Product Introduction
Upgrade your vibration monitoring system with the Bently Nevada 330709-000-040-50-02-05. This 3300 XL 11 mm proximity probe is designed for precise shaft displacement and vibration measurements in critical rotating machinery. It features a 5.0 meter (16.4 feet) cable length, miniature coaxial ClickLoc connector, and a robust construction with a PPS probe tip and 304 stainless steel case. Engineered for reliable performance in harsh industrial environments, this probe ensures accurate data for predictive maintenance and asset protection.
Technical Specifications
| Parameter |
Value |
| Unthreaded Length Option |
000 = 0 mm |
| Overall Case Length Option |
040 = 40 mm |
| Total Length Option |
50 = 5.0 meters |
| Probe DC Resistance (center to outer conductor) |
7.2 ± 0.8 ohms (at 5.0 m) |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Cable Specification |
75 Ω triaxial, fluoroethylene propylene (FEP) insulated |
| Probe Case Thread |
M16 x 1.5 |
| Maximum Thread Engagement |
24 mm |
| Recommended Probe Case Torque |
21.1 N·m (187 in·lb) |
| Operating and Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Relative Humidity |
0 to 95% non-condensing |
| Cross-talk Limitation (flat target) |
Minimum 30.5 mm (1.2 in) diameter |
| Shaft Diameter (minimum) |
152 mm (6.0 in) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Connector-to-connector torque |
Finger tight (max 0.565 N·m) |
Temperature Classification Schedule
For EPL Ga and Gc (Probe Only):
- T1: Ambient -55°C to +232°C
- T2: Ambient -55°C to +177°C
- T3: Ambient -55°C to +120°C
- T4: Ambient -55°C to +80°C
- T5: Ambient -55°C to +40°C
For EPL Dc:
- T280°C @ Ta: Ambient -55°C to +232°C
- T225°C @ Ta: Ambient -55°C to +177°C
- T170°C @ Ta: Ambient -55°C to +120°C
- T130°C @ Ta: Ambient -55°C to +80°C
- T105°C @ Ta: Ambient -55°C to +100°C
- T90°C @ Ta: Ambient -55°C to +40°C
Application Scenarios
The Bently Nevada 330709-000-040-50-02-05 excels in monitoring vibration and shaft position on steam turbines, centrifugal compressors, large electric motors, and other rotating equipment. Its wide temperature range and rugged construction make it suitable for both indoor and outdoor installations, even in areas with high ambient temperatures. The 5.0 meter cable length is optimized for use with matching 5-meter Proximitor sensors, ensuring accurate signal transmission.
Replacing older 3300 series probes with this upgrade provides extended temperature capability and improved cable durability, reducing total cost of ownership.
Installation & Setup Guidance
Thread the probe case (M16x1.5) into the mounting hole using the recommended torque of 21.1 N·m (187 in·lb). Do not exceed 63.3 N·m (560 in·lb) maximum torque. Ensure the probe tip is positioned with a gap that meets the target size requirements — a flat surface diameter of at least 30.5 mm (1.2 in) is recommended. The cable should be routed with a bend radius no smaller than 25.4 mm (1.0 in) to prevent damage. Connect the miniature coaxial ClickLoc connector securely (finger tight, max 0.565 N·m).
Selection Guide & Purchasing Advice
When selecting a replacement probe, verify that your existing Proximitor sensor supports a 5.0 meter cable length (the 330709-000-040-50-02-05 is designed exclusively for 5-meter Proximitor sensors). Also confirm the available thread and mounting depth (max 24 mm thread engagement). For authentic Bently Nevada parts with full warranty support, choose UBEST Automation as your trusted supplier.