Bently Nevada 21504-000-024-10-02 5 mm and 8 mm Standard Mount Probe

Description

21504-000-024-10-02: 8 mm standard mount proximity probe, 3/8-24 UNF thread, 0.0 in unthreaded length (Option 000), 2.4 in case length (Option 024), 1.0 m total cable length (Option 10), and miniature male coaxial connector (Option 02). This transducer is a core component of the 7200 series proximity system, utilizing eddy-current technology to provide high-resolution displacement, vibration, and position measurements for rotating machinery.

The 8 mm probe construction uses polyphenylene sulfide (PPS), a high-performance plastic optimized for harsh, wet, or chemical environments. This specific configuration features a non-armored lead and is designed for standard mounting applications where space allows for the 3/8-24 thread interface. It functions as part of a complete 7200 series transducer system, which includes a matching Proximitor sensor and extension cable, ensuring compatibility with Bently Nevada monitoring systems such as the 3300 and 9000 series.

Features

• 8 mm probe tip diameter with PPS construction for chemical and moisture resistance
• 3/8-24 UNF-2A thread for standard mounting configurations
• 0.0 in unthreaded length (Option 000)
• 2.4 in case length (Option 024)
• 1.0 m integral coaxial cable length (Option 10)
• Miniature male coaxial connector (Option 02)
• Compatible with 7200 series Proximitor sensors and extension cables
• Provides 80 mils (2.0 mm) of linear measuring range
• Standard system scale factor of 200 mV/mil (7.87 V/mm)

Applications

• Radial vibration monitoring to detect rotor imbalance and misalignment
• Axial thrust position measurement for bearing wear analysis
• Shaft average radial position for attitude angle and rotor stability analysis
• Eccentricity measurement to identify rotor bow
• Critical machinery protection including steam and gas turbines, compressors, pumps, and electric motors

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the probe is installed with the correct gap distance relative to the target surface, typically starting at 10 mils (0.25 mm) from the probe face. Proper grounding and shielding of the coaxial cable are essential to prevent signal noise. When installing in hazardous areas, ensure adherence to local regulations and verify compliance with Bently Nevada data sheets for hazardous location installations. Verify that all connector interfaces are clean and tight before securing the cable routing to avoid physical stress on the transducer.