Compact-sized 24 channel seismograph

GEA24 is a compact-sized 24 channel seismograph (can be serialised for a total of 48 chan.) with a 24 bit data acquisition board and USB interface for external PC (not included in the standard supply). Suitable for refraction, seismic tomography, downhole, crosshole, Vs30, MASW, shallow reflection applications, GEA-24 is a reliable, affordable solution for all professional uses.

Number of channels: 24 channels+trigger (chan.‎ AUX) - 2 units can be serialised for a total of 48 channels Data Conversion : True 24 bit analogue/Digital Sigma-Delta converter (compatible with analogue geophones at any resonance frequency) Stacking: Unlimited number of stacking Input impedance: 2MOhm 22nF Dynamic range: 144dB (system); >117dB (instant, measured @1ksps) Distortion: 0.‎007% @16kHz Trigger: Normally closed contact, normally open (i.‎e.‎ for use with explosives), analogue signal (starter geophone, piezoelectric starter), TTL trigger.‎ Trigger sensitivity adjustable via software

refraction, seismic tomography, downhole, crosshole

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