Description

The Bently Nevada 330101-15-40-10-02-00 is an unarmored, high-performance 8 mm proximity probe engineered for continuous, non-contact shaft vibration and position measurement. This specific configuration features a 3/8-24 UNF thread, a 1.5-inch unthreaded case portion, a 4.0-inch total case length, and a 1.0-meter standard coaxial cable terminated with a ClickLoc miniature connector, without agency approval requirements. Acting as a critical transducer element within the 3300 XL monitoring chain, the probe uses eddy-current operating principles to detect minute changes in target distance, translating dynamic shaft motion into electrical signals for machinery protection systems.

Because this variant is supplied without protective armor, it is highly suited for installations where the transducer cable is protected within external industrial conduits, or routed through clean internal machinery housings. When combined with a compatible 330180 series Proximitor sensor and extension cable, this configuration delivers robust, drift-free displacement tracking under severe rotating machinery environment constraints, ensuring timely diagnostic and protective actions on critical plant assets.

Features

• Standard 8 mm tip diameter optimized for eddy-current non-contact vibration and displacement measurement.
• Rugged PPS composite tip material with a corrosion-resistant stainless steel threaded body for extended service life.
• Unarmored design simplifies routing in dry conduits and enclosed machinery structures.
• Integral ClickLoc miniature coaxial connector provides a secure, vibration-proof electrical connection.
• High-stability design maintains tight calibration across extensive operating temperature ranges.

Applications

This proximity probe configuration is commonly deployed in heavy industrial environments to monitor rotating machinery health. Key applications include:

• Shaft radial vibration monitoring on fluid-film bearing housings.
• Axial shaft displacement and thrust position tracking on steam and gas turbines.
• Rotor dynamic measurements on heavy-duty pumps, fans, and turbocompressors.
• Over-speed protection systems and keyphasor phase reference signaling.
• Permanent safety protection loops in chemical plants, refineries, and power generation facilities.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure proper calibration and signal integrity, follow these basic installation practices:

• Verify that the unthreaded length of 1.5 inches provides adequate clearance within the mounting port to avoid internal contact.
• Establish the correct probe gap (typically adjusted to a nominal -10 VDC output under system calibration) before securing the locknut.
• Route the standard coaxial cable away from potential mechanical wear, and secure it to prevent whipping or vibration fatigue.
• Use proper grounding and shielding procedures, routing the cable into a dedicated junction box to connect with the extension cable.
• Ensure the coaxial ClickLoc connectors are completely clean and dry during mating to preserve the high-frequency RF transmission characteristics.