Bently Nevada 21504-00-12-10-02 7200 8mm Standard Mount Probe

The Bently Nevada 21504-00-12-10-02 is a part of the 7200 series proximity probe systems. This specific model is an 8mm Standard Mount Probe, meticulously engineered for non-contact vibration and displacement measurements in critical rotating machinery. Known for its robustness and precision, it is widely adopted in applications that demand high-reliability monitoring solutions such as turbines, compressors, pumps, and motors in oil & gas, power generation, and industrial sectors.

This probe is designed to meet the stringent API 670 standards, providing exceptional signal stability and durability in harsh environments. The 21504-00-12-10-02 model features a standard thread mount for secure installation and is compatible with both the 7200 series proximitor sensors and extension cables. It delivers accurate measurements over a wide range of operating conditions, making it a preferred choice among maintenance and reliability engineers worldwide.

Technical Specifications

Applications

The 21504-00-12-10-02 probe is versatile and finds its utility in several high-value and high-risk machinery monitoring applications, including:

• Steam and gas turbines (vibration and axial position monitoring)

• Centrifugal compressors (shaft vibration and thrust position)

• Electric motors and generators (rotor dynamics observation)

• Pumps and fans (vibration and dynamic displacement analysis)

• Gearboxes (shaft monitoring for early fault detection)

• Industrial process equipment with rotating elements

The non-contact nature of the probe makes it ideal for continuous, long-term monitoring where probe-to-target interaction must be avoided.

Product Advantages

• Precision Engineering: High-resolution sensing of shaft vibration and displacement with proven eddy current technology.

• API 670 Compliance: Ensures compatibility with global industry standards for critical machinery protection systems.

• Wide Compatibility: Integrates seamlessly with 7200 series proximitor sensors and extension cables.

• Robust Construction: Corrosion-resistant stainless-steel housing and rugged tip for operation in harsh environments.

• High Sensitivity & Accuracy: Stable 200 mV/mil output with low noise and minimal temperature drift.

• Reliable in Harsh Conditions: IP65-rated for protection against dust and water ingress.

• Ease of Installation: Threaded mount for easy field replacement and secure positioning.

• Long-Term Operation: Engineered for continuous monitoring applications with minimal degradation over time.

• Customizable Configurations: Available in multiple lengths and thread options upon request.

• Global Field Support: Backed by Bently Nevada’s strong technical support and diagnostic tools.

Frequently Asked Questions (FAQ)

1. Q: What is the sensing principle of the 21504-00-12-10-02 probe?

   A: It uses eddy current technology for non-contact measurement of shaft position and vibration.

2. Q: Can this probe be used in high-temperature environments?

   A: Yes, it is rated for continuous operation up to +175°C.

3. Q: Is the probe compatible with other series proximitor sensors?

   A: It is specifically designed to work with Bently Nevada 7200 series proximitor sensors.

4. Q: What is the primary difference between 8mm and 5mm probes?

   A: 8mm probes offer a larger sensing area and are typically used in industrial and heavy-duty applications, whereas 5mm is suited for compact spaces.

5. Q: How is the probe typically mounted?

   A: It uses a threaded mount (3/8-24 UNF) to ensure secure installation.

6. Q: What kind of signal output does it generate?

   A: It provides a linear voltage output of 200 mV/mil.

7. Q: Does the probe require calibration after installation?

   A: While factory-calibrated, system calibration with proximitor and extension cable is recommended for accuracy.

8. Q: Is the probe resistant to oil and chemicals?

   A: Yes, the stainless steel housing and PPS tip are chemically resistant.

9. Q: Can the probe be ordered in different lengths?

   A: Yes, customized lengths are available based on system requirements.

10. Q: What is the recommended gap between the probe tip and target surface?

    A: The typical target-to-probe gap is approximately 1.0 mm (40 mils), adjustable based on proximitor settings.