Product Overview
The Bently Nevada 330141-08-50-12-05 is a high-performance 3300 XL 8 mm probe with armor, designed for reliable vibration and proximity measurements in industrial rotating machinery. This industrial automation module combines patented TipLoc and CableLoc technologies to deliver exceptional mechanical strength and resistance to oil leakage, reducing common failure modes such as cable pull-out and probe tip delamination.
Part of the trusted 3300 XL series, the 330141-08-50-12-05 features an overall case length of 0.8 inches (08) and a total length option of 5.0 meters (50). It comes with a miniature coaxial ClickLoc connector and FluidLoc cable (option 12), and meets CSA, ATEX, and IECEx approval standards (option 05). Made in the USA, this probe is engineered for long service life in demanding environments.
Technical Specifications Breakdown
Key performance parameters of the Bently Nevada 330141-08-50-12-05 ensure accurate and repeatable measurements:
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Nominal Probe DC Resistance (RPROBE): 8.73 ± 0.50 Ω for the 5.0 m probe length, measured from center conductor to outer conductor.
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±5% for standard 5 or 1 meter systems, including interchangeability error over the 80 mil linear range from 0°C to +45°C.
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Deviation from Best Fit Straight Line (DSL): Less than ±0.025 mm (±1 mil) for standard 5 or 1 meter systems at 0°C to +45°C.
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Probe Tip Material: Polyphenylene sulfide (PPS) for robust encapsulation and chemical resistance.
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Probe Case Material: AISI 303 or 304 stainless steel (SST) for corrosion resistance and durability.
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Probe Temperature Range: Standard probe operates from -52°C to +177°C; extended range tip up to +218°C.
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Pull Strength: CableLoc design provides 330 N (75 lbf) pull strength to prevent cable detachment.
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Relative Humidity: Less than 3% change in Average Scale Factor (ASF) when tested in 93% humidity per IEC 68-2-3 for 56 days.
These specs directly address common failure modes: the high pull strength reduces field failures from cable strain, while the FluidLoc option prevents oil wicking that can damage internal components.
Industry Applications
The Bently Nevada 330141-08-50-12-05 excels in applications where machine health monitoring is critical:
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Steam and gas turbines: Monitors shaft vibration and eccentricity, where the probe’s robust stainless steel case and TipLoc bonding withstand high temperatures and pressure.
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Centrifugal compressors: Provides accurate proximity measurement in oil-laden environments, thanks to the FluidLoc cable that prevents oil migration.
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Large pumps and fans: The 8 mm probe’s thicker PPS encapsulation resists physical abuse from debris or accidental contact, reducing unplanned downtime.
Installation & Setup Guidance
Proper installation ensures optimal performance of the 330141-08-50-12-05. The 5-meter probe is designed for use only with a 5-meter Proximitor sensor. Ensure the probe tip is clean and free of contaminants before mounting. Use appropriate anti-rotation features to prevent twisting of the FluidLoc cable. The miniature coaxial ClickLoc connector provides a secure, quick connection; verify locking click is heard. For environments below –34°C, note that premature failure of the pressure seal may occur; avoid such conditions or use extended temperature range options.
Selection Guide & Purchasing Advice
When selecting the Bently Nevada 330141-08-50-12-05, verify that your Proximitor sensor matches the 5-meter cable length. For applications requiring higher temperature resistance, consider the extended temperature range variant. The CSA, ATEX, and IECEx approvals make this probe suitable for hazardous areas. PLC Source PRO stocks this exact model with fast shipping from North American warehouses. Always confirm part number suffix compatibility with your system.