Epro PR9351 Inductive Sensor – Detailed Product Overview

The Epro PR9351 is a high-precision inductive displacement sensor designed for measuring radial and axial displacements, positions, and eccentricities in critical turbomachinery applications. It operates based on an inductive transduction principle, making it ideal for real-time machinery monitoring in harsh industrial environments.

This sensor is widely used in steam turbines, gas turbines, compressors, and pumps to provide accurate displacement data, which is crucial for predictive maintenance and reducing unexpected downtime. With a rugged stainless-steel housing and IP67 protection rating, the PR9351 ensures high durability and reliability in extreme operating conditions.

Key Features and Benefits

1. High Accuracy and Stability

   • Provides precise displacement measurements with an accuracy of ±0.05% of full scale.
   • High repeatability of ±0.025%, ensuring consistent performance.

2. Robust and Durable Design

   • Stainless steel housing enhances durability and protects against mechanical damage.
   • IP67-rated, making it resistant to dust and water ingress.
   • Can operate in temperatures ranging from -20 to 100°C.

3. Wide Measurement Range

   • Can measure displacements up to ±25 mm, making it suitable for various industrial applications.

4. Dynamic Response Capability

   • Can handle fast movements with a frequency response of up to 1,250 Hz, allowing for real-time monitoring.

5. Flexible Output Options

   • Offers both DC voltage and 4-20mA analog output, ensuring compatibility with different control systems.

6. Easy Integration

   • Operates with a 5V RMS supply voltage and a carrier frequency of 3 to 5 kHz, making it easy to integrate into existing systems.

Technical Specifications

Applications

The Epro PR9351 is extensively used in industrial condition monitoring and predictive maintenance systems. Its high precision and robust construction make it ideal for critical applications in:

• Turbomachinery Monitoring

  • Steam turbines
  • Gas turbines
  • Hydro turbines

• Compressor Monitoring

  • Centrifugal and reciprocating compressors
  • Screw compressors

• Pump Monitoring

  • Centrifugal pumps
  • Reciprocating pumps
  • Diaphragm pumps

• Gearbox and Bearing Monitoring

  • Speed reducers and increasers
  • Rotating shafts

• Industrial Fans and Blowers

  • Cooling systems
  • HVAC applications

By providing real-time displacement data, the PR9351 enables operators to detect potential faults before they lead to costly breakdowns, enhancing machinery efficiency and safety.

Installation and Mounting Guidelines

To ensure optimal performance, the Epro PR9351 should be installed using the following guidelines:

1. Mounting Position

   • The sensor should be securely fixed to a stable, vibration-resistant surface.
   • Ensure proper alignment with the shaft or displacement target to avoid measurement errors.

2. Electrical Connection

   • Use a shielded cable to reduce electromagnetic interference.
   • Ensure a proper grounding connection to avoid signal disturbances.

3. Calibration and Configuration

   • The sensor should be calibrated according to the specific displacement range required.
   • Use a compatible signal conditioner or monitoring system to process the output signals correctly.

Related Models and Alternatives

If the PR9351 does not meet your specific application requirements, Epro offers various models with different specifications. Below is a list of related models: