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LAND PRODUCTS

GCL

GCL Connectorless Autonomous Data Recorder

PRODUCT DETAILS

The GCL is a self-contained, autonomous land wireless seismic data acquisition solution. An internal geophone, 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 32 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 by eliminating the process of engaging connectors for power and data transfer.

FEATURES

  • No connectors
  • Continuous, cable-free autonomous recording
  • 24-bit resolution and 124 dB instantaneous dynamic range
  • Either GS-ONE-LF (5 Hz) or GS-ONE (10 Hz) vertical geophone
  • Battery life: 60 days @ 24 hrs/day operation
  • Built-in, full-resolution test generator
  • Solid-state flash memory: 16 or 32 GB
GCL-1(2)@2x

MECHANICAL SPECIFICATIONS

Length x Width 14.0 x 11.1 cm 5.5 x 4.375 in
Height (without spike) 12.7 cm 5.0 in.
Weight (with spike) 1.18 kg 2.6 lbs.
Operating Temperature Range –40°C to +60°C –40°F to +140°F

ELECTRICAL SPECIFICATIONS

Digitized 1C Recording Station: 1 Channel, 24-bit A/D Digitizer GS-ONE-LF (5 Hz) Vertical Geophone —or—
GS-ONE (10 Hz) Vertical Geophone
Digitization 24-bit Delta-Sigma
Sample Interval 0.25, 0.5, 1, 2, 4 ms
Pre-amplifier Gains 0, 6, 12, 18, 24, 30, 36dB
Maximum Input Signal 1.77 Vrms
Equivalent Input Noise (@2ms sample interval) 0.17 μVrms
Gain Accuracy Better than 1%
Anti-alias Filter 83% Nyquist
Instantaneous Dynamic Range 124 dB @2ms sample interval
THD (Instrument) 0.0005%
THD (Geophone) < 0.15%
Flash Memory 16 or 32 GB per channel
Frequency Response 1 Hz – 1650 Hz @ ¼ ms sample interval
Battery Module 60 days operation
Geophone Sensitivity GS-ONE-LF (5 Hz) 2.27 V/in/sec —or— GS-ONE (10 Hz) 2 V/in/sec
Frequency 5 Hz —or— 10 Hz

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