330140-10-20-12-00 Bently Nevada 3300 XL 8 mm Probe, 2.0 m

Product Overview: Bently Nevada 330140-10-20-12-00

The Bently Nevada 330140-10-20-12-00 is a 3300 XL 8 mm probe without armor, engineered for precise eddy current displacement measurement in rotating machinery. Consequently, it delivers verified performance for vibration and position monitoring. This probe features a 2.0 meter (6.6 feet) FluidLoc cable and a miniature coaxial ClickLoc connector. Because the 8 mm probe body provides a thicker encapsulation of the probe coil in molded PPS plastic, it offers superior robustness against physical abuse. Therefore, Bently Nevada recommends 8 mm probes for optimal mechanical durability.

Key Specifications and Performance Data

The 330140-10-20-12-00 operates with an incremental scale factor (ISF) of 7.87 V/mm (200 mV/mil) ±5% for standard 5 or 1 meter systems. However, for this 2.0 meter configuration, the ISF remains 7.87 V/mm (200 mV/mil) ±6.5% including interchangeability error. This value is measured in increments of 0.25 mm (10 mils) over the 80 mil linear range from 0°C to +45°C (+32°F to +113°F). Additionally, the deviation from best fit straight line (DSL) is less than ±0.038 mm (±1.5 mil) for standard 9 meter systems. The nominal probe DC resistance (RPROBE) from center conductor to outer conductor is 7.88 ± 0.50 Ω for a 2.0 meter probe. These exact electrical specifications ensure engineering-grade accuracy in every part.

Comparison with Alternative Probe Configurations

When selecting a probe for harsh environments, engineers often compare armored versus non-armored designs. The 330140-10-20-12-00 is a non-armored 8 mm probe. In contrast, armored versions provide additional mechanical protection but may limit flexibility. Furthermore, the FluidLoc cable option on this model prevents oil and other liquids from leaking out of the machine through the cable's interior. This is a critical advantage over standard cables in oil-rich environments. The patented TipLoc molding method provides a more robust bond between the probe tip and body. Similarly, the CableLoc design offers 330 N (75 lbf) pull strength. These features collectively reduce failure modes associated with cable strain and liquid ingress.

Installation and Integration Notes

Installing the 330140-10-20-12-00 requires attention to the probe tip and case sealing. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. However, probes are not pressure tested prior to shipment. Therefore, verify proper sealing during installation. The miniature coaxial ClickLoc connector ensures a secure, reliable connection. For integration with 3300 XL series monitors, use the specified extension cable. Always follow the manufacturer's safety manual for wiring and configuration. The probe operates over a standard temperature range of -52°C to +177°C (-62°F to +350°F). Exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal.

Reliability and Maintenance

To ensure long-term reliability, inspect the probe periodically for physical damage or cable wear. The PPS probe tip and stainless steel case resist corrosion and abrasion. However, the FluidLoc cable should be checked for leaks or cracks. Because the probe is not pressure tested, routine verification of the pressure seal is recommended. The probe's relative humidity performance shows less than a 3% change in Average Scale Factor (ASF) when tested in 93% humidity for up to 56 days. This indicates stable operation in humid environments. For engineering-grade precision, maintain the probe within specified temperature limits.

Product Support and Availability

The Bently Nevada 330140-10-20-12-00 is in stock and ready to ship from AutoDCSTech. For precise matching to your exact requirements, contact AutoDCSTech with your specifications. Please verify current lifecycle status and availability with AutoDCSTech before ordering.