Product Introduction
When machine vibration threatens operational integrity, the Bently Nevada 330708-00-10-50-02-05 3300 XL 11 mm Proximity Probes provide the precision measurement needed to prevent catastrophic failures. This probe is part of the trusted 3300 XL series, designed for reliable vibration and position monitoring in critical rotating machinery. Manufactured in the USA, this model features a 5/8-18 UNF thread and a 5.0 meter cable length, making it ideal for standard proximity measurements.
Technical Specifications Breakdown
Key parameters of the Bently Nevada 330708-00-10-50-02-05 ensure accurate and durable performance:
- Probe Tip Material: Polyphenylene sulfide (PPS) for chemical resistance and durability.
- Probe Case Material: AISI 304 stainless steel (SST) for corrosion resistance.
- Cable: 75 Ω triaxial, FEP-insulated, 5.0 meters long. Designed for use with a five-meter Proximitor Sensor only.
- Operating Temperature: -51°C to +177°C (-60°F to +351°F).
- Probe DC Resistance: 7.2 ± 0.8 ohms (from center to outer conductor).
- Maximum Thread Engagement: 0.938 inches for 5/8-18 thread.
- Recommended Torque for Probe Case: 15.2 N•m (133 in•lb).
- Minimum Bend Radius: 25.4 mm (1.0 in).
- Shipping Weight: 0.17 kg.
Industry Applications
The Bently Nevada 330708-00-10-50-02-05 excels in real-world applications where precise shaft displacement measurement is critical. For example, in steam turbines, these probes monitor bearing vibrations to detect imbalance or misalignment before they cause downtime. In large pumps, the probe provides continuous data for predictive maintenance programs. Additionally, in gearboxes, the high-temperature tolerance (–51°C to +177°C) ensures reliable operation even in harsh environments.
Installation & Setup Guidance
Proper installation of the Bently Nevada 330708-00-10-50-02-05 is vital for accurate readings. Follow these guidelines:
- Thread Engagement: Do not exceed 0.938 inches for the 5/8-18 thread to avoid damage.
- Torque: Apply a recommended torque of 15.2 N•m (133 in•lb) to the probe case. Maximum rated torque is 45.2 N•m (400 in•lb).
- Connector Torque: Use finger tight for connector-to-connector; maximum 0.565 N•m (5 in•lb).
- Cable Bend: Ensure minimum bend radius of 25.4 mm (1.0 in) to prevent cable damage.
- Temperature Note: Avoid exposing the probe to temperatures below -34°C (-30°F) as it may cause premature pressure seal failure.
Maintenance & Reliability
The Bently Nevada 330708-00-10-50-02-05 is designed for long service life, but regular inspection of the cable and connector integrity ensures continued accuracy. The Viton O-ring seal maintains differential pressure; however, probes are not pressure tested before shipment. For applications requiring pressure verification, contact UBEST Automation for custom testing options. Operate within the temperature range to maximize reliability.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330708-00-10-50-02-05, verify that your system uses a five-meter Proximitor Sensor, as this probe is specifically designed for that length. Ensure the thread type (5/8-18 UNF) matches your mounting setup. For additional accessories or troubleshooting, check with UBEST Automation for available support. We recommend stocking spare probes for critical machinery to minimize downtime.