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Colt
Brand: Reftek Systems IncThis flexible and portable broadband seismometer is ideal for portable deployments and rugged enough for long term deployment in local and regional networks.
The compact REF TEK® Colt™ broadband seismometer provides high quality data for scientists conducting earth movement studies.
COLT features an exceptionally low self-noise design through use of a force balance electronic feedback circuit design.
It measures ground motion at even the quietest of sites. Colt epitomizes dynamic range instrumentation and quick, easy deployment.
Scientists requiring portable or small footprint vault style seismometers now have a high dynamic range instrument available for quick, easy deployment.
The shock resistant mass locking system protects the instrument during transportation to any field location. And, with an IP67 rating, rain, hail and snow won’t interfere with your data collection.
Features- High dynamic range – ideal for portable & vault style installations
- Exceptionally low-self noise
- Truly portable – small and lightweight
- Shock resistant housing
- Robust automatic mass unlock system
Specifications
Brand
Sensor Type
- Symmetrical Configuration (3 Component), Orthogonal Output
Feedback
- Force balance with capacitive transducer
Bandwidth
- 0.0083 (120 seconds) - 80 Hz (Flat velocity response)
- 0.0167 (60 seconds) - 80 Hz (Flat velocity response)
Dynamic Range
- > 140 dB (0.01-0.05 Hz), > 160 dB (1-10 Hz)
Self-Noise
- Below NLNM from 40 seconds to 10 Hz
Clip Level
- > 10 mm/s (@ 1 Hz)
Nominal Sensitivity
- 2000 V/m/s s ± 0.5 %
Full Scale Output
- 40 Volts Peak-Peak (Differential Output)
Output Impedance
- < 100 Ohms
Parasitic Resonances
- > 160 Hz
Cross Axis Coupling
- < 1 %
Linearity
- < -60 dB
Total Harmonic Distortion
- < -60 dB
Calibration Constant
- 10 m/s²/A (Nominal)
Calibration Input
- Calibration current on 3 components simultaneously
Calibration Enable Capability
- Active Low on Pin L to stay enable
Cal Coil
- Single Cal signal input, isolated until cal enable line activated
Mass Position Outputs
- ± 10 V
Input Voltage
- 9-18 Vdc
Consumption
- < 0.7 Watts
Protection
- Over-voltage, Reverse-voltage, & surge protection
- Permanent & temporary broadband seismic installations
- Local and regional broadband networks
- Aftershocks and portable deployments
- Earthquake early warning networks (EEW)