Epro PR9268/617-100 Electrodynamic Velocity Sensor

The Epro PR9268/617-100 is a high-performance electrodynamic velocity sensor designed for monitoring the absolute vibration velocity of machine housings, bearing pedestals, and structural components. It plays a critical role in preventive and predictive maintenance strategies by helping detect early signs of mechanical degradation, imbalance, or misalignment.

This sensor operates on the principle of electromagnetic induction. Internal movement of a seismic mass within a magnetic field produces a voltage proportional to the velocity of the sensor body. With a robust housing and reliable mechanical design, the PR9268/617-100 is ideal for industrial environments where durability, signal fidelity, and ease of installation are essential.

Product Specifications

Product Applications

The PR9268/617-100 is widely applied in industrial facilities where mechanical vibration monitoring is essential. Its core application areas include:

• Turbomachinery – Vibration velocity measurement for early warning on imbalance and bearing wear.

• Compressors and Pumps – Ensures smooth operation and avoids catastrophic failures.

• Motors and Generators – Tracks housing vibrations indicating shaft or winding issues.

• Fans and Blowers – Monitors operational stability and misalignment.

• Paper, Steel, and Cement Industries – Detects mechanical disturbances in high-speed rotating systems.

• Hydropower and Oil & Gas Equipment – Provides robust performance in damp, dusty, or explosive environments.

Product Advantages

Reliable Measurement Accuracy – High sensitivity and linear response ensure accurate velocity detection across a broad frequency range.

Robust Industrial Design – Stainless steel housing and IP67 rating ensure long-term survivability in harsh conditions.

Easy Integration – Standard MIL-C connectors and optional fixed cables make installation and maintenance simple.

Passive Sensor Design – No external power supply needed, enhancing system reliability.

Low Output Impedance – Excellent signal transmission over long cable runs without signal degradation.

Excellent EMI Shielding – Engineered for stability in environments with electrical noise.

Wide Application Flexibility – Compatible with a range of data acquisition systems and monitoring units.

Shock-Resistant – Withstands mechanical shock up to 100 g, ideal for heavy-duty equipment.

Standard-Compliant – Conforms to ISO and DIN standards for industrial vibration sensors.

Cost-Effective Monitoring – Offers a robust balance of performance and affordability.

Frequently Asked Questions (FAQ)

1. What is the measurement principle of the PR9268/617-100?

   It uses electrodynamic principles, generating a voltage proportional to vibration velocity through internal coil and magnet movement.

2. What frequency range does the sensor cover?

   It accurately measures in the 4.5 Hz to 1,000 Hz range.

3. Is this sensor active or passive?

   It is a passive sensor—no external power supply is required.

4. Can it be used in explosive environments?

   When housed appropriately or certified by third-party enclosures, it can be used in hazardous areas.

5. Is this sensor suitable for continuous monitoring?

   Yes, it is designed for 24/7 online condition monitoring applications.

6. What materials are used in the sensor construction?

   The housing is made of stainless steel for durability and corrosion resistance.

7. Does the sensor output an analog voltage?

   Yes, it outputs an analog voltage proportional to vibration velocity (e.g., 28.5 mV/mm/s).

8. How is the sensor installed?

   Typically, it’s base-mounted using M8 or M10 bolts, with recommended torque of 8 Nm.

9. Can I use this sensor with an Epro MMS system?

   Yes, it is fully compatible with Epro monitoring modules such as MMS6110 and MMS3120.

10. Is calibration required after installation?

    Factory calibration ensures accuracy. Periodic calibration checks are recommended annually.