PASI s.r.l.
- Home
- Companies
- PASI s.r.l.
- Products
- PASI - Model GEA 24 - Exploration ...
PASI - Model GEA 24 -Exploration Seismograph
FromPASI s.r.l.
GEA24 is a compact-sized 24 channel seismograph (2 units can be serialized for a total of 48 chs.) with a 24 bit data acquisition board and USB interface for external PC (not included in the standard supply). Suitable for so many applications, GEA-24 is a really affordable solution for all professional uses, as Depth and Geometry of bedrock quality of rock, volume of excavation material, surveys in landfill elastic parameters of soil
Most popular related searches
3D borehole
borehole geophone
data acquisition software
3D geophone
seismic cable
seismograph
vertical geophone
land geophone
seismic exploration
noise monitoring
- Refraction
- Shallow reflection
- Surface waves (MASW, RE.MI., VS30, MAAM, ESAC, etc.)
- HVSR / vibrations
- Downhole (with 3d borehole geophone mod.GFA)
- Crosshole (with 3d borehole geophone mod.GFA and cross-hole energizer for P/S waves mod.CHE)
- 24 channels + trigger (AUX) - 2 units can be serialized for a total of 48 chs.
- 24 real bits, Sigma-Delta ADC
- Easy to Use
- To be connected to any portable PC/tablet PC/toughbook
- Power supply from USB (no external battery!)
- Standard NK2721C seismic cable connectors
- Compatible with analog geophones of any resonance frequency
- 5 years warranty
- Free upgrades of data acquisition software
- Compact-sized and lightweight (24x19.5x11cm - 2 kg)
- PELI Case (IP67 when closed)
- Number of channels: 24 chs + trigger (AUX ch) - 2 units can be serialized for a total of 48 chs
- Data Conversion: 24 real bits Sigma-Delta ADC (compatible with analog geophones of any resonance freqency)
- Sampling intervals
- Active Acquisitions:
- up to 125 microsec (8000sps) on 24 chs,
- up to 31.25 microsec (32000sps) on 6 chs
- Passive Acquisitions: - up to 4000 microsec (250sps) on 24 ch
- up to 500 microsec (2000sps) on 3 chs
- Acquisition length
- 27500 samples @ 24 chs (+aux)
- 174500 samples @ 3 chs (+aux)
- Unlimited samples for continuous acquisitions
- Preamp. gain: 0/52 dB, software selectable
- Stacking: Unlimited number of stackings
- Input impedance: 2MOhm // 22nF
- S/N ratio: 117db @1ksps
- Distortion: 0.007% @16kHz
- Bandwidth -3dB Bandwidth +/- 0.1dB
- 6.8kHz@32ksps - 0.21 kHz@1ksps
- 3.5 kHz@32ksps - 0.11 kHz@1ksps
- Filters Low Pass:125-200-500-1000Hz
- High Pass: 10-20-30-40-50-70-100-150-200-300-400Hz
- Notch Filter 50-60Hz + harmonics
- Trigger: Normally closed contact, normally open contact (e.g. with explosive), analog signal (starter geophone, hammer switch), TTL triggering.
- Trigger sensibility adjustable via software
- Trace Display: Wiggle-trace / variable area
- Noise-monitor: All channels + trigger; real time bar display
- AUX channel: 1x (for trigger or any other input signal)
- External interface: 1x USB 2.0 to external PC (not included)
- Data format: SEG2, SAF (other formats available on request)
- Power supply: 5VDC from USB, 0.25A
- Operating/Storage Temp.: -30°C to +80°C
- Humidity: 80% relative humidity, non condensing
- Dimension: 24cm x19.5cm x11cm
- Weight: 2 Kg
- Seismic Cables
- Horizontal and Vertical Geophones
- 3D Land geophones
- Striking plate for “P and/or “S” waves
- Seismic Energizer “ISOTTA”
- 3D Borehole geophones
- Crosshole energizer
- Hammer Switch / Starter Geophone
- GPS option (georeferencing & timing)
- Radiotrigger