilizes eddy current technology to measure the gap between the probe tip and a rotating shaft. This data is critical for monitoring vibration and axial position in heavy industrial machinery.
Operational Principles and Signal Integrity
Technically, the probe generates a high-frequency magnetic field to detect metallic targets. First, any change in target distance alters the magnetic field, which the Proximitor sensor then converts into a linear voltage signal. Additionally, advanced signal processing helps filter out industrial noise. Consequently, operators can rely on accurate, real-time diagnostics for early fault detection.
Technical Specifications
Based on the specific part number configuration, the probe includes:
- Series: 7200 Series (Reverse Mount)
- Thread Size: 1/4-28 UNF
- Body Length: 2.0 Inches
- Total Length: 7.0 Meters (approx. 23 feet)
- Tip Diameter: 5mm / 8mm (Standard 7200 profile)
- Connector Type: Miniature coaxial with gold-plated contacts
- Mounting Configuration: 90 (Reverse mount for internal housing installation)
Industrial Application and Durability
Because it features a hermetically sealed tip, this probe is ideal for harsh environments. For instance, it frequently monitors steam turbines, centrifugal compressors, and industrial pumps. Moreover, its robust housing resists moisture, oils, and corrosive atmospheres. Thus, it remains a standard choice for power generation and oil and gas facilities.
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