Epro PR9266/12 Electrodynamic Velocity Sensor

製品紹介

The Epro PR9266/12 Electrodynamic Velocity Sensor is a high-precision vibration velocity transducer designed for monitoring and analyzing the mechanical vibration / industrial machinery. Operating on the moving-coil electrodynamic principle, the sensor converts mechanical vibration into a proportional electrical voltage signal, enabling direct and accurate measurement / vibration velocity without requiring signal integration.

Engineered for absolute vibration measurement on non-rotating surfaces such as bearing housings, gearboxes, turbines, and compressors, the PR9266-12 delivers reliable, linear output over a wide frequency range. It is part / Epro’s well-established PR926x series, which has become a benchmark in industrial vibration measurement for its mechanical durability, electrical precision, and long-term stability under harsh operating conditions.

This model is specifically optimized for integration with Epro MMS machine monitoring systems or similar condition monitoring setups, /fering precise real-time feedback on machinery health. Its compact and rugged design, combined with high sensitivity and self-generating operation, makes it suitable for both permanent installations and portable measurement applications in industries such as power generation, petrochemical, steel, and marine sectors.

Technical Specifications

Product Applications

The Epro PR9266/12 is designed for a wide variety / industrial vibration monitoring and machine protection applications. Its ability to measure vibration velocity directly makes it particularly valuable for assessing the dynamic behavior / rotating machinery and structural components.

Main Application Areas Include:

• Turbines and Generators: Measurement / casing vibration for imbalance, misalignment, and bearing wear.

• Compressors: Continuous monitoring / vibration amplitude to detect mechanical looseness or resonance conditions.

• Pumps: Early detection / cavitation or impeller imbalance through vibration monitoring.

• Motors and Fans: Real-time tracking / vibration velocity for predictive maintenance programs.

• Gearboxes: Analysis / vibration velocity to identify gear mesh faults or bearing defects.

• Industrial Equipment Frames: Measurement / structure-borne vibration to monitor machine foundation stability.

The PR9266/12 ensures accurate detection / machine abnormalities before failures occur, supporting predictive maintenance and minimizing unplanned downtime.

Product Advantages

• Self-generating sensor: Operates without the need for an external power source or conditioning 台.

• True velocity output: Eliminates integration errors associated with acceleration-based sensors.

• Wide dynamic range: Delivers accurate readings across low to high vibration levels.

• Exceptional reliability: Withstands extreme industrial environments and mechanical stress.

• 優良 linearity: Provides stable and proportional signal output over the entire operating range.

• Compact and lightweight: Ideal for installations where space and mass are limited.

• High electromagnetic imm台y: Resistant to interference from nearby motors or power cables.

• Easy mounting: Can be installed using a threaded stud or magnetic base for flexible applications.

• Compliant with international standards: Meets ISO 10816 and API 670 vibration measurement guidelines.

• Proven design: Backed by decades / Epro’s field experience in industrial vibration monitoring.

FAQ

1. What principle does the PR9266/12 sensor operate on?
   It works on the electrodynamic moving-coil principle, where mechanical vibration induces a voltage proportional to the vibration velocity.

2. What is the sensor’s output signal type?
   The sensor provides a self-generated voltage signal directly proportional to vibration velocity, with no external power required.

3. Can the PR9266/12 be used with Epro monitoring systems?
   Yes, it is fully compatible with Epro MMS systems such as MMS6000 and MMS3120, as well as other standard vibration monitoring systems.

4. What is the frequency range / this sensor?
   The PR9266/12 /fers a wide frequency response from 10 Hz to 1,000 Hz, suitable for most industrial machinery.

5. What type / mounting is recommended for accurate measurement?
   A rigid threaded mounting or magnetic base should be used to ensure optimal mechanical coupling and signal accuracy.

6. Does the sensor measure absolute or relative vibration?
   The PR9266/12 measures absolute vibration velocity on non-rotating parts such as bearing housings or casings.

7. What materials are used for the sensor housing?
   It is constructed from stainless steel for superior mechanical strength and corrosion resistance.

8. What internal resistance does the coil exhibit?
   The internal resistance is 340 ohms, enabling compatibility with standard monitoring input impedances.

9. Is recalibration / the PR9266/12possible?
   Yes, recalibration can be performed using standard vibration calibration systems to verify sensitivity accuracy.

10. Can this sensor be installed in high-temperature environments?
    Yes, the PR9266/12operates effectively within -25°C to +100°C, with consistent sensitivity over the temperature range.

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