The Bently Nevada 330881-28-08-090-00-02 is a PROXPAC XL proximity transducer designed for continuous, non-contact monitoring of rotating machinery. It forms part of the 3300 Proximity Transducer System and delivers high-fidelity measurements of shaft displacement and vibration. This unit integrates a probe, extension cable, and Proximitor® sensor into a single pre-calibrated assembly, ensuring consistent performance without field matching.
Engineers commonly install this transducer in turbines, compressors, pumps, and generators where reliability is critical. Its design supports compliance with API 670 (4th Edition) for mechanical configuration, linear range, and thermal stability. The system outputs a DC voltage proportional to the gap between the probe tip and a conductive target surface—typically ferrous steel.
Unlike modular setups, the PROXPAC XL configuration reduces installation complexity and minimizes signal degradation. The 330881-28-08-090-00-02 includes an 8 mm probe with a 0.9 m (3 ft) integral cable and a 2.7 m (9 ft) extension segment, as indicated by the suffix code. It features a rugged stainless steel housing and a miniature ClickLoc™ coaxial connector for secure coupling.
This transducer operates reliably in harsh industrial environments, including hazardous zones. It carries global certifications such as CSA, ATEX, and IECEx. Moreover, it remains fully compatible with existing 3300 XL monitoring systems and legacy 3300 8 mm components, enabling seamless upgrades or replacements.
Key Technical Specifications
| Parameter | Value |
|---|
| Model Number | 330881-28-08-090-00-02 |
| Product Type | PROXPAC XL Proximity Transducer (Integrated Assembly) |
| Manufacturer | Bently Nevada (a Baker Hughes Company) |
| System Family | 3300 Proximity Transducer System |
| Probe Diameter | 8 mm |
| Total Cable Length | 3.6 m (0.9 m integral + 2.7 m extension) |
| Linear Range | 2.0 mm (80 mils) |
| Output Signal | -2 VDC to -18 VDC (typical), proportional to gap |
| Target Material | Ferrous steel (e.g., 4140) |
| Frequency Response | DC to ≥10 kHz |
| Connector Type | Miniature ClickLoc™ coaxial |
| Housing | Stainless steel probe body |
| Environmental Rating | IP67 (when properly installed) |
| Certifications | CSA, ATEX, IECEx (for applicable variants) |
| Weight | 1.4 kg |
| Dimensions | 320.2 mm × 120 mm × 91.4 mm (L×W×H) |
| Origin | USA |
| Status | Active (not discontinued) |
| MOQ | 1 unit |
| HS Code | 8537101190 |
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