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IAU-19

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General Specification

IAU-19 External Seismic Acquisition Node

Seismic data channel(s) :  1

ADC resolution  :      32 bits

Sample intervals :    0.25, 0.5, 1, 2, 4 ms

Preamplifier gain :   0dB to 36 dB 

Anti-alias filter :       206.5 Hz  2ms (82.6% of Nyquist)

Selectable - Linear Phase or Minimum Phase

DC blocking filter :   1Hz to 10Hz,1Hz increments or DC Removed

Data Storage : 16GB internal memory 

Operating Life 25℃:    25 days Continuous 

50 days Segmented (12hours ON/12hours SLEEP)

Recharge Time:      < 3 hours

Charging Temperature Range:  +3℃ ~ +40℃

Wireless QC :   Recording parameters, battery voltage, temperature, remaining data storage, GPS position and quality, connected sensor status

Physical Specifications

IAU-19 External Seismic Acquisition Node

Physical Size :  132mm(L)×97mm(W)×50mm(H) (Without external DCK plug)

Weight :   0.8 kg

Operating temperature :  -40℃ ~ +70℃

Waterproof :    IP68

Channel Performance

IAU-19 External Seismic Acquisition Node

 ( 2ms sample interval, 31.25 Hz, 25°C, unless otherwise indicated)

Maximum Input Signal:   ±2.5Vpeak Gain 0dB 

Dynamic Range :      125dB 2ms Gain 0dB 

Equivalent Input Noise  0.18µV 2ms Gain 18dB      

Total Harmonic Distortion :    < 0.0002% Gain 0dB   

Common Mode Rejection :     ≥100dB   

Gain Accuracy< 0.5%    

GPS Time Standard : 1 ppm     

Timing Accuracy ± 10µs, GPS Disciplined