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This 8 mm proximity probe provides precise shaft vibration and position measurements for critical rotating machinery. It forms an integral part of the Bently Nevada 3300 XL transducer system for condition monitoring. The probe employs eddy current technology to deliver a voltage output proportional to the gap between the tip and the observed conductive surface . Furthermore, it fully complies with the API 670 Standard for mechanical configuration, linear range, accuracy, and temperature stability .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 330103-00-11-50-02-05 |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Thread Specification | M10 x 1 metric |
| Unthreaded Length | 0 mm (Option 00, fully threaded) |
| Overall Case Length | 110 mm (Option 11) |
| Total System Length | 5.0 meters / 16.4 feet (Option 50) |
| Connector Type | Miniature coaxial ClickLoc (Option 02) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Case Material | AISI 303/304 stainless steel |
| Cable Insulation | Fluoroethylene propylene (FEP) |
| Probe DC Resistance | 8.73 Ω ± 0.50 (for 5.0 m length) |
| Linear Range | 2 mm (80 mils) from 0.25 to 2.3 mm gap |
| Recommended Gap | 1.27 mm @ -9 VDC (approx. 50 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) ±5% |
| Operating Temperature | -52°C to +177°C (standard) |
| Extended Cable Rating | Up to +260°C |
| Weight | 323 grams |
| Approvals | CSA, ATEX, IECEx (Option 05) |
Design and Compatibility
This probe features a fully threaded body (0 mm unthreaded length) for solid mounting stability in metric-standard machine casings . The 110 mm case length allows it to reach deep within standard machine housings . This unarmored configuration uses standard coaxial cable, which provides superior routing flexibility in tight spaces . The 5.0-meter total length means the probe connects directly to a 5-meter Proximitor sensor without requiring an intermediate extension cable, reducing potential signal losses .
Applications and Performance
This proximity probe excels in monitoring radial shaft vibration, axial shaft position, eccentricity, and phase reference (Keyphasor) sensing . All 3300 XL 8 mm proximity transducer systems support complete interchangeability of probes, extension cables, and Proximitor sensors, eliminating the need to match or bench calibrate individual components . The system maintains backward compatibility with non-XL 3300 series 5mm and 8mm transducer components .