Robust Armored Probe for Demanding Industrial Environments
The Bently Nevada 21505-000-040-10-02 7200 8 mm Standard Mount Armored Probe is a premium non-contact proximity probe engineered for accurate measurement of shaft vibration, axial position, and radial displacement in critical rotating machinery. As part of the well-established 7200 Proximity Transducer System, this armored probe combines high-precision eddy current sensing with reinforced mechanical protection, making it an ideal choice for applications where probe cables are exposed to vibration, abrasion, moisture, or harsh operating conditions.
Designed with an 8 mm sensing tip, 4.0-inch (102 mm) case length, and a 1.0-meter (39-inch) stainless steel armored integral cable, this probe delivers dependable performance while extending cable service life in challenging industrial environments. Its rugged construction and stable electrical characteristics help improve machinery reliability, minimize maintenance requirements, and support long-term predictive maintenance programs.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21505-000-040-10-02 |
| Product Type | 7200 8 mm Standard Mount Armored Probe |
| Series | 7200 Proximity Transducer System |
| Probe Diameter | 8 mm |
| Mounting Style | Standard Mount |
| Armor Type | Stainless Steel Armored Cable |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 0 in |
| Overall Case Length | 4.0 in (102 mm) |
| Integral Cable Length | 1.0 m (39 in) |
| Connector Type | Miniature Male Coaxial Connector |
| Measurement Principle | Eddy Current (Non-contact) |
| Linear Measurement Range | 2.0 mm (80 mils) |
| Frequency Response | 0 Hz to 10 kHz |
| Operating Temperature | -50°C to +150°C |
| Environmental Protection | IP67 |
| Dimensions | Approx. 102 × 8 mm |
| Weight | Approx. 0.59 kg |
Typical Applications
The 21505-000-040-10-02 armored probe is widely installed in machinery protection systems where enhanced cable durability and accurate shaft monitoring are essential.
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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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Blowers and fans
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Petrochemical processing plants
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Oil & gas production facilities
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Mining equipment
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Steel manufacturing
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Paper mills
Technical FAQs
1. What is the primary purpose of this armored probe?
It continuously measures shaft vibration, displacement, and axial position without physical contact while providing additional protection for the probe cable in demanding industrial environments.
2. How is an armored probe different from a standard probe?
An armored probe incorporates a stainless steel protective sheath around the cable, improving resistance to abrasion, mechanical impact, vibration, and harsh operating conditions.
3. Which monitoring system is this probe designed for?
It is designed for use with the Bently Nevada 7200 Proximity Transducer System, together with compatible extension cables and Proximitor sensors.
4. What is the probe diameter?
The probe features a standard 8 mm sensing tip, making it suitable for a wide variety of industrial rotating machinery applications.
5. What is the overall case length?
This model has a 4.0-inch (102 mm) case length, providing additional flexibility for standard mounting installations.
6. How long is the integral cable?
The probe includes a 1.0-meter (39-inch) stainless steel armored cable terminated with a miniature male coaxial connector.
7. Which mounting thread does this probe use?
The probe utilizes a 3/8-24 UNF threaded body for secure installation in compatible probe holders and machinery mounting brackets.
8. What measurement technology is employed?
The probe uses proven eddy current sensing technology, providing precise non-contact measurement of conductive shaft surfaces with excellent repeatability.
9. Which industries commonly install this probe?
It is widely used in power generation, petrochemical processing, oil & gas, mining, marine, pulp and paper, and other industries operating critical rotating equipment.
10. Why select the 21505-000-040-10-02?
Its armored cable construction, high measurement accuracy, rugged industrial design, and compatibility with the proven 7200 Series make it an excellent solution for long-term machinery protection and equipment reliability.
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