Product Overview: The Bently Nevada 330709-000-040-10-11-00 3300 XL 11 mm Proximity Probe
The Bently Nevada 330709-000-040-10-11-00 is a high-performance 3300 XL 11 mm proximity probe designed for accurate shaft displacement and position measurements in rotating machinery. This model features a 1.0-meter (3.3 feet) total length with a miniature coaxial ClickLoc connector and FluidLoc cable, ensuring reliable signal transmission in demanding industrial environments. Ideal for upgrading older probes, the 330709-000-040-10-11-00 provides enhanced durability and consistent performance.
Technical Specifications Breakdown
The Bently Nevada 330709-000-040-10-11-00 delivers precise electrical and mechanical characteristics critical for vibration monitoring. Below are key specifications:
| Parameter |
Value |
| Probe DC Resistance (1.0 m length) |
5.9 ± 0.5 ohms (center conductor to outer conductor) |
| Cross-talk Limitation – Flat Target Diameter (min) |
30.5 mm (1.2 in) |
| Cross-talk Limitation – Shaft Diameter (min) |
152 mm (6.0 in) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable Specification |
75 Ω triaxial, FEP insulated (1 m length) |
| Probe Case Thread |
M16 x 1.5 |
| Maximum Thread Engagement |
24 mm |
| Probe Case Torque (Recommended) |
21.1 N·m (187 in·lb) |
| Probe Case Torque (Maximum) |
63.3 N·m (560 in·lb) |
| Connector-to-connector Torque (Maximum) |
0.565 N·m (5 in·lb) |
| Operating Temperature Range |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature Range |
-52°C to +177°C |
Installation & Setup Guidance
Proper installation of the Bently Nevada 330709-000-040-10-11-00 ensures accurate readings and long service life. Use the M16 x 1.5 thread with a maximum engagement of 24 mm. Tighten the probe case to the recommended torque of 21.1 N·m (187 in·lb) – do not exceed 63.3 N·m (560 in·lb). For the ClickLoc connector, apply finger-tight torque only; maximum torque is 0.565 N·m (5 in·lb). The minimum bend radius for the cable is 25.4 mm (1.0 in), whether armored or not. Ensure the target surface is clean and the shaft diameter meets the minimum recommended 152 mm to avoid cross-talk interference.
Maintenance & Reliability
The Bently Nevada 330709-000-040-10-11-00 is built with a PPS tip and 304 SST case for long-term reliability in harsh environments. Its wide operating temperature range (-52°C to +177°C) suits many industrial applications, but avoid prolonged exposure below -34°C (-30°F) as it may cause premature pressure seal failure. The probe supports multiple temperature classifications for hazardous areas (EPL Ga/Gc/Dc) with ambient limits from -55°C up to +232°C depending on classification. Regular visual inspection of the cable and connector for damage is recommended; no routine calibration is required for the probe itself.
Troubleshooting & Common Issues
Common issues with proximity probes often stem from cross-talk or temperature extremes. The Bently Nevada 330709-000-040-10-11-00 minimizes cross-talk when used with target diameters of at least 30.5 mm (flat) or shaft diameters of 152 mm. If readings are unstable, verify that the probe tip is not contacting the target and that the gap is within the linear range. In high-temperature environments, ensure the probe temperature classification matches your application – e.g., T3 rated for -55°C to +120°C ambient. Avoid tightening the connector beyond 0.565 N·m to prevent damage.
Selection Guide & Purchasing Advice
When selecting the Bently Nevada 330709-000-040-10-11-00, verify that the total probe length (1.0 meter) and connector type (miniature coaxial ClickLoc with FluidLoc cable) meet your system requirements. This model does not include armor and does not require agency approval (option 00). For compatible extension cables and condition monitoring modules, consult your system manual. UBEST Automation (ubest101) stocks this exact probe and related Bently Nevada spares for fast delivery.