Technical Specifications Breakdown
Key parameters for the 21505-00-60-10-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21505 7200 Proximity Transducer Systems |
| Tip Diameter | 8 mm |
| Configuration Threads | 3/8-24 |
| Unthreaded Length Option | 00 (0 mm) |
| Overall Case Length Option | 60 (6.0 in) |
| Total Length | 1.0 metre (39 inches) Tolerance: +.25 metre,-.10 metre (+ 10 inches,-4 inches) |
| Connector Option | 02 (With miniature male coaxial connector) |
| Power | -17.5 Vde to -26 Vdc at 12 mA maximum consumption |
| Calibrated Range | 80 mils (2.0 mm). Begins at approximately 10 mils (0.25 mm) from probe face. |
| Scale Factor | 200 mV/mil (7.87 V/mm), ±4% (measured in increments of 10 mils over the calibrated range) if calibrated as a system, Within ±9.5% including interchangeability errors. |
| Linearity | Within 0.8 mils (0.02 mm) of a 200 mV/mil straight line if calibrated as a system. Within 2.3 mils (0.06 mm) of a 200 mV/mil straight line including interchangeability errors. |
| Frequency Response | 0 to 10 kHz (0 to 600,000 cpm); -5% at 10 kHz (600,000 cpm) |
| Temperature Sensitivity | Typically -396 change in scale factor at +150°F (+65°C) at 50 mils gap (1.27 mm) |
| Operating Temperature (Proximitor) | -60°F to +212°F (-51°C to +100°C) |
| Operating Temperature (Probe and Extension Cable) | -30°F to +350°F (-34°C to +177°C) |
| Relative Humidity | To 95%, noncondensing |
| System Weight | 1.3 lbs. (0.59 kg) |
Industry Applications Driving Cost Savings
Turbine Shaft Vibration Monitoring – In steam and gas turbines, the 21505-00-60-10-02 provides real-time shaft displacement data. Early detection of vibration anomalies avoids blade rubs and bearing failures, saving tens of thousands in repair costs and lost production.
Compressor Health Assessment – Centrifugal compressors in oil & gas and chemical plants benefit from the probe's 0 to 10 kHz frequency response, capturing both low-speed and high-speed vibration events. This enables predictive maintenance scheduling, reducing unplanned outages.
Pump Reliability Programs – For critical pumps in water treatment or refining, the probe's 80 mil calibrated range covers typical shaft movement. Consistent scale factor accuracy (±4% as a system) ensures reliable trend data for condition-based maintenance, lowering spare parts inventory.

Installation & Setup Guidance
Proper gap setting is critical for accurate readings. The calibrated range begins at approximately 10 mils (0.25 mm) from the probe face. During installation, use a non-conductive feeler gauge to set the initial gap within the linear region. Secure the probe using the 3/8-24 threads, ensuring the unthreaded length (0 mm) is fully inserted. Connect the miniature male coaxial connector to the proximitor, verifying cable strain relief to prevent intermittent signals. Power the system with -17.5 Vde to -26 Vdc at 12 mA maximum consumption; a regulated DC supply improves measurement stability.
Maintenance & Reliability
The stainless steel lead armor protects against mechanical wear in high-vibration environments. Inspect the probe cable and connector quarterly for signs of abrasion or corrosion. The probe's corrosion resistance to common industrial fluids (air, water, lube oil, ammonium hydroxide, 10% sulfuric acid, MEK, DMF) reduces replacement frequency. For optimal reliability, keep the probe face clean and free of debris; use only approved solvents if cleaning is necessary. The system weight of 1.3 lbs (0.59 kg) minimizes mechanical stress on mounting brackets.
Cost-Efficient Vibration Monitoring with the Bently Nevada 21505-00-60-10-02
Industrial rotating machinery demands precise, reliable vibration measurement to prevent costly unscheduled downtime. The Bently Nevada 21505-00-60-10-02 8 mm proximity probe delivers accurate displacement data for critical assets like turbines, compressors, and pumps. By integrating this probe into your condition monitoring strategy, you reduce the risk of catastrophic failures and extend equipment life—directly improving operational ROI.
This 7200 series transducer system component is built for harsh environments. Its stainless steel armor and corrosion-resistant construction (unaffected by air, water, lube oil, ammonium hydroxide, 10% sulfuric acid, MEK, or DMF) ensure long service life, lowering total cost of ownership. The 1.0 meter (39 inches) total length with miniature male coaxial connector simplifies installation in tight spaces, minimizing labor costs.

Compatibility & Integration
The 21505-00-60-10-02 is designed for Bently Nevada 7200 series proximity transducer systems. It interfaces directly with compatible proximitors and extension cables. The 200 mV/mil output is standard for most Bently Nevada monitoring racks and software platforms, simplifying integration into existing condition monitoring networks. For new installations, verify that the total length (1.0 metre) and connector type (miniature male coaxial) match your system requirements.
Selection Guide & Purchasing Advice
When selecting a proximity probe, consider the target material, temperature range, and cable length. AutoDCSTech stocks this Bently Nevada probe in new, factory-sealed condition with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Our team can assist with cross-referencing to ensure compatibility with your existing 7200 system components.
Availability & Condition at AutoDCSTech
| Part Number | 21505-00-60-10-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
