Product Overview
When unexpected machine vibrations lead to costly downtime, the Bently Nevada 330707-00-62-90-11-05 3300 XL 11 mm Proximity Probes provide the precise, reliable measurements needed for predictive maintenance. Designed for harsh industrial environments, this probe offers robust construction with a polyphenylene sulfide (PPS) tip and 304 stainless steel case, ensuring long-term accuracy in vibration monitoring applications.
Technical Specifications
| Parameter |
Value |
| Probe Type |
3300 XL 11 mm Proximity Probe |
| Thread |
5/8-18 UNF |
| Unthreaded Length |
0 in |
| Overall Case Length |
6.2 in |
| Total Cable Length |
9.0 meters (29.5 ft) |
| Connector |
Miniature coaxial ClickLoc with protector, FluidLoc cable |
| Agency Approval |
Multiple Approvals |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| Cable Specification |
75 Ω triaxial, FEP insulated |
| DC Resistance (9m) |
8.5 ± 1.1 ohms (center to outer) |
| Operating & Storage Temp |
-52°C to +177°C (-62°F to +351°F) |
| Max Thread Engagement (5/8-18) |
0.938 in |
| Max Probe Case Torque |
45.2 N·m (400 in·lb) |
| Recommended Torque |
15.2 N·m (133 in·lb) |
| Connector Torque (max) |
0.565 N·m (5 in·lb) |
| Min Bend Radius |
25.4 mm (1.0 in) |
| Shipping Weight |
0.17 kg |
Installation and Setup Guidance
Correct installation of the Bently Nevada 330707-00-62-90-11-05 3300 XL 11 mm Proximity Probes is critical for accurate readings. Use the recommended torque of 15.2 N·m to avoid damaging the probe case or thread. Ensure the thread engagement does not exceed 0.938 in for the 5/8-18 thread. For the connector, apply only finger tightness (max 0.565 N·m) to prevent connector damage. The probe cable has a minimum bend radius of 25.4 mm; avoid sharp bends to preserve cable integrity. When mounting, verify that the probe tip is clean and the target surface is perpendicular.
Maintenance and Reliability
To ensure long-term reliability of the Bently Nevada 330707-00-62-90-11-05 3300 XL 11 mm Proximity Probes, perform periodic inspections of the probe tip for wear or contamination. The Viton O-ring pressure seal can degrade if exposed to temperatures below -34°C (-30°F), which may cause premature failure. Keep the probe within its rated temperature range (-52°C to +177°C) and avoid mechanical stress on the cable. The 304 stainless steel case resists corrosion, but regular visual checks for physical damage are recommended. Proper maintenance prevents false readings and extends sensor life.
Failure Mode Analysis: Avoiding Common Problems
One frequent issue with proximity probes is cable fatigue from repeated bending. The Bently Nevada 330707-00-62-90-11-05 3300 XL 11 mm Proximity Probes use a 75 Ω triaxial FEP-insulated cable designed for durability, but exceeding the 25.4 mm bend radius can still cause failure. Another common failure is overtightening the probe case; the maximum torque of 45.2 N·m should never be exceeded, and the recommended 15.2 N·m is best for consistent performance. Temperature extremes can compromise the pressure seal; if the probe experiences temperatures below -34°C, the O-ring may leak, reducing measurement accuracy. Always verify the ambient conditions before installation.
Selection Guide and Purchasing Advice
When selecting the Bently Nevada 330707-00-62-90-11-05 3300 XL 11 mm Proximity Probes, confirm your required thread (5/8-18 UNF) and total cable length (9 meters). This model includes a miniature coaxial ClickLoc connector with a protector and FluidLoc cable for reliable signal transmission in wet environments. For assistance with specific application requirements or to verify compatibility with your monitoring system, contact the experts at ubest101. We stock genuine Bently Nevada parts to minimize your downtime.