Reliable Vibration Monitoring with the Bently Nevada 21504-00-52-05-02
Industrial rotating machinery requires precise, continuous vibration monitoring to prevent catastrophic failures. The Bently Nevada 21504-00-52-05-02 is an 8 mm proximity probe designed for non-contact measurement of shaft vibration and position. Part of the trusted 7200 Proximitor Transducer System, this probe delivers accurate data for predictive maintenance and machine protection.
Technical Specifications Breakdown
Key parameters for the 21504-00-52-05-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21504 7200 Proximity Transducer System |
| Unthreaded Length Option | 00 (0 mm) |
| Overall Case Length Option | 52 (5.2 in) |
| Total Length Option | 05 (0.5 metre / 20 inches) |
| Connector Option | 02 (miniature male coaxial connector) |
| Tip Diameter | 8 mm |
| Threads | 3/8-24 |
| Calibrated Range | 80 mils (2.0 mm) |
| Scale Factor | 200 mV/mil (7.87 V/mm) |
| Frequency Response | 0 to 10 kHz (0 to 600,000 cpm) |
| Probe Operating Temperature | -30°F to +350°F (-34°C to +177°C) |
| System Weight | 1.3 lbs (0.59 kg) |
Industry Applications
Common applications include steam turbines, compressors, pumps, and electric motors. The 8 mm tip and 200 mV/mil scale factor provide high-resolution data for early fault detection. Compared to eddy-current sensors from other brands, the 21504-00-52-05-02 offers a proven design with a wide temperature tolerance, making it suitable for harsh industrial settings.
Installation & Setup Guidance
Mount the probe using the 3/8-24 threaded case. Ensure the gap between the probe face and the target surface starts at approximately 10 mils (0.25 mm) to begin the calibrated range. The total cable length is 0.5 metre (20 inches) with a miniature male coaxial connector. Verify that the power supply meets the input requirement of -17.5 Vdc to -26 Vdc at 12 mA maximum consumption. Use the specified connector option to maintain signal integrity.
Maintenance & Reliability
Inspect the probe and extension cable periodically for physical damage. The probe is resistant to air, water, lube oil, ammonium hydroxide, sulfuric acid (10%), MEK, and DMF. Keep the probe face clean and free of debris. The system operates reliably in relative humidity up to 95% noncondensing. No calibration adjustments are needed if the system is factory-calibrated.
Compatibility & Integration
The 21504-00-52-05-02 integrates with Bently Nevada 7200 series Proximitor monitors and extension cables. The standard 3/8-24 thread and coaxial connector ensure compatibility with existing installations. For systems requiring interchangeability, the scale factor tolerance is within ±9.5% including interchangeability errors.
Selection Guide & Purchasing Advice
When selecting a replacement probe, verify the total length, thread size, and connector type. The 21504-00-52-05-02 is available new and in original factory packing at AutoDCSTech. Each unit carries a 12-month factory warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21504-00-52-05-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
