Product Overview
In rotating machinery, early detection of shaft vibration is critical to prevent catastrophic failure. The Bently Nevada 330709-000-230-50-12-05 3300 XL 11 mm Proximity Probe offers precise, non-contact measurement of shaft displacement and vibration, enabling predictive maintenance and reducing unplanned downtime. This probe is part of the trusted 3300 XL series, engineered for harsh industrial environments.
Technical Specifications
Key parameters of the Bently Nevada 330709-000-230-50-12-05 include:
- Probe Tip Material: Polyphenylene sulfide (PPS)
- Probe Case Material: AISI 304 stainless steel (SST)
- Thread: M16 x 1.5
- Total Length: 5.0 meters (16.4 feet) – designed for use with 5-meter Proximitor Sensor
- Temperature Range: -52°C to +177°C (-62°F to +351°F)
- Cable: 75 Ω triaxial, FEP insulated, with miniature coaxial ClickLoc connector and FluidLoc cable option
- Probe DC Resistance: 7.2 ± 0.8 ohms (5.0 m probe)
These specifications ensure reliable performance in high-temperature and high-vibration environments.
Industry Applications
The Bently Nevada 330709-000-230-50-12-05 is ideal for monitoring critical rotating assets such as steam turbines, compressors, pumps, and generators. Its robust design withstands extreme temperatures and physical stress, making it suitable for oil & gas, power generation, petrochemical, and manufacturing plants. By using this probe, operators can detect shaft misalignment, imbalance, and bearing wear early, preventing costly repairs.
Installation Guidelines
Proper installation is essential for accurate measurements. The M16 x 1.5 thread requires a recommended torque of 21.1 N•m (187 in•lb) for the probe case. The connector-to-connector torque should be finger tight, with a maximum of 0.565 N•m (5 in•lb). Ensure the probe tip is clean and free from debris. The minimum bend radius of the cable is 25.4 mm (1.0 in). For best performance, avoid exposing the probe to temperatures below -34°C (-30°F) during installation to prevent pressure seal failure.
Maintenance and Reliability
To maximize probe life and measurement accuracy, follow these best practices:
- Regularly inspect the probe cable for wear or damage, especially near connectors.
- Keep the probe tip and target surface clean to avoid erroneous readings.
- Monitor operating temperatures; if ambient exceeds -52°C or +177°C, review the temperature schedule for appropriate classification.
- Periodically verify probe DC resistance to ensure it remains within 7.2 ± 0.8 ohms.
With proper care, the Bently Nevada 330709-000-230-50-12-05 delivers long-term reliability and minimizes total cost of ownership.
Selection Guide and Purchasing Advice
When selecting a replacement or new probe, confirm your Proximitor sensor compatibility – the 5.0 meter probe works with a 5-meter Proximitor. Check cable type and connector options. The 330709-000-230-50-12-05 contains a miniature coaxial ClickLoc connector and FluidLoc cable. For assistance, contact UBEST Automation (ubest101) to verify fit and availability.