Product Introduction
The 330104-01-08-50-01-05 is a 3300 XL 8 mm Proximity Probe from Bently Nevada. This part number represents the probe component of the 3300 XL series eddy current proximity probe system, designed for non-contact measurement of shaft vibration, position, and eccentricity in rotating machinery. This configuration features a probe with a standard unthreaded length, extended case length, and an integral cable equipped with a ClickLoc™ connector for secure and reliable connectivity. The probe operates on the eddy current principle, delivering high linearity, exceptional temperature stability, and dependable performance in demanding industrial environments.
Parameters
| Parameter | Specification |
|---|---|
| Product | 3300 XL 8 mm Proximity Probe |
| Part Number | 330104-01-08-50-01-05 |
| System Type | 3300 XL 8 mm Proximity Probe System |
| Component | Probe (sensor) |
| Probe Diameter | 8 mm |
| Thread Type | M10 × 1.0 mm |
| Unthreaded Length | 10 mm (0.39 in) |
| Case Length | 80 mm (3.15 in) |
| Total Length | 80 mm case length + integral cable |
| Integral Cable | 5.0 m (16.4 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 when connected to Proximitor® sensor |
| Operating Temperature (Probe Tip) | –35°C to +177°C (–31°F to +350°F) |
| Dimensions | Probe: M10 × 1.0 thread, 10 mm unthreaded, 80 mm case length Cable: 5.0 m length with ClickLoc™ connector |
| Weight | Approx. 0.35 kg (0.77 lbs) |
Application Scenarios
Radial Vibration Monitoring – Measures shaft vibration in steam turbines, gas turbines, compressors, and generators to detect imbalance, misalignment, and bearing wear.
Axial (Thrust) Position Monitoring – Monitors shaft axial displacement to ensure proper rotor positioning within bearing clearances and prevent thrust bearing damage.
Shaft Eccentricity Measurement – Used during turbine startup to detect shaft bow and avoid rotor-to-stator contact.
Differential Expansion Monitoring – Applied in combination with other sensors to measure thermal growth between rotor and casing in large turbomachinery.
Keyphasor® Reference Applications – Provides once-per-turn timing signal for phase measurement and synchronous vibration analysis when paired with a gear tooth or keyway target.
Deep Probe Installations – The 80 mm case length with 10 mm unthreaded section allows installation through thick machine casings or in applications requiring deeper probe reach.
Power Generation, Oil & Gas, and Heavy Industrial Applications – Deployed in critical rotating machinery protection systems requiring API 670 compliance and high reliability.
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