Introduction
In critical rotating machinery monitoring, reliable proximity probes are essential. The Bently Nevada 330709-000-080-90-11-05 3300 XL 11 mm Proximity Probe delivers precise measurements even in harsh environments. Designed for industrial applications, this probe features a robust build with a polyphenylene sulfide (PPS) tip and AISI 304 stainless steel case, ensuring long-term durability. The 9.0-meter (29.5 feet) cable with a miniature coaxial ClickLoc connector provides secure and easy installation.
Technical Specifications
The Bently Nevada 330709-000-080-90-11-05 offers critical parameters for demanding conditions:
-
Probe DC Resistance: 8.5 ± 1.1 ohms at 9.0 m length
-
Cross-talk Limitation: Minimum target diameter 30.5 mm (1.2 in) flat surface; minimum shaft diameter 152 mm (6.0 in)
-
Probe Tip Material: Polyphenylene sulfide (PPS)
-
Probe Case Material: AISI 304 stainless steel
-
Probe Cable: 75 ohm triaxial, fluoroethylene propylene (FEP) insulated
-
Probe Case Torque (M16x1.5): Recommended 21.1 N·m (187 in·lb); maximum 63.3 N·m (560 in·lb)
-
Connector-to-connector Torque: Recommended finger tight; maximum 0.565 N·m (5 in·lb)
-
Minimum Bend Radius: 25.4 mm (1.0 in)
-
Temperature Range: Operating and storage -52°C to +177°C (-62°F to +351°F)
-
Temperature Classifications: For EPL Ga and Gc: T1 (ambient -55°C to +232°C) through T5; For EPL Dc: T280°C through T90°C with specific ambient limits
Industry Applications
The Bently Nevada 330709-000-080-90-11-05 excels in vibration monitoring for steam turbines, compressors, and pumps. Its wide temperature range and multiple approvals make it suitable for hazardous area installations. The probe’s resistance to cross-talk ensures accurate readings even in close proximity to other probes.
Installation & Setup Guidance
Proper installation is vital for performance. For the M16x1.5 thread, apply recommended case torque of 21.1 N·m. The maximum length of thread engagement is 24 mm. Tighten connectors hand-tight only to avoid damage. Maintain a minimum bend radius of 25.4 mm to prevent cable stress. Exposing the probe to temperatures below -34°C may cause pressure seal failure, so follow the temperature schedule carefully.
Selection Guide & Purchasing Advice
When selecting a replacement probe, verify cable length (9.0 m here), connector type (ClickLoc), and approval requirements. The Bently Nevada 330709-000-080-90-11-05 comes with multiple approvals. For genuine parts and expert support, rely on UBEST Automation (ubest101). Ensure your system compatibility before ordering.