The World standard broadband-seismometer other seismometers are compared to, with very low noise, high clipping level, low power, and wide operational temperature range without adjustment.
A low temperature version (down to -55°C) is available on request.
- Performance equally to STS-2
- Improved insensitivity to barometric pressure variation by a factor of 10 compared to STS-2
- Serial interface for control and maintenance
- Auxiliary signals switchable between mass-position and UVW-raw
- Low power, less than 450 mW
|Sensor element arrangement|
Galperin-type three components
120 s (8.33 mHz) - 50 Hz
Seismic Signals: ±20 V differential (40 Vpp), 220 Ω Impedance, Auxiliary signals: ±10 V single ended, 1 kΩ Impedance
Control lines (Fast Response, Calibration), POS/RAW), 3-30 V, 0.5 mA. Buttons for Lock/Unlock and Centering (Hostbox), RS-232 Interface
9-36 VDC, galvanically isolated. 0.45 W typical, 2.0 W maximum
|Tilt Range (operating)|
|Tilt Range (adjustable)|
±5°, manually adjustable feet
|No centering Temperature Range|
-20°C .. +70°C (performance), -40°C .. +70°C (functional), 0-100% RH
external hostbox. low temperature version available (-50°C).
|Size (∅ x h), Weight|
235 mm x 260 mm, 12 kg (9.25" x 10.2", 26.4 lbs), 13 kg (28.6 lbs incl. accessories), same form factor as STS-2
STS-2.5, hostbox, orientation rod, instruction manual, cable 5 m (available: 3 m, 10 m, 15 m, 30 m, other lengths on request)