Bently Nevada 21504-000-012-05-02 5mm and 8mm Standard Mount Probe

The Bently Nevada 21504-000-012-05-02 is a precision-engineered proximity probe designed for use in the 7200 series condition monitoring systems. It supports both 5 mm and 8 mm configurations, making it highly adaptable for diverse machinery monitoring applications. As part of a trusted product family known for reliable non-contact vibration and position measurement, this standard mount probe helps maintain operational safety and performance across critical rotating assets.

Utilized extensively in the oil & gas, power generation, and process industries, this model is well-suited for shaft displacement, radial vibration, and thrust position monitoring. The probe is designed for compatibility with matching extension cables and Proximitor sensors, forming a complete, factory-calibrated measurement system.

Technical Specifications

Product Applications

The 21504-000-012-05-02 is a highly versatile probe model suitable for various industrial machinery, including:

• Gas and Steam Turbines

  Monitoring shaft displacement, axial thrust, and vibration for early fault detection.

• Compressors (Axial, Centrifugal, Reciprocating)

  Real-time monitoring of mechanical wear, rotor positioning, and misalignment.

• Industrial Motors & Generators

  Shaft vibration and bearing condition monitoring to ensure safe operation.

• Gearboxes and Transmission Systems

  Detection of gear misalignment and axial shifting under load.

• Pumps (Centrifugal and Positive Displacement)

  Ideal for monitoring cavitation effects and detecting early-stage bearing damage.

• Fans, Blowers, and Other High-Speed Equipment

  Ensures vibration within tolerances to prevent premature equipment failure.

Product Advantages

• Flexible Tip Configuration (5 mm and 8 mm)

  Compatible with both tight spaces and standard applications, providing deployment flexibility.

• Accurate Eddy Current-Based Measurement

  Offers reliable shaft vibration and displacement detection under dynamic load conditions.

• Robust Mechanical Design

  Engineered for rugged environments with vibration, oil mist, and temperature fluctuations.

• Seamless System Integration

  Matches precisely with Bently Nevada Proximitor sensors and extension cables.

• Low Drift and High Linearity

  Maintains signal integrity and accuracy even in long-term industrial operation.

• Field-Proven Durability

  Extensively deployed in demanding industries; trusted in mission-critical equipment.

• Fast Response Time

  Real-time measurements suitable for high-speed rotating machinery protection systems.

Frequently Asked Questions (FAQ)

1. Can this probe be used with any proximity monitoring system?

   No. It is designed specifically for use with Bently Nevada 7200 Series systems for accurate calibration.

2. What makes it compatible with both 5 mm and 8 mm configurations?

   The probe design allows the use of tips in both diameters, enabling fit in varied installation conditions.

3. What type of materials can it measure accurately?

   It is factory-calibrated for ferromagnetic materials such as AISI 4140 steel.

4. Is this probe suitable for high-vibration applications?

   Yes. It can tolerate peak vibrations up to 20 g, making it ideal for turbines and compressors.

5. Can the probe cable length be modified after purchase?

   No. Modifying cable length alters system calibration and is not recommended.

6. Is recalibration necessary during equipment servicing?

   Recalibration is advised during major overhauls or every 3–5 years.

7. What is the expected lifespan of the probe?

   With proper installation, it can operate effectively for over 5–10 years without degradation.

8. How is the probe sealed against contaminants?

   It comes with sealed connectors and an IP65-rated body to withstand industrial environments.

9. Does it support hazardous area certification?

   This model does not come with ATEX/IECEx certification. Check explosion-proof variants if needed.

10. Is there a temperature limitation for continuous use?

    Yes, it should be used within the -35°C to +120°C operating range for optimal accuracy.