EPRO PR9268/601-000 Electrodynamic Velocity Sensor

Electrodynamic Velocity Sensor

EPRO PR9268/601-000 Electrodynamic Velocity Sensor for absolute vibration measurement of critical turbomachinery applications such as steam, gas, and hydro turbines, compressors, pumps, and fans to measure case vibration.

Sensor Orientation

• PR9268/60x-000: Vertical, ± 60° (with sinking current)

Dynamic Performance (PR9268/60x-000)

• Sensitivity:

  • 22.0 mV/mm/s ± 5% @ Pin 3, 100Ω load
  • 16.7 mV/mm/s ± 5% @ Pin 1, 50Ω load
  • 16.7 mV/mm/s ± 5% @ Pin 4, 20Ω load

• Frequency Range: 10 to 1000Hz

• Natural Frequency: 8Hz ± 1.5Hz @ 20°C (68°F)

• Transverse Sensitivity: 0.10 @ 80Hz

• Vibration Amplitude (Mechanical Limit): 3000µm (4000µm) peak-peak

• Amplitude Linearity: < 2%

• Maximum Acceleration:

  • 10g (98.1 m/s²) peak-peak continuous
  • 20g (196.2 m/s²) peak-peak intermittent

• Maximum Transverse Acceleration: 2g (19.62 m/s²)

• Damping Factor:

  • ~0.7 @ 20°C (68°F)
  • ~0.5 @ 200°C (392°F)

• Resistance:

  • 3270Ω ± 10% @ Pin 3
  • 3770Ω ± 10% @ Pin 1

• Inductance: ≤ 160 mH

• Active Capacity: Insignificant

Environmental, General

• Operating Temperature Range: -20 to +200°C (-4 to 392°F)
• Protection Class: IP65
• Relative Humidity: 0 to 100%, Non-Condensing
• Material: Stainless Steel
• Weight: 1050g

Hazardous Area Approvals

• ATEX:
  • II 2G Ex ib IIC T4 Gb
  • II 2G Ex ib IIC T3 Gb
  • Tamb: T4 (-20°C ≤ Tamb ≤ 125°C), T3 (-20°C ≤ Tamb ≤ 190°C)
• IEC-Ex:
  • Ex ib IIC T4 Gb
  • Ex ib IIC T3 Gb
  • Tamb Connector: -40°C ≤ Tamb ≤ 100°C for T3 / T4

Ordering Information

• Model Number: PR9268/601-000
• Measurement Type: 60 - Vertical HT
• Cable: 1 - 5m, Armored
• Cable End: 0 - Harting Plug