Bently Nevada 330103-04-09-10-02-05 3300 XL 8 mm Proximity Probe Overview
Industrial rotating machinery demands precise and reliable vibration monitoring to prevent catastrophic failures. The Bently Nevada 330103-04-09-10-02-05 is a 3300 XL 8 mm Proximity Probe designed for non-contact displacement measurements. This probe features an M10 x 1 thread, a 1.0 meter (3.3 feet) cable with a miniature coaxial ClickLoc connector, and CSA, ATEX, and IECEx approvals for hazardous area use. It is a critical component for protecting turbines, compressors, and pumps.

Technical Specifications Breakdown
Key parameters for the 330103-04-09-10-02-05 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | 3300 XL 8 mm Proximity Probe |
| Thread Size | M10 x 1 |
| Unthreaded Length | 04 mm |
| Overall Case Length | 90 mm |
| Total Length (Cable) | 1.0 meter (3.3 feet) |
| Connector Type | Miniature coaxial ClickLoc connector |
| Agency Approvals | CSA, ATEX, IECEx |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Linear Range | 2 mm (80 mils), from 0.25 to 2.3 mm (10 to 90 mils) |
| Recommended Gap Setting (Radial Vibration) | -9 Vdc [approximately 1.27 mm (50 mils)] |
| Probe DC Resistance (1.0 m length) | 7.59 ± 0.50 Ω |
| Operating Temperature (Standard) | -52°C to +177°C (-62°F to +350°F) |
| Probe Weight | 323 g/m (11.4 oz) |
Industry Applications
This proximity probe is widely used in critical rotating machinery such as steam turbines, centrifugal compressors, and large pumps. The 2 mm linear range and -9 Vdc recommended gap setting enable accurate radial vibration and shaft position monitoring. With CSA, ATEX, and IECEx approvals, it is suitable for installation in hazardous environments including oil and gas refineries and chemical plants.

Installation & Setup Guidance
Proper installation is essential for reliable measurements. Ensure the probe tip is clean and free of debris. Mount the probe using the M10 x 1 thread with a maximum thread engagement of 15 mm. Use 3-conductor shielded triad cable with tinned field wiring for the field wiring between the Proximitor Sensor and the monitor. The maximum field wiring length is 305 meters (1,000 feet). Set the gap to approximately -9 Vdc (1.27 mm) for radial vibration applications.
Maintenance & Reliability
Inspect the probe cable and connector periodically for damage. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. Contact the custom design department if pressure seal testing is required.
Compatibility & Integration
The 330103-04-09-10-02-05 integrates with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. When installed with intrinsically safe zener barriers per drawing 141092 or galvanic isolators, it is suitable for Class I, Zone 0 and Class I, Division 2 areas. For non-incendive circuits, use drawing 140979.
Selection Guide & Purchasing Advice
When selecting a replacement probe, verify the thread size, cable length, and agency approvals match your application. The 330103-04-09-10-02-05 is available from AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 330103-04-09-10-02-05 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
