R9268/301‑000 | EPRO Electrodynamic Velocity Sensor for Machinery

EPRO R9268/301‑000 Electrodynamic Velocity Sensor

Product Summary

The EPRO R9268/301‑000 is a high-performance electrodynamic velocity sensor designed for industrial vibration monitoring. It measures absolute casing vibration in rotating machinery, providing reliable protection and diagnostic data. Moreover, its robust mechanical design ensures long-term operation in harsh environments. Therefore, it is ideal for turbines, compressors, pumps, and gearboxes in API 670-compliant systems.

Technical Specifications

Sensor Performance

• Measurement Principle: Electrodynamic velocity sensing (coil + seismic mass in magnetic field)

• Sensitivity: 17.5 mV/mm/s

• Frequency Range: 10–1000 Hz

• Natural Frequency: 14 Hz ±7% @ 20 °C

• Transverse Sensitivity: <0.1 at 80 Hz

• Amplitude Linearity: <2% deviation

• Maximum Vibration Amplitude: 3 mm peak‑to‑peak

• Maximum Acceleration: Continuous 10 g, Intermittent 20 g

• Maximum Transverse Acceleration: 2 g

• Damping Factor: 0.6

• Output Signal: Voltage proportional to vibration velocity

• Orientation: Horizontal mounting

Environmental Ratings

• Operating Temperature: –30 °C to +200 °C

• Shock & Vibration Resistance: Rugged mechanical design

• Protection Class: ATEX certified versions available

FAQ

Q: What type of vibration does the R9268/301‑000 measure?
It measures absolute casing vibration independent of shaft motion for machinery protection.

Q: Can it operate in high-temperature environments?
Yes, it functions reliably from –30 °C up to +200 °C.

Q: Is the sensor suitable for hazardous areas?
Yes, ATEX-certified versions are available for industrial zones with explosive risks.

Q: What system can it integrate with?
It works with MMS 6000 and other EPRO monitoring systems.

Q: How is it installed?
The horizontal type R9268/301‑000 can be mounted on machinery casings using robust brackets.