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
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 |
