Product Introduction
When cross-talk and temperature extremes threaten vibration monitoring accuracy, the Bently Nevada 330709-000-080-10-01-00 3300 XL 11 mm Proximity Probe provides reliable performance. This non-contact sensor, built with a polyphenylene sulfide (PPS) tip and AISI 304 stainless steel case, delivers precise shaft displacement measurements in critical rotating machinery. With a DC resistance of 5.9 ± 0.5 ohms and a 75 ohm triaxial FEP insulated cable, it ensures signal integrity even in harsh environments.
Technical Specifications Breakdown
Key parameters of the Bently Nevada 330709-000-080-10-01-00 include:
| Parameter |
Value |
| Probe DC Resistance (RPROBE) |
5.9 ± 0.5 Ω (1.0 m length) |
| Probe Case Torque (M16x1.5) |
Max 63.3 N·m, Recommended 21.1 N·m |
| Connector Torque |
Finger tight; Max 0.565 N·m |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Probe Temperature Range |
-52°C to +177°C (-62°F to +351°F) |
| Cable Specification |
75 Ω triaxial, FEP insulated |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
These specs ensure the probe withstands high torque during installation and maintains linearity across a wide temperature range.
Industry Applications
The Bently Nevada 330709-000-080-10-01-00 excels in turbine, compressor, and pump vibration monitoring. For example, in a steam turbine, the probe detects shaft radial vibration, preventing costly unplanned outages. Its cross-talk limitation (recommended minimum target diameter 30.5 mm) allows reliable operation where multiple probes share a common target. The probe's operating temperature range suits both indoor and outdoor installations in power generation and petrochemical plants.
Installation & Setup Guidance
Mount the Bently Nevada 330709-000-080-10-01-00 using the M16x1.5 thread with a maximum engagement length of 24 mm. Apply the recommended torque of 21.1 N·m (187 in·lb) to secure the case without over-tightening. For the miniature coaxial ClickLoc connector, tighten only finger tight (max 0.565 N·m). Maintain a minimum bend radius of 25.4 mm for the cable to prevent internal damage. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature pressure seal failure.
Maintenance & Reliability
Regularly inspect the cable and connector for wear, especially near bend points. The Bently Nevada 330709-000-080-10-01-00 requires no periodic calibration if installed correctly, reducing total cost of ownership. Store the probe in its original packaging at temperatures between -55°C and +177°C. For hazardous locations, note the temperature schedules (T1 to T5 for EPL Ga/Gc and Dc) to ensure compliance. This probe's robust construction minimizes downtime, aligning with a failure-mode prevention approach.
Troubleshooting & Common Issues
Common problems with proximity probes include cross-talk and signal drift. The Bently Nevada 330709-000-080-10-01-00 addresses cross-talk by requiring a minimum flat target diameter of 30.5 mm and a minimum shaft diameter of 152 mm. To avoid temperature-induced errors, operate within the -52°C to +177°C range. If the probe resistance deviates from 5.9 ± 0.5 ohms, check cable integrity and connector tightness. For persistent noise, verify the cable is kept away from high-voltage lines. These measures ensure long-term measurement accuracy.
For further assistance, contact UBEST Automation (available at ubest101) for application support and compatible accessories.