GEO-S120
The GEO-S120 broadband seismometer relies on years of experience designing high precision, low noise, and reliable seismic equipment. It is based on a very sensitive capacitive transducer that monitors the position of the seismic bass and a feedback loop that generates signal output proportional to velocity with extended bandwidth 120sec to 80Hz. The instrument has low self-noise, which is ideal for local, regional, and teleseismic earthquake recording. No mass lock is required, and it supports automatic mass centering. The sensor provides calibration input and communication via a serial port. The GEO-s120 design is exceptionally versatile, ideal for both direct bury and vault use cases. The seismometer casing is made from hard anodized aluminum or stainless steel.
Additional Details
When combined with our GEOthree or GEOsix datalogger, the GEO-S120 provides a true broadband station with low overall power consumption, providing an ideal solution for rapid response applications requiring high-resolution data. The GEO-S60 version of this seismometer has equal specifications, but the output velocity response is flat between 60sec to 90Hz.
Features
- Three-component broadband seismometer
- Force Balance with capacitive transducer
- Surface or shallow bury installations
- 150mm diameter, 125mm height
- Aluminium or Stainless Steel casing
- Bandwidth 120sec – 80Hz or 60sec-90Hz
- Sensitivity 1200V/m/s
- Power consumption < 1W
- Automatic mass center
- Self-noise 80sec-16Hz below NLNM
- Dynamic range > 155dB @1Hz
- Operation Range: -20 +60°C