Bently Nevada 21504-02-12-05-02 8mm Proximity Probe Vibration Transducer

Technical Specifications Breakdown

Key parameters for the 21504-02-12-05-02 are listed below for quick reference:

Industry Applications for Vibration Monitoring

The 21504-02-12-05-02 proximity probe is designed for non-contact vibration and position measurement on rotating shafts. Typical applications include steam turbines, centrifugal compressors, pumps, and electric motors where shaft vibration must be monitored to prevent catastrophic failure. Its 80 mils calibrated range and 200 mV/mil scale factor provide reliable data for trend analysis and alarm systems. The probe's corrosion resistance to air, water, lube oil, ammonium hydroxide, sulfuric acid (10%), MEK, or DMF makes it suitable for harsh process environments.

Installation & Setup Guidance

Proper installation of the 21504-02-12-05-02 is critical for accurate readings. The probe uses 3/8-24 threads and has a standard case configuration. Ensure the probe face is clean and the target surface is free of scratches or electrical runout. The total length of 0.5 metre (20 inches) with a tolerance of +0.13 metre, -0.05 metre must be accounted for during mounting. The miniature male coaxial connector option simplifies wiring to the proximitor. Always follow the manufacturer's guidelines for gap voltage setting and cable routing to avoid noise interference.

Maintenance & Reliability

For long-term reliability, inspect the probe and cable periodically for physical damage or contamination. The probe operates from -30°F to +350°F (-34°C to +177°C), and the proximitor from -60°F to +212°F (-51°C to +100°C). Relative humidity up to 95%, noncondensing, is acceptable. No special maintenance is required beyond routine visual checks and verifying system calibration annually.

Compatibility & Integration

This probe is part of the Bently Nevada 7200 Proximity Transducer System. It is designed to work with compatible proximitors and extension cables to form a complete measurement chain. The 8 mm diameter tip and 200 mV/mil scale factor ensure interchangeability within the system. When integrating, verify that the total cable length and connector type match your existing setup.

Selection Guide & Purchasing Advice

When selecting a proximity probe, consider the shaft diameter, required range, and environmental conditions. The 21504-02-12-05-02 offers a 0.5 metre total length with a miniature coaxial connector, making it suitable for installations where space is limited. At AutoDCSTech, we stock this item as new and original in factory packing with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.