Product Overview
The Bently Nevada 330708-00-10-50-11-05 is a precision 3300 XL 11 mm Proximity Probe designed for reliable vibration and position monitoring in industrial rotating machinery. This probe features a Polyphenylene sulfide (PPS) tip and an AISI 304 stainless steel case for durability in harsh environments. With a total length of 5.0 meters (16.4 feet) and a Miniature coaxial ClickLoc connector with FluidLoc cable, it offers secure signal transmission. The 330708-00-10-50-11-05 operates in temperatures from -51°C to +177°C, making it suitable for extreme conditions.
Technical Specifications
Key parameters of the Bently Nevada 330708-00-10-50-11-05 are derived from manufacturer data:
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel (SST)
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Cable: 75 Ω triaxial, FEP insulated, 5.0 m total length
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DC Resistance (5 m probe): 7.2 ± 0.8 ohms (center to outer conductor)
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Temperature Range: -51°C to +177°C (-60°F to +351°F) operating and storage
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Probe Case Thread: 5/8-18 UNF, max engagement 0.938 in
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Recommended Torque: 15.2 N·m (133 in·lb) for 5/8-18 case; connector finger tight, max 0.565 N·m
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Minimum Bend Radius: 25.4 mm (1.0 in)
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Shipping Weight: 0.17 kg
Application & Use Cases
The 330708-00-10-50-11-05 excels in critical machinery monitoring where precise shaft displacement and vibration measurements are required. Typical applications include steam turbines, compressors, pumps, and generators in industries such as power generation, oil & gas, and petrochemical. The wide temperature range and robust sealing allow use in high-heat areas like gas turbine enclosures. Its 5/8-18 UNF thread and 5.0 m cable length facilitate easy integration into existing Bently Nevada monitoring systems, reducing installation time and cost.
Installation & Setup Guidance
Proper installation ensures optimal performance of the Bently Nevada 330708-00-10-50-11-05. Use the recommended probe case torque of 15.2 N·m (133 in·lb) for the 5/8-18 thread. Apply the connector torque only finger tight, with a maximum of 0.565 N·m (5 in·lb) to avoid damage. The minimum bend radius of 25.4 mm (1.0 in) must be maintained to prevent cable stress. Ensure the probe tip is clean and free of debris before insertion. For pressure integrity, note that the probe uses a Viton O-ring seal; it is not pressure tested before shipment, so verify sealing requirements with the application engineer if differential pressure is a concern.
Maintenance & Reliability
The 330708-00-10-50-11-05 is built for extended service life in demanding environments. The PPS tip and 304 SST case resist corrosion and wear. Regular inspection of the cable and connector for physical damage is recommended. While the probe can tolerate temperatures from -51°C to +177°C, exposing it below -34°C (-30°F) may accelerate pressure seal failure. Periodic verification of DC resistance (7.2 ± 0.8 ohms at 5 m) can indicate cable integrity. Following the recommended torque and bend radius extends reliability and reduces unplanned downtime, contributing to long-term cost savings.
Selection Guide
When selecting the Bently Nevada 330708-00-10-50-11-05, verify the thread size (5/8-18 UNF) and probe length match your mounting requirements. The 5.0 m cable with Miniature coaxial ClickLoc connector suits most standard installations. For applications requiring a different cable length or connector type, consult UBEST Automation for alternatives. Ensure the operating environment stays within -51°C to +177°C. UBEST Automation offers genuine Bently Nevada parts with fast shipping and technical support to help you choose the right configuration.