The 330908-39-71-05-01-00 belongs to the 3300 XL NSV (Non-Standard Viton) series. This proximity probe features an M10 x 1 metric thread and specifically targets centrifugal air compressors or small pumps where standard 8mm probes exceed physical clearance limits.
Part Number Breakdown
| Code | Specification | Description |
| 330908 | Base Model | 3300 XL NSV Proximity Probe, M10 x 1 thread, no armor |
| -39 | Unthreaded Length | 39 mm |
| -71 | Overall Case Length | 71 mm |
| -05 | Total Length | 0.5 meters (1.6 feet) |
| -01 | Connector | Miniature coaxial ClickLoc™ connector |
| -00 | Agency Approval | Standard (No hazardous area approvals) |
Core Performance Specifications
- Linear Range: 0.25 to 1.25 mm (10 to 50 mils).
- Sensitivity: 7.87 V/mm (200 mV/mil).
- Target Material: Calibrated for AISI 4140 steel.
- Probe Tip: Uses Polyphenylene Sulfide (PPS) for superior chemical and moisture resistance.
Engineering Advantages
- Solves Space Constraints: The M10 thread and NSV compact design allow installation in restricted bores where standard sensors fail to fit.
- High-Speed Stability: Delivers precise radial vibration and axial position data for small-diameter shafts.
- Robust Connection: The ClickLoc™ connector resists vibration-induced loosening, ensuring signal integrity.
Critical Installation Requirements
- System Integrity: Use this probe only with a 3300 XL NSV Extension Cable and 3300 XL NSV Proximitor. Mixing these with standard 3300 XL components causes significant linearity errors.
- Precise Gapping: Because the linear range is narrow (1.0 mm total), you must set the DC gap voltage accurately—typically between -6.0 VDC and -7.0 VDC—to ensure the sensor operates in its linear region.
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