Product Introduction
The Bently Nevada 330709-000-080-90-01-00 is a 3300 XL 11 mm proximity probe designed for precise vibration and position measurement in rotating machinery. This model features an M16x1.5 thread, 0 mm unthreaded length, 80 mm overall case length, and a 9.0-meter (29.5 feet) total length with a miniature coaxial ClickLoc connector. Built with a polyphenylene sulfide (PPS) tip and AISI 304 stainless steel case, it delivers reliable performance in harsh industrial environments.
Technical Specifications Breakdown
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Probe dc Resistance: 8.5 ± 1.1 ohms (center conductor to outer conductor at 9.0m length)
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Cross-talk Limitation: Requires minimum target diameter of 30.5 mm (flat surface) and minimum shaft diameter of 152 mm.
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Temperature Range: Operating and storage from -52°C to +177°C (-62°F to +351°F)
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Cable Specification: 75 Ω triaxial, FEP insulated probe cable (1, 5, or 9 meter options)
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Probe Case Torque: Recommended 21.1 N·m (187 in·lb) for M16x1.5 threads
These specs ensure accurate signal transmission and mechanical integrity under demanding conditions.
Real-World Applications
The Bently Nevada 330709-000-080-90-01-00 is ideal for monitoring turbine, compressor, and pump shaft vibrations in power generation, oil & gas, and petrochemical plants. Its 9-meter cable length allows flexible placement away from harsh vibration zones. The cross-talk limitation ensures reliable readings even on smaller shafts, minimizing false alarms and downtime.
Installation & Setup Guidance
When installing the 330709-000-080-90-01-00, follow these practical tips:
- Apply recommended probe case torque of 21.1 N·m (finger-tight connector torque; max 0.565 N·m for connector).
- Maintain minimum bend radius of 25.4 mm for the cable to prevent damage.
- Ensure target surface is flat and at least 30.5 mm in diameter; shaft diameter must be ≥152 mm.
- Thread engagement max 24 mm; do not exceed.
Maintenance & Reliability
To maximize service life, regularly inspect the probe cable for cracks or fraying, especially near the connector. Avoid exposing the probe to temperatures below -34°C, as this may cause premature pressure seal failure. The FEP cable insulation offers excellent chemical and temperature resistance, reducing replacement frequency. Proper torque during installation prevents thread galling and ensures a stable vibration reading.
Selection Guide & Purchasing Advice
Before purchasing the Bently Nevada 330709-000-080-90-01-00, verify your system voltage requirements and connector type. This unit includes a miniature coaxial ClickLoc connector with protector. For additional cable lengths (1 or 5 meters) or armor options, contact UBEST Automation. We stock genuine Bently Nevada probes to ensure OEM compatibility and long-term reliability.