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This 8 mm proximity probe provides reliable shaft vibration and position measurements for critical rotating machinery. It operates as a fundamental component within the Bently Nevada 3300 XL transducer system for predictive maintenance. The probe uses eddy current technology to generate a voltage output proportional to the gap between its tip and the conductive target surface. Furthermore, it fully complies with API 670 standards for mechanical configuration, linearity, and thermal stability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 330101-00-18-05-02-05 |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Thread Specification | M10 x 1 metric (Option 00) |
| Unthreaded Length | 0.0 mm (fully threaded) |
| Overall Case Length | 18.0 mm / 0.71 in (Option 18) |
| Total System Length | 0.5 meter / 1.64 feet (Option 05) |
| 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 | 0.87 Ω ± 0.50 (for 0.5 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 | 250 grams |
| Approvals | CSA, ATEX, IECEx (Option 05) |
Design and Installation Features
This probe features an M10 x 1 metric thread for mounting in metric-standard machine casings. The fully threaded configuration (0.0 mm unthreaded length) ensures maximum thread engagement for superior mounting stability. Its 18.0 mm overall case length provides a compact profile for installations with limited clearance. Moreover, the 0.5 meter total cable length suits applications requiring short probe leads in confined spaces. The ClickLoc connector ensures secure attachment to extension cables.
Performance and Applications
This probe excels at monitoring radial shaft vibration, thrust position, and eccentricity in turbomachinery. It also performs phase reference (Keyphasor) detection for speed and timing measurements. The 3300 XL 8 mm system guarantees complete interchangeability of probes, extension cables, and Proximitor sensors. Consequently, users can replace individual components without recalibration, significantly reducing maintenance time and costs.
Environmental Durability
The probe operates reliably across extreme temperatures from -52°C to +177°C. Its PPS tip and stainless steel case resist harsh industrial chemicals, moisture, and abrasive contaminants. The FEP cable insulation maintains excellent flexibility and signal integrity under demanding conditions. Therefore, this probe suits power generation, oil and gas, pulp and paper, and heavy industrial applications requiring precise monitoring in confined spaces.