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Power unit/amplifier

Model P31

Power unit/amplifier for 731A seismic sensor, battery powered gain 1,10,100; acceleration + velocity output, filtered

Features
  • Ultra low noise
  • Selectable amplifier gain of 1, 10, 100
  • Switchable output: acceleration or velocity
  • Wide dynamic range >120 dB
  • Switchable low pass filter 450 Hz or 100 Hz