Bently Nevada 21504-000-016-05-02 5 mm and 8 mm Standard Mount Probe

Description

The 21504-000-016-05-02 is a 7200 series 8 mm standard mount proximity probe featuring a 1/4-28 thread configuration. This specific hardware assembly is configured with 0.0 inches of unthreaded length (Option 000), a 1.6-inch case length (Option 016), and a 0.5-metre integral cable (Option 05) terminated with a miniature male coaxial connector (Option 02). This transducer system is engineered to measure static and dynamic distances between the probe tip and observed targets, commonly utilized for shaft vibration, axial thrust position, and rotor stability monitoring on industrial rotating machinery.

The 8 mm probe construction utilizes polyphenylene sulfide (PPS), a durable plastic capable of maintaining integrity in harsh, wet, or chemically active environments. Operating on the eddy current principle, the system includes a probe with integral cable, an extension cable, and a Proximitor sensor. This configuration provides a linear measuring range of 80 mils (2.0 mm) with a scale factor of 200 mV/mil (7.87 V/mm), ensuring compatibility with standard 7200 and 3300 series monitoring instrumentation.

Features

• Probe Diameter: 8 mm (Standard Mount)
• Thread Size: 1/4-28 UNF
• Case Length: 1.6 inches (40.6 mm)
• Unthreaded Length: 0.0 inches
• Cable Length: 0.5 metre (integral)
• Connector: Miniature male coaxial
• Material: Polyphenylene sulfide (PPS) tip
• Measurement Range: 80 mils (2.0 mm) linear
• System Compatibility: 7200, 3300, and 9000 series monitoring systems

Applications

• Radial vibration measurement for bearing condition and rotor imbalance detection
• Axial thrust position measurement to detect bearing wear or failure
• Shaft average radial position for rotor stability analysis
• Vibration amplitude and phase angle for diagnostic plotting
• Eccentricity measurement for rotor bow detection
• Suitable for gas turbines, steam turbines, compressors, pumps, and centrifuges

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the probe is mounted securely using the provided jam nut to prevent loosening due to vibration. Verify that the probe tip has adequate clearance from the target surface to maintain the calibrated linear range. Keep cable runs away from high-voltage lines to minimize electromagnetic interference. When installing in hazardous areas, ensure adherence to the specific certification requirements provided in the Bently Nevada 7200 system documentation.

Compliance and Certifications

This system is compatible with API 670 requirements. Consult specific hazardous area certification sheets for CSA, BASEEFA, and FM approval status pertinent to the 7200 series transducer line.