Bently Nevada 21504-08-28-10-02 7200 8mm Standard Mount Probe

Product Introduction

The Bently Nevada 21504-08-28-10-02 7200 8mm Standard Mount Probe is a non-contact eddy current proximity probe designed for accurate measurement of shaft vibration and displacement in rotating machinery. As part of the Bently Nevada 7200 series monitoring system, this probe is widely used in industrial condition monitoring applications where reliable machinery protection is required.

The probe operates using eddy current sensing technology to detect the distance between the probe tip and the surface of a rotating shaft or metal target. Changes in this distance are converted into electrical signals that can be processed by vibration monitoring systems. This enables maintenance teams to continuously observe shaft movement, vibration levels, and mechanical conditions of critical rotating equipment.

The 7200 series probe features a standard mount design with an 8 mm sensing tip, allowing easy installation on a wide range of industrial machines. Its 1.0 meter total cable length provides flexible mounting options while maintaining stable signal transmission to the associated proximitor or monitoring module.

Designed for demanding industrial environments, the probe offers reliable performance even in areas subject to vibration, oil contamination, and temperature variations. It is commonly used in monitoring systems for turbines, compressors, pumps, and other rotating machinery where early detection of mechanical faults is essential.

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Product Specifications

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Applications

● Steam Turbines
Used to monitor shaft vibration and displacement in steam turbines to detect imbalance, misalignment, or bearing problems.

● Gas Turbines
Installed in turbine monitoring systems to measure rotor movement and ensure safe operation.

● Industrial Compressors
Provides continuous vibration measurement for high-speed compressors used in oil, gas, and chemical industries.

● Centrifugal Pumps
Detects abnormal shaft vibration that may indicate bearing wear or mechanical instability.

● Power Generation Equipment
Applied in generator and turbine monitoring systems to maintain equipment reliability.

● Rotating Machinery Protection Systems
Integrated with machinery protection systems to provide real-time shaft position and vibration data.

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Advantages

● Non-Contact Measurement Technology
Eddy current sensing allows accurate measurement without physical contact with the rotating shaft.

● High Measurement Stability
Provides consistent signal output for precise vibration and displacement monitoring.

● Compact Standard Mount Design
The 8 mm probe size allows installation in limited spaces within machinery housings.

● Reliable Industrial Performance
Designed for long-term use in demanding industrial environments.

● Flexible Installation
The 1.0 meter probe cable allows convenient installation in various machine configurations.

● Compatible with 7200 Monitoring Systems
Fully compatible with Bently Nevada 7200 series vibration monitoring and protection systems.

FAQ

1. What is the main purpose of the 7200 8mm proximity probe?
   The probe is designed to measure shaft vibration and displacement in rotating machinery using non-contact eddy current sensing technology.

2. How does the probe detect shaft movement?
   It generates an electromagnetic field at the probe tip. Changes in the distance between the probe and the metal shaft alter the field, producing a signal proportional to displacement.

3. What type of machinery commonly uses this probe?
   The probe is widely used in turbines, compressors, pumps, and other critical rotating machines.

4. Where is the probe typically installed on equipment?
   It is usually installed in bearing housings or machine casings so that the probe tip faces the rotating shaft.

5. Is the probe suitable for continuous monitoring systems?
   Yes. It is designed for continuous condition monitoring in industrial machinery protection systems.

6. Can this probe measure radial shaft vibration?
   Yes. It is commonly used to measure radial vibration and shaft displacement in rotating equipment.

7. What monitoring systems are compatible with this probe?
   The probe is designed to work with Bently Nevada 7200 series monitoring systems and related proximitor modules.

8. Does the probe require direct contact with the shaft?
   No. It operates using non-contact eddy current sensing, which prevents mechanical wear.

9. Why is shaft vibration monitoring important?
   Monitoring vibration helps detect early signs of imbalance, misalignment, bearing damage, or mechanical looseness.

10. Can multiple probes be installed on the same machine?
    Yes. Many machines use multiple probes to monitor vibration in different directions or at different bearing locations.

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