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MAEModel ST3 -3-Channel 24-Bit Seismograph with 3D Sensor and 2 Hz Geophones

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The ST3 instrument integrates within an acquisition board equipped with 3 channels with 24 bit resolution for each channel and a 3D sensor with geophones with a natural frequency of 2 Hz. The instrumentation is managed via a laptop or tablet PC connected to the instrumentation via USB connection.

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General:

  • ADC technology: 24bit Delta-Sigma ADC
  • Geophone number: triaxial 2Hz gephones
  • Acquisition: Passive
  • Dimensions: Ø14x10 cm
  • Weight: 2 kg
  • Export compatibility: .seg2; .csv
  • In-line test: Noise analysis
  • Case: IP67
  • Enviromental condition: -20°C / 80°C
  • Power supply: External source

Acquisition:

  • Dynamic range: 144 dB (dynamic); 109 dB (at 1ms sampling)
  • Broadband: -3dB at 3500 Hz
  • Frequency: 251Hz, 502Hz, 1008Hz
  • Gain: from 0 to 42dB
  • Anti aliasing: -3dB, 80% Nyquist`s frequency, -80dB
  • Common mode rejection: 110 dB at 50Hz
  • Input signal: ±2.5V
  • M.A.S.W.
  • Nakamura Method, HSVR, H/V