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- Bently Nevada
- 21504-00-12-05-02
- 7200 8 mm Standard Mounting Probe
- USA
- 0.5 meters
- 0.22 kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Bently Nevada 21504-00-12-05-02 is an 8 mm standard mounting proximity probe from the 7200 Series, designed for non-contact measurement of shaft vibration, displacement, and position in rotating machinery.
It uses eddy-current sensing technology to deliver continuous, accurate, and reliable monitoring of machinery condition. The 0.5-meter total length makes it suitable for compact installations or short routing requirements in industrial environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 21504-00-12-05-02 |
| Product Type | 7200 Series Proximity Probe |
| Series | 7200 |
| Probe Diameter | 8 mm |
| Total Length | 0.5 meters |
| Mounting Type | Standard Mounting |
| Measurement Principle | Eddy-current, non-contact sensing |
| Shipping Weight | 0.22 kg |
| Measurement Type | Shaft vibration, displacement, and position |
| Linear Measurement Range | 2–3 mm (typical) |
| Sensitivity | 200 mV/mil (typical) |
| Frequency Response | Up to 10 kHz |
| Application | Machinery protection and condition monitoring |
Function and Working Principle
The 21504-00-12-05-02 operates using eddy-current technology:
- The probe generates a high-frequency electromagnetic field at its sensing tip.
- A conductive target such as a rotating shaft induces eddy currents.
- Changes in the gap between probe and target modify the electromagnetic field.
- These variations are converted into electrical signals proportional to shaft vibration and displacement.
This non-contact measurement ensures long-term reliability and eliminates mechanical wear.
Key Features
- 8 mm eddy-current proximity probe
- Compact 0.5-meter total length for short routing applications
- Non-contact measurement technology
- High-precision vibration and displacement monitoring
- Rugged industrial construction
- Stable long-term performance
- Compatible with 7200 Series monitoring systems
- Suitable for continuous online condition monitoring
Industrial Applications
- Steam turbine shaft monitoring
- Gas turbine protection systems
- Compressor vibration analysis
- Pump condition monitoring
- Generator vibration and position measurement
- Electric motor diagnostics
- Gearbox condition monitoring
- Oil & gas production systems
- Power generation facilities
Installation Overview
- Standard mounting configuration
- Installed close to the rotating shaft without contact
- Connected to extension cable and Proximitor sensor
- Requires precise gap calibration during installation
- Suitable for radial vibration and axial position measurement
Compatible Components
| Component | Description |
|---|---|
| 7200 Series Extension Cable | Signal transmission to monitoring system |
| Proximitor Sensor | Converts probe signal into electrical output |
| Machinery Protection System | Provides alarm and shutdown functions |
| Probe Housing Assembly | Mechanical mounting and environmental protection |
| Diagnostic Software | Condition monitoring and analysis tools |
Alternative Models
| Model | Description |
|---|---|
| 21504-00-08-10-02 | 8 mm Probe – 1 m length |
| 21504-000-016-05-02 | 8 mm Probe – 0.5 m variant |
| 21504-000-024-10-02 | 8 mm Probe – 1 m variant |
| 21502-01 | 8 mm Eddy Current Probe |
Key Advantages
- High-precision non-contact measurement
- Reliable performance in harsh industrial environments
- Compact 0.5 m length for tight installations
- Long service life with minimal maintenance
- Supports predictive maintenance strategies
- Reduces risk of unexpected equipment failures
Conclusion
The Bently Nevada 21504-00-12-05-02 7200 8 mm Standard Mounting Probe is a compact, durable, and precise eddy-current sensor designed for monitoring shaft vibration, displacement, and position. Its short 0.5-meter configuration and robust industrial design make it well suited for space-constrained installations in critical rotating machinery.