Built for Precise Vibration and Position Measurement
The Bently Nevada 21504-08-28-10-02 7200 8 mm Standard Mount Probe is a high-accuracy eddy current proximity probe designed for continuous monitoring of shaft vibration, radial displacement, and axial position in critical rotating machinery. As part of the proven 7200 Proximity Transducer System, this probe provides stable, repeatable measurements that support predictive maintenance programs and improve equipment reliability in demanding industrial applications.
This configuration incorporates an 8 mm unthreaded length, 280 mm overall case length, and a 1.0-meter integral cable with a miniature male coaxial connector. Its standard 3/8-24 UNF threaded body enables easy installation in compatible probe brackets and housings, making it an ideal solution for turbines, compressors, motors, and other high-value rotating assets.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21504-08-28-10-02 |
| Product Type | 7200 8 mm Standard Mount Probe |
| Series | 7200 Proximity Transducer System |
| Probe Diameter | 8 mm |
| Mounting Configuration | Standard Mount |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 8 mm |
| Overall Case Length | 280 mm (11.02 in) |
| Integral Cable Length | 1.0 m (39 in) |
| Connector Type | Miniature Male Coaxial Connector |
| Measurement Principle | Eddy Current (Non-contact) |
| Typical Linear Range | 2.0 mm (80 mils) |
| Frequency Response | DC to 10 kHz |
| Operating Temperature | -51°C to +177°C |
| Dimensions | Approx. 280 × 8 mm |
| Weight | Approx. 0.42 kg |
Ideal Application Areas
The 21504-08-28-10-02 probe is engineered for continuous machinery condition monitoring across a wide range of industries.
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Industrial pumps
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Electric motors
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Power generators
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Gearboxes
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Process compressors
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Petrochemical facilities
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Oil & gas production systems
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Mining machinery
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Steel and paper manufacturing plants
Technical FAQs
1. What is the primary purpose of this probe?
The probe continuously measures shaft vibration, displacement, and axial position without contacting the rotating shaft, helping protect critical machinery and improve maintenance planning.
2. Which monitoring system is this probe compatible with?
It is designed for the Bently Nevada 7200 Proximity Transducer System, working together with compatible extension cables and Proximitor sensors.
3. What does the "08" option indicate?
The 08 configuration specifies an 8 mm unthreaded length, allowing additional flexibility for specific installation and mounting requirements.
4. What does the "28" option represent?
The 28 option identifies an overall probe case length of 280 mm, making this model suitable for applications requiring a longer probe body.
5. How long is the integral cable?
This model includes a 1.0-meter (39-inch) integral cable with a miniature male coaxial connector for secure system integration.
6. Which thread size is used?
The probe features a 3/8-24 UNF threaded body, the standard mounting configuration for 7200 Series 8 mm probes.
7. What sensing technology does the probe use?
It utilizes eddy current sensing technology, providing highly accurate, non-contact measurement of conductive shaft surfaces with excellent repeatability.
8. Is this probe suitable for continuous industrial operation?
Yes. It is engineered for continuous service in harsh industrial environments where reliable vibration monitoring is essential.
9. Which industries commonly use this probe?
Industries including power generation, oil and gas, petrochemical processing, mining, paper manufacturing, and heavy industrial production commonly install this probe for machinery protection.
10. Why choose the 21504-08-28-10-02?
Its extended probe body, robust construction, dependable measurement accuracy, and compatibility with the proven 7200 Series make it an excellent solution for protecting valuable rotating equipment and reducing unplanned downtime.
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