MAE - Model ST6 -6 Channels - 24 Bit Seismograph

Ideal for stand-alone passive seismic methodologies such as seismic vibration at time or trigger threshold, non destructive test, surveys on buildings with three-dimensional sensors and HVSR investigations. Management software can be installed on every notebook or netbook and allows to interface with instrument for the management and configuration of recording parameters for all the different typology of seismic investigations. Connection between notebook - tablet and ST6 is made through an USB interface present on instrument panel. Instrument extremely compact dimensions, its reduced weight and quite competitive price, make it particularly ideal to the use in specific situations which require a rugged, reliable and at same time small instrument, easy to transport even in logistically complicated situations. It is possible to connect to ST6 seismograph both 1D (6 channels) and 3D sensors (12 channels), therefore it is particularly recommended also for structural vibrations monitoring.

General:

• ADC technology: 24bit Delta-Sigma ADC
• Geophone number: 6
• Acquisition: Active and passive
• Dimensions: 21x17x9 cm
• Weight: 0.5 kg
• Export compatibility: .seg2; .csv
• In-line test: Geophone 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: from 250Hz to 12kHz active; 251Hz, 502Hz, 1008Hz passive
• Gain: from 0 to 36dB
• Samples per event: 6255 pretrigger; 29127 acquisition
• Anti aliasing: -3dB, 80% Nyquist`s frequency, -80dB
• Common mode rejection: 110 dB at 50Hz
• Input signal: ±2.5V
• Trigger type: Single-ended trigger, external channel

• Seismic Down-Hole/Cross-Hole
• Nakamura Method, HSVR, H/V
• M.A.A.M.
• Reftaction Seismic