Bently Nevada 21504-04-36-10-02 7200 Series 5 mm and 8 mm Standard Mount Probe

Description

The 21504-04-36-10-02 is an 8 mm standard mount proximity probe from the Bently Nevada 7200 series, configured with 0.4 inches of unthreaded length (Option 04), 3.6 inches of case length (Option 36), a 1.0 metre total cable length (Option 10), and a miniature male coaxial connector (Option 02). As a non-contacting, eddy-current transducer, it is engineered to measure static and dynamic distances between the probe tip and the observed target, such as a machine shaft.

This 8 mm probe is constructed from polyphenylene sulfide (PPS), a durable material suitable for harsh, wet, or chemically aggressive industrial environments. It provides a linear measuring range of 80 mils (2 mm) with a scale factor of 200 mV/mil. This configuration is widely used for radial vibration, axial thrust position, and shaft average radial position measurements in critical rotating machinery, including steam turbines, compressors, pumps, and electric motors.

Features

• Probe Diameter: 8 mm for standard mount configuration
• Unthreaded Length: 0.4 inches (Option 04)
• Case Length: 3.6 inches (Option 36)
• Cable Length: 1.0 metre (Option 10)
• Connector Type: Miniature male coaxial connector (Option 02)
• Construction: Polyphenylene sulfide (PPS) probe tip for chemical and environmental resistance
• Compatibility: Compatible with 7200 series Proximitor sensors and 3300/9000 Monitoring Systems
• Thread Configuration: 3/8-24 UNF-2A standard mount

Applications

• Radial vibration monitoring to indicate bearing condition
• Axial thrust position measurements to detect bearing wear
• Shaft average radial position for rotor stability analysis
• Vibration amplitude and phase angle plotting for diagnostic formats
• Eccentricity measurement to identify rotor bow

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the probe is mounted securely using the provided jam nut. Maintain the appropriate gap distance to stay within the linear operating range. When routing the coaxial cable, avoid sharp bends and protect the connector from moisture and contaminants. This system should be calibrated as a complete loop (probe, extension cable, and Proximitor) for optimal accuracy.