Product Introduction
When machinery vibration threatens process uptime, the Bently Nevada 330709-000-050-50-11-00 provides accurate proximity measurement for critical rotating equipment. This 3300 XL 11 mm Probe detects shaft displacement and eccentricity in turbines, compressors, and pumps. Manufactured in the U.S.A., it features a M16x1.5 thread, 50mm case length, and 5.0-meter total length with a miniature coaxial ClickLoc connector and FluidLoc cable. Designed for use with the five-meter Proximitor Sensor only, this probe delivers reliable data for condition monitoring.
Technical Specifications Breakdown
The Bently Nevada 330709-000-050-50-11-00 offers precise electrical and mechanical parameters:
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Probe dc Resistance: At 5.0 meters, the resistance from center conductor to outer conductor (RPROBE) is 7.2 ± 0.8 ohms, ensuring consistent signal integrity.
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Cross-talk Limitation: For flat surfaces, minimum recommended target diameter is 30.5 mm (1.2 in); for shaft monitoring, minimum shaft diameter is 152 mm (6.0 in).
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Materials: Probe tip uses polyphenylene sulfide (PPS); case is AISI 304 stainless steel; cable is 75 Ω triaxial with FEP insulation.
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Temperature Range: Operates and stores from -52°C to +177°C (-62°F to +351°F). Note: exposure below -34°C may cause premature pressure seal failure.
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Torque Specifications: Maximum rated probe case torque for M16x1.5 is 63.3 N·m (560 in·lb); recommended torque is 21.1 N·m (187 in·lb). Connector-to-connector torque is finger tight, maximum 0.565 N·m (5 in·lb).
Application Scenarios
The Bently Nevada 330709-000-050-50-11-00 excels in harsh industrial environments. In steam turbine monitoring, its 5-meter cable length suits installations where the Proximitor must be mounted remotely. The wide operating temperature range makes it ideal for high-temperature compressor trains. For large pumps, the cross-talk limitation ensures accurate measurements even in close-quarters installations. Its PPS tip resists chemical attack in oil and gas applications.
Installation & Setup Guidance
Proper installation of the Bently Nevada 330709-000-050-50-11-00 ensures reliable performance. Use the recommended torque of 21.1 N·m (187 in·lb) for the M16x1.5 thread to avoid stress on the probe case. The maximum thread engagement is 24 mm. Keep cable bend radius above 25.4 mm (1.0 in). For cross-talk avoidance, ensure the target flat surface diameter is at least 30.5 mm. Only mate this 5.0-meter probe with a 5-meter Proximitor Sensor.
Selection Guide & Purchasing Advice
Before purchasing the Bently Nevada 330709-000-050-50-11-00, verify your Proximitor sensor length matches the 5.0-meter total probe length. This model uses a miniature coaxial ClickLoc connector with a connector protector and FluidLoc cable. For other cable or connector options, contact UBEST Automation (ubest101) to confirm compatibility with your system. Our inventory includes genuine Bently Nevada parts with full traceability.