Bently Nevada 21504-00-16-05-02 8 mm Proximity Probe Vibration Sensor

Technical Specifications Breakdown

Key parameters for the 21504-00-16-05-02 are listed below for quick reference:

Industry Applications for the 21504-00-16-05-02

Typical applications include:

• Turbomachinery Monitoring: Installed on steam turbines, gas turbines, and compressors to detect shaft vibration and radial position changes. The 80 mils range covers normal operating clearances.
• Pump and Motor Protection: Used on large industrial pumps and electric motors to identify early signs of bearing wear or imbalance. The -30°F to +350°F probe temperature rating suits harsh process areas.
• Paper and Steel Mills: In continuous process lines, the probe's corrosion resistance to air, water, lube oil, and mild chemicals ensures long-term reliability without performance degradation.

Installation & Setup Guidance

Proper mounting is essential for accurate readings. The 21504-00-16-05-02 uses 3/8-24 threads and a standard case configuration. Follow these guidelines:

• Gap Setting: The calibrated range begins at approximately 10 mils (0.25 mm) from the probe face. Adjust the initial gap to center the measurement within the linear range.
• Cable Routing: The 0.5 metre (20 inch) total length with miniature male coaxial connector requires secure routing away from high-EMI sources. Avoid sharp bends that could damage the cable.
• System Calibration: For best accuracy, calibrate the probe with its matching Proximitor to achieve ±4% scale factor tolerance. Interchangeability errors widen tolerance to ±9.5%.

Maintenance & Reliability

To maintain consistent performance:

• Inspect Periodically: Check the probe tip and cable for physical damage or contamination. Clean the tip with a soft, lint-free cloth if exposed to oil or dirt.
• Environmental Limits: The probe operates reliably in up to 95% noncondensing humidity. Avoid prolonged exposure to condensing moisture.
• Corrosion Check: For 8 mm probes, verify that the target surface and probe tip remain free of corrosive attack. The probe is unaffected by air, water, lube oil, ammonium hydroxide, 10% sulfuric acid, MEK, or DMF.

Reliable Vibration Monitoring with the Bently Nevada 21504-00-16-05-02

The Bently Nevada 21504-00-16-05-02 is a precision 8 mm proximity probe designed for continuous vibration monitoring in critical rotating machinery. As part of the trusted 7200 Proximity Transducer System, this sensor delivers accurate displacement measurements to help prevent unplanned downtime and equipment failure. With a calibrated range of 80 mils (2.0 mm) and a scale factor of 200 mV/mil (7.87 V/mm), it provides reliable data for predictive maintenance programs.

Compatibility & Integration

It is designed as a direct replacement for existing 8 mm probes in the same system. When ordering, confirm that the Proximitor model matches the probe's scale factor and power requirements (-17.5 Vdc to -26 Vdc at 12 mA).

Selection Guide & Purchasing Advice

When selecting a replacement or spare probe, verify the total length and connector type. The 21504-00-16-05-02 features a 0.5 metre cable with a miniature male coaxial connector (option 02). For longer cable runs, consider extension cables from the same series. AutoDCSTech offers this Bently Nevada probe as new, original factory-packed stock with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.