Product Summary
The Bently Nevada 21505‑022‑055‑10‑02 7200 8 mm Standard Mount Armored Probe is a rugged, high‑accuracy displacement and vibration sensor engineered for industrial condition monitoring and machine protection. Designed as part of the 7200 proximity transducer family, this armored proximity probe combines robust construction with precise eddy‑current sensing to reliably track shaft movement and vibration in turbines, compressors, pumps, and other rotating equipment.
Purpose‑built for harsh environments where moisture, abrasion, and mechanical stress are common, this probe features an armored outer sheath that protects the sensor cable and internal components. It integrates seamlessly with 7200 series Proximitor sensors and monitoring modules, delivering continuous measurement data to support predictive maintenance strategies and reduce unplanned downtime.
Technical Specifications
| Parameter | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21505‑022‑055‑10‑02 |
| Series | 7200 |
| Module Type | Standard Mount Armored Proximity Probe |
| Probe Tip Diameter | 8 mm |
| Sensing Technology | Eddy‑current, non‑contact |
| Linear Measurement Range | 2 mm (80 mils) |
| Recommended Gap | 1.27 mm (50 mils) |
| Frequency Response | DC to 10 kHz |
| Mounting Thread | Standard M10 × 1 |
| Connector Type | Miniature coaxial connector |
| Cable Protection | Armored stainless‑steel sheath |
| Housing Material | Stainless steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Operating Temperature | −52 °C to +177 °C |
| Vibration Tolerance | Up to 20 g (10–2000 Hz) |
| Shock Resistance | Up to 100 g |
Typical Applications
Power Generation Assets
Used on turbines and generators to monitor rotor vibration and detect imbalance or shaft movement early.
Oil & Gas Rotating Equipment
Ideal for compressors and pumps in refineries and upstream facilities where reliability is critical.
Heavy Industrial Machinery
Deployed on gearboxes, large motors, and centrifugal equipment subject to harsh operating conditions.
Process Manufacturing
Essential for real‑time vibration monitoring in petrochemical, mining, and chemical processing plants.
Predictive Maintenance Systems
Provides continuous displacement data used by analysts and automated systems to identify early fault signatures and plan maintenance.
Key Advantages
Armored Design for Enhanced Durability
The armored cable sheath protects against abrasion, impact, and environmental exposure, extending service life in severe conditions.
Non‑Contact Eddy‑Current Sensing
Measures shaft movement without physical contact, eliminating mechanical wear and ensuring accurate, stable output.
Standard Mount Compatibility
Fits standard M10 × 1 mounting systems, simplifying installation and replacement.
Seamless Integration with 7200 Series
Works with 7200 Proximitor sensors, extension cables, and monitoring modules for reliable system performance.
Supports Continuous Condition Monitoring
Delivers real‑time vibration data critical for machine protection and predictive maintenance programs.
Technical FAQs
1. What is the primary role of this probe?
This probe measures shaft vibration and displacement using non‑contact eddy‑current technology to support machine health monitoring.
2. What diameter probe tip does it use?
It uses an 8 mm probe tip.
3. Is the armored version appropriate for harsh environments?
Yes, the armored cable protection increases resistance to abrasion and mechanical stress.
4. What system is this probe compatible with?
It is designed for use with the Bently Nevada 7200 proximity transducer system.
5. What installation thread does it use?
Standard M10 × 1 mounting thread.
6. What is the recommended probe gap?
Approximately 1.27 mm (50 mils) is recommended for typical installations.
7. Can this probe operate at high temperature?
Yes, it is rated up to +177 °C.
8. Does the armored design affect probe accuracy?
No, the armored sheath protects the cable without impacting measurement precision.
9. What industries commonly use this probe?
Power generation, petrochemical, oil & gas, process manufacturing, and heavy industry.
10. How does the armored probe support predictive maintenance?
It provides continuous, accurate vibration and shaft movement data that can be analyzed to detect early signs of mechanical fault.
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