Product Introduction
When unexpected machine shutdowns cost thousands per hour, precise vibration monitoring becomes essential. The Bently Nevada 330709-000-040-90-01-00 3300 XL 11 mm Proximity Probe provides accurate shaft displacement measurements, helping detect early signs of bearing wear or imbalance. Designed for harsh industrial environments, this probe withstands temperatures from -52°C to +177°C and delivers consistent performance.
Technical Specifications
| Parameter |
Value |
| Probe Type |
3300 XL 11 mm |
| Thread Size |
M16 x 1.5 |
| Overall Case Length |
40 mm |
| Total Length (including cable) |
9.0 meters (29.5 feet) |
| Cable Type |
Miniature coaxial ClickLoc with connector protector |
| Probe DC Resistance (9m) |
8.5 ± 1.1 ohms |
| Temperature Range (operating/storage) |
-52°C to +177°C |
| Probe Case Material |
AISI 304 stainless steel |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Recommended Torque (probe case) |
21.1 N·m |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Cross-talk Limitation (flat target min diameter) |
30.5 mm |
| Shaft Diameter (recommended min) |
152 mm |
Industry Applications
This probe excels in steam turbines, compressors, gearboxes, and large pumps where reliable proximity sensing is critical. Its 9-meter cable allows flexible routing to monitoring systems. The cross-talk limitation ensures accurate readings even in close-proximity installations.
Installation & Setup Guidance
Proper installation is key. Thread the M16x1.5 case into the mounting hole, ensuring thread engagement does not exceed 24 mm. Apply recommended torque of 21.1 N·m (187 in·lb). Avoid bending the cable tighter than 25.4 mm radius to prevent damage. Use the miniature coaxial ClickLoc connector for secure termination.
Maintenance & Reliability
The stainless steel case and PPS tip resist corrosion and wear. Avoid prolonged exposure below -34°C to protect the pressure seal. Regularly inspect the cable for cuts or kinks. The probe's rugged design minimizes drift, reducing calibration frequency.
Selection Guide & Purchasing Advice
When selecting, verify your system's required probe length and connector type. The Bently Nevada 330709-000-040-90-01-00 includes a 9m cable and ClickLoc connector. For other configurations, contact UBEST Automation for assistance. Ensure your application's ambient temperature falls within the probe's classification (see temperature schedule).