GCL-3
PRODUCT DETAILS
The GCL-3 is a self-contained, three-component, autonomous land wireless seismic data acquisition solution. Three internal geophones and a battery, charger, 24-bit digitizer, GPS receiver, and GLONASS receiver are enclosed in its sealed case. A built-in test signal generator and up to 64 GB of non-volatile, solid-state data storage allow for quality and reliable data. Faster and more efficient operations can be achieved with the use of the GCL-3 by eliminating the process of engaging connectors for power and data transfer.
Features
- No connectors
- Continuous, cable-free autonomous three-component recording
- 24-bit resolution and 124 dB instantaneous dynamic range
- GS-SMG (10 Hz) vertical and horizontal geophones
- Battery life: 40 days @ 24 hrs/day operation
- Built-in, full-resolution test generator
- Solid-state flash memory: 32 or 64 GB
Mechanical Specifications
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Length x Width
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14.0 x 11.1 cm
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5.5 x 4.375 in.
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Height
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17.81 cm
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7.01 in.
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Weight
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1.26 kg
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2.77 lbs.
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Operating Temperature Range
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–40°C to +60°C
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–40°F to +140°F
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Electrical Specifications
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Digitized Recording Station
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3 Channel, 24-bit A/D Digitizer GS-SMG (10 Hz) Vertical/Horizontal Geophones
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Digitization
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24-bit Delta-Sigma
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Sample Interval
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0.25, 0.5, 1, 2, 4 ms
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Pre-amplifier Gains
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0, 6, 12, 18, 24, 30, 36 dB
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Maximum Input Signal
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1.77 Vrms
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Equivalent Input Noise (@2ms sample interval)
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0.17 μVrms
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Gain Accuracy
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Better than 1%
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Anti-alias Filter
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83% Nyquist
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Instantaneous Dynamic Range
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124 dB @ 2 ms sample interval
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THD (Instrument)
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0.0005%
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THD (Geophone)
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< 0.15%
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Flash Memory
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10 or 20 GB per channel
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Frequency Response
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1 Hz – 1650 Hz @ ¼ ms sample interval
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Battery Module
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40 days operation
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Geophone Sensitivity
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GS-SMG (10 Hz) 2 V/in/sec
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Frequency
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10 Hz
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