Precision Vibration Monitoring with the Bently Nevada 330102-11-45-50-11-CN
When machine reliability is non-negotiable, the Bently Nevada 330102-11-45-50-11-CN 3300 XL 8 mm Proximity Probe delivers the accurate, repeatable measurements your predictive maintenance program demands.
Technical Specifications Breakdown
Key parameters for the 330102-11-45-50-11-CN are listed below for quick reference:
| Feature | Specification |
|---|---|
| Probe Type | 3300 XL 8 mm Proximity Probe |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 1.1 in |
| Overall Case Length | 4.5 in |
| Total Length | 5.0 meters (16.4 feet) |
| Connector | Miniature coaxial ClickLoc with connector protector |
| Cable Type | FluidLoc cable |
| 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 [approx. 1.27 mm (50 mils)] |
| Operating Temperature (Standard) | -52°C to +177°C (-62°F to +350°F) |
| Agency Approval | Country Specific Approval (CN) |
Industry Applications
Use it for radial vibration monitoring on high-speed rotating equipment, thrust position measurement on axial flow compressors, and eccentricity monitoring on large motors. The robust stainless steel case and PPS tip withstand harsh conditions, while the 5.0 m cable length simplifies routing to the Proximitor sensor.
Installation & Setup Guidance
For optimal performance, mount the probe with the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) from the target. Use 3-conductor shielded triad cable for field wiring, with conductor sizes from 0.2 to 1.5 mm² (16 to 24 AWG). Maximum field wiring length between the Proximitor sensor and monitor is 305 meters (1,000 feet). Ensure the probe is not pressure tested prior to installation; contact the custom design department if a pressure seal test is required.
Maintenance & Reliability
Periodically inspect the probe cable and connector for signs of wear or damage. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. The probe maintains less than 3% change in Average Scale Factor when tested in 93% humidity per IEC 68-2-3 for up to 56 days, ensuring stable performance in humid environments.
Compatibility & Integration
This 5-meter probe is designed for use exclusively with the 5 meter Proximitor sensor. For intrinsically safe installations, use with approved zener barriers per drawing 141092 or galvanic isolators. For non-incendive circuits, follow drawing 140979. The probe supports Class I, Zone 0 and Zone 2 hazardous area classifications.
Selection Guide & Purchasing Advice
When selecting a replacement or upgrade, verify the thread size (3/8-24 UNF) and total length requirements for your application. The 330102-11-45-50-11-CN is a standard probe with Country Specific Approval (CN). Our team can help confirm compatibility with your existing monitoring system.


Availability & Condition at AutoDCSTech
| Part Number | 330102-11-45-50-11-CN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
