Product Overview: Bently Nevada 330709-000-060-50-11-00 3300 XL 11 mm Proximity Probe
In critical rotating machinery applications, the Bently Nevada 330709-000-060-50-11-00 provides precise vibration measurement essential for preventing unplanned downtime. This 3300 XL 11 mm proximity probe is engineered for non-contact shaft vibration and position monitoring. With a 5.0 meter cable and miniature coaxial ClickLoc connector, it integrates seamlessly into existing monitoring systems, delivering reliable data for turbomachinery protection.
Key Technical Specifications
| Parameter |
Value |
| Probe Length |
5.0 meters |
| DC Resistance (RPROBE) |
7.2 ± 0.8 ohms |
| Operating Temperature Range |
-52°C to +177°C (-62°F to +351°F) |
| Thread Size |
M16 x 1.5 |
| Maximum Thread Engagement |
24 mm |
| Probe Case Material |
AISI 304 stainless steel |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Cable Type |
75 Ω triaxial FEP insulated |
| Connector Type |
Miniature coaxial ClickLoc with connector protector |
The Bently Nevada 330709-000-060-50-11-00 adheres to strict torque limits: connector-to-connector torque must not exceed 0.565 N•m to preserve electrical integrity. These specifications ensure long-term reliability in harsh environments.
Industry Applications and Use Cases
The Bently Nevada 330709-000-060-50-11-00 probe is ideal for steam turbines, gas turbines, compressors, and large pumps. Its 11 mm tip targets flat surfaces with a minimum recommended diameter of 30.5 mm. To minimize cross-talk, maintain a shaft diameter of at least 152 mm. The stainless steel case and PPS tip resist high temperatures and corrosive fluids, making this probe suitable for demanding industrial settings. The 5.0 meter length is specifically designed for use with the five meter Proximitor sensor.
Installation and Setup Guidance
For best results with the Bently Nevada 330709-000-060-50-11-00, start by verifying thread engagement: M16x1.5 thread allows up to 24 mm engagement. Use the recommended probe case torque of 21.1 N•m (187 in•lb), never exceeding 63.3 N•m (560 in•lb). Tighten the connector only finger tight, with a maximum torque of 0.565 N•m. Maintain a minimum cable bend radius of 25.4 mm to avoid damage. Avoid exposing the probe to temperatures below -34°C (-30°F) during installation, as this may compromise the pressure seal.
Maintenance and Reliability
Regular inspection of the Bently Nevada 330709-000-060-50-11-00 cable and connector ensures consistent performance. Check for cuts, kinks, or abrasion on the FEP insulation. The DC resistance should remain within 7.2 ± 0.8 ohms; any deviation may indicate damage. The probe operates reliably across a wide temperature range, but consult the temperature schedule for hazardous area classifications (EPL Ga/Gc/Dc). Periodically clean the probe tip to prevent debris buildup that could affect measurement accuracy.
Troubleshooting Common Issues
If the Bently Nevada 330709-000-060-50-11-00 produces erratic signals, first verify that the minimum shaft diameter of 152 mm is respected to reduce cross-talk. Check that the ClickLoc connector is fully engaged and torqued correctly. Ensure the probe is paired with a five meter Proximitor sensor—mismatched lengths cause measurement errors. For temperature-sensitive installations, refer to the classification schedule to select the appropriate probe variant. For genuine replacement parts, source from a trusted distributor like UBEST Automation.