Product Introduction
When unexpected vibration threatens machinery uptime, the Bently Nevada 330710-000-050-50-02-05 3300 XL 11 mm Proximity Probes provide precise rotor displacement measurements. This proximity probe is engineered for continuous monitoring in critical rotating equipment, helping detect issues before catastrophic failure. Designed for harsh industrial environments, the probe features a polyphenylene sulfide (PPS) tip and a 304 stainless steel case, ensuring durability and reliable performance.
Technical Specifications
The 330710-000-050-50-02-05 is a 5.0-meter probe with a miniature coaxial ClickLoc connector and standard cable. Below are key specifications derived from the product data:
| Specification |
Value |
| Probe dc Resistance (5.0m) |
7.2 ± 0.8 ohms |
| Cross-talk Limitation (Flat Surface) |
Minimum 30.5 mm (1.2 in) diameter |
| Cross-talk Limitation (Shaft) |
Minimum 152 mm (6.0 in) diameter |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specification |
75 Ω triaxial, FEP insulated |
| Probe Case Torque (M16x1.5) |
63.3 N·m (560 in·lb) |
| Connector-to-connector Torque (Max) |
0.565 N·m (5 in·lb) |
| Minimum Bend Radius (with or without SST armor) |
25.4 mm (1.0 in) |
| Probe Case Thread |
M16x1.5 |
| Maximum Length of Thread Engagement |
24 mm |
| Operating and Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
Failure Mode Analysis and Benefits
Vibration monitoring systems often fail due to cable damage, connector issues, or thermal stress. The Bently Nevada 330710-000-050-50-02-05 mitigates these risks with an armored cable option (indicated by the 'with armor' designation in the part number) and a wide temperature range from -52°C to +177°C. The miniature coaxial ClickLoc connector ensures a secure, finger-tight connection, while the specified torque limits prevent overtightening and connector damage. This probe also includes multiple agency approvals (option 05), making it suitable for diverse industrial safety standards.
Industry Application Scenarios
The 330710-000-050-50-02-05 is ideal for monitoring critical rotating machinery such as steam turbines, centrifugal compressors, and large pumps. In these applications, the probe measures shaft radial vibration and axial position, providing early warning of imbalances, misalignment, or bearing wear. The 5.0-meter cable length allows for flexible installation in confined spaces, while the 11 mm sensor diameter delivers high sensitivity for precise displacement readings.
Installation and Setup Guidance
Proper installation is crucial for accurate measurements. Use the recommended torque of 63.3 N·m for the M16x1.5 thread to secure the probe case. For the connector, apply only finger tight torque (maximum 0.565 N·m) to avoid damaging the miniature coaxial ClickLoc. Avoid bending the cable below the minimum bend radius of 25.4 mm. When mounting, ensure the target surface diameter is at least 30.5 mm for flat surfaces and the shaft diameter is at least 152 mm to minimize cross-talk. The probe can operate in temperatures from -52°C to +177°C, but exposure below -34°C may cause premature pressure seal failure.
Maintenance and Reliability
Regularly inspect the cable for cuts or abrasions, especially at entry points where flexing occurs. Verify connector integrity by checking for loose connections or corrosion. The probe tip (PPS) is resistant to many chemicals, but avoid contact with solvents that may degrade the material. The 304 stainless steel case provides excellent corrosion resistance in most industrial environments. For long-term reliability, store the probe within its specified temperature range and avoid impacts that could damage the internal sensor.
Selection Guide and Purchasing Advice
When ordering a replacement, verify the exact model number 330710-000-050-50-02-05 to ensure compatibility with your five-meter Proximitor Sensor. The probe includes a standard cable and the miniature ClickLoc connector. For additional cable lengths or connector options, consult the full 3300 XL series documentation. For reliable sourcing and availability, contact UBEST Automation (ubest101). We stock genuine Bently Nevada parts and provide fast shipping to minimize downtime.