Description
Top-range seismograph equipped with 24-48-72-96 embedded channels for active and passive seismic surveys. X824S basic configuration integrates 24 channels and can be expanded with 24 channels modules, without external boxes, up to maximum 96 integrated channels. Instrument has a PC with 10” monitor and operative system Windows 10. Management of all settings, acquisition parameters, recording and visualization of recorded data, are performed sequentially and in an intuitive manner by means of the operative system installed on the instrument, which includes also a guide with step by step instructions for the realization of the most common surveys. High flexibility together with high dynamic range make X824S the ideal solution for every kind of active and passive seismic survey: surface seismic investigations such as Refraction, Reflection (P and S waves), M.A.S.W. , Re.Mi. , E.S.A.C., bore-hole surveys such as Down Hole and Cross Hole, stand-alone passive station H.V.S.R. and vibrational monitoring. With particular regards to seismic methodologies, 24 channels module allows the use of a single cable with 24 takeouts that, together with integrated battery pack, reduces the number of accessories to bring on site.
Methodologies
- REFRACTION SEISMIC
- REFLECTION SEISMIC
- M.A.S.W
- SEISMIC DOWN-HOLE/CROSS-HOLE
- SEISMIC VIBRATION MONITORING
- NAKAMURA METHOD, HVSR, H/V
- Re.M.i / ESAC
- SEISMIC TOMOGRAPHY
- M.A.A.M
Technical Specifications
General
ADC technology: 24bit Delta-Sigma ADC
Geophone number: from 24 to 96 + 1
Acquisition: Active and passive
Dimensions: 50x40x20 cm
Weight: 6 kg
Display: 10″ touch screen
GPS: Yes
Export compatibility: .seg2; .csv
In-line test: Geophone test, noise analysis
Case: IP67
Enviromental condition: -20°C / 80°C
Power supply: Internal Li-ion battery
Autonomy: >7h
Acquisition
Broadband: -3dB at 3500 Hz
Frequency: from 250Hz to 48kHz active; 251Hz, 502Hz, 1008Hz passive
Gain: from 0 to 42dB
Samples per event: 6255 pretrigger; 29127 acquisition
Anti aliasing: -3dB, 80% Nyquist’s frequency, -80dB
Common mode rejection: 110 dB a 50Hz
Input signal: ±2.5V
Trigger type: Differential trigger, geophone selectable