Product Introduction
When critical machinery requires precise vibration monitoring, the Bently Nevada 330709-000-080-90-01-05 provides accurate proximity sensing with robust construction. This 3300 XL 11 mm Proximity Probe features an M16x1.5 thread without armor, a 9.0-meter (29.5 feet) total length, and a miniature coaxial ClickLoc connector with protector. Manufactured in the U.S.A., the 330709-000-080-90-01-05 belongs to the trusted 3300 XL series and delivers reliable performance in demanding industrial environments.
Technical Specifications Breakdown
The Bently Nevada 330709-000-080-90-01-05 includes critical specifications that ensure accurate vibration measurement and long service life:
| Parameter |
Value |
| Probe DC Resistance (9m) |
8.5 ± 1.1 ohms |
| Recommended Minimum Target Size (flat) |
30.5 mm diameter |
| Recommended Minimum Shaft Diameter |
152 mm |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| Probe Cable Specification |
75 Ω triaxial, FEP insulated |
| Probe Case Torque (recommended) |
21.1 N·m (187 in·lb) |
| Operating Temperature Range |
-52°C to +177°C |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Agency Approval |
Multiple Approvals |
These specifications enable the Bently Nevada 330709-000-080-90-01-05 to withstand harsh conditions and provide consistent proximity measurement.
Applications & Use Cases
The Bently Nevada 330709-000-080-90-01-05 is ideal for vibration monitoring on turbines, compressors, pumps, and large motors. Its cross-talk limitation—requiring a minimum 152 mm shaft diameter—ensures reliable readings on larger rotating equipment. The probe's temperature schedule supports classifications from T1 to T5, making it suitable for explosive environments with proper certification. For example, in steam turbine bearing vibration monitoring, the 330709-000-080-90-01-05 offers stable output at high temperatures up to +177°C.
Maintenance & Reliability
Proper maintenance extends the service life of the Bently Nevada 330709-000-080-90-01-05. Avoid exposing the probe to temperatures below -34°C during storage or operation, as this can cause premature failure of the pressure seal. Use the recommended probe case torque of 21.1 N·m to prevent damage. Inspect the cable for sharp bends (minimum radius 25.4 mm) and ensure the connector is tightened only to finger tight plus 0.565 N·m maximum. Regular checks of the probe's DC resistance (8.5 ± 1.1 ohms) quickly confirm integrity.
Troubleshooting & Common Issues
Common issues with the Bently Nevada 330709-000-080-90-01-05 include cross-talk from nearby probes if target size is insufficient. Always adhere to the minimum flat target diameter of 30.5 mm. If readings become erratic, verify the connector torque and cable condition. The probe's 75 Ω triaxial cable is sensitive to moisture ingress; ensure the connector protector is fitted. For optimal performance, confirm the thread engagement does not exceed 24 mm. When sourcing replacement probes, trust ubest101 to supply genuine Bently Nevada 330709-000-080-90-01-05 units with full traceability.