Product Introduction
The 21000-00-00-15-030-04-02 is a 3300 XL 8 mm Proximity Probe System component manufactured by Bently Nevada. This part number typically represents a complete proximity probe assembly, including the probe, extension cable, and Proximitor sensor. It is designed for non-contact measurement of shaft vibration, position, and eccentricity in rotating machinery. The system operates on the eddy current principle, providing high linearity and stability over a wide temperature range. It is widely used in critical machinery protection and condition monitoring applications.
Parameters
| Parameter | Specification |
|---|---|
| Part Number | 21000-00-00-15-030-04-02 |
| System Type | 3300 XL 8 mm Proximity Probe System |
| Components | Probe, Extension Cable, Proximitor Sensor |
| Probe Diameter | 8 mm |
| Probe Thread | M10 × 1.0 mm |
| Unthreaded Length | 15 mm |
| Total Case Length | 30 mm |
| Extension Cable | 4.0 m (13.1 ft) |
| Cable Connector | ClickLoc™ locking connector |
| Operating Principle | Eddy current (non-contact) |
| Linear Range | 0.25 mm to 2.29 mm (10 to 90 mils) |
| Output | Voltage proportional to gap (typically -2 to -18 V DC) |
| Operating Temperature | –35°C to +85°C (–31°F to +185°F) |
| Dimensions | Probe: M10 × 1.0 thread, 30 mm case length Extension Cable: 4.0 m length Proximitor: 76.2 mm × 44.5 mm × 25.4 mm (3.0 in × 1.75 in × 1.0 in) |
| Weight | Approx. 0.45 kg (1.0 lbs) total assembly |
Application Scenarios
Radial Vibration Monitoring – Used on steam turbines, gas turbines, compressors, and generators to detect shaft vibration and prevent catastrophic failures.
Axial (Thrust) Position Monitoring – Measures shaft axial displacement to ensure proper positioning within bearing clearances.
Shaft Eccentricity Measurement – Applied during turbine startup to monitor shaft bow and avoid rotor-to-stator contact.
Differential Expansion – Used in combination with other sensors to monitor thermal growth between rotor and casing.
Keyphasor® Reference – Provides once-per-turn timing reference for phase measurement and synchronous vibration analysis.
Power Generation, Oil & Gas, and Heavy Industrial Applications – Deployed in critical rotating machinery protection systems requiring high reliability and API 670 compliance.
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