Product Overview: Bently Nevada 330709-000-070-50-02-00 3300 XL 11 mm Proximity Probe
The Bently Nevada 330709-000-070-50-02-00 is a precision 3300 XL 11 mm Proximity Probe designed for reliable vibration and position sensing in rotating machinery. This non-contact sensor offers a 5.0 meter (16.4 feet) total probe length and is manufactured to exacting standards in the USA. As a direct replacement for earlier probe versions, it ensures seamless integration with five-meter Proximitor sensors, making it a key component for upgrading legacy monitoring systems.
Technical Specifications
| Parameter |
Value |
| Unthreaded Length Option |
000 = 0 mm |
| Overall Case Length Option |
070 = 70 mm |
| Total Length Option |
50 = 5.0 meters (16.4 ft) |
| Connector Type |
Miniature coaxial ClickLoc connector, standard cable |
| Agency Approval Option |
00 = Not required |
| Probe DC Resistance (5.0 m) |
7.2 ± 0.8 ohms |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Cable Specification |
75 Ω triaxial, FEP insulated (1, 5, or 9 m) |
| Probe Case Torque (M16x1.5) |
63.3 N·m (560 in·lb) |
| Connector-to-Connector Torque |
Finger tight (max 0.565 N·m / 5 in·lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Probe Case Thread |
M16x1.5 |
| Max Length of Thread Engagement |
24 mm |
| Operating & Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
Real-World Applications
The Bently Nevada 330709-000-070-50-02-00 is ideal for monitoring radial vibration and axial position in turbines, compressors, pumps, and other rotating equipment. Its 11 mm probe diameter and 5.0 meter cable length suit installations where the Proximitor sensor is mounted remotely. In petrochemical plants, this probe withstands harsh environments with its -52°C to +177°C temperature range and corrosion-resistant stainless steel case. For cross-talk sensitive applications, maintain a minimum flat target size of 30.5 mm and shaft diameter of 152 mm as specified.
Installation and Setup Tips
When installing the Bently Nevada 330709-000-070-50-02-00, apply the recommended probe case torque of 63.3 N·m for M16x1.5 threads. Always use finger-tight torque for the connector, not exceeding 0.565 N·m, to avoid damage. The cable bend radius must not drop below 25.4 mm to preserve triaxial integrity. If ambient temperatures fall below -34°C, expect potential seal degradation; take precautions in cold starts. This probe is designed exclusively for use with five-meter Proximitor sensors—verify compatibility before installation.
Troubleshooting Common Issues
Signal noise or cross-talk often arises when target surfaces are too small. Ensure the flat target diameter exceeds 30.5 mm and shaft diameter exceeds 152 mm. If resistance readings deviate from 7.2 ± 0.8 ohms, inspect cable continuity and connector seating. Temperature extremes near -52°C or +177°C may cause material stress; avoid rapid thermal cycling. The Bently Nevada 330709-000-070-50-02-00 uses a triaxial cable—never substitute with standard coaxial cable, as impedance mismatch degrades performance.
Why Choose UBEST Automation?
UBEST Automation is a trusted supplier of industrial automation spares, including the Bently Nevada 330709-000-070-50-02-00 3300 XL Proximity Probe. We source genuine parts to ensure reliability and performance in critical monitoring systems. For detailed specifications or ordering assistance, visit us at ubest101.myshopify.com.