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SS08
SS08 is a broadband triaxial seismometer designed for fast deployment with a very wide range of operating temperature. The sensing elements are embedded in a solid case of steel and aluminum designed to reduce the mechanic stress with atmosphere pressure variation. It uses the symmetric architecture recovering Z,Y,X velocity signal from U,V,W homogeneous transducers, allowing higher precision in reconstruction of real ground motion.
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Product information:
Key Features
- High sensitivity
- Ultra low noise design
- Self noise below Peterson’s noise model (NLNM)
- Automatic mass centering
- Electric mass lock upon command
- Magnetic shielding
- Low power consumption allows SS08 to be used in remote installation with limited energy source
- Sealed housing with structure air-pressure variations resistant
- IP68 grade
Applications
- Observatory grade earthquake seismology
- Reservoir microseismic monitoring
- Planetary seismology and geophysics
- Tsunami Early Warning Systems
Technical specifications
- Configuration: U,V,W (output to physical motion Z, Y, X)
- Principle of operation: Force Feedback with capacitive transducer
- Nominal sensitivity: 1500V/m/s (customizable at order)
- Velocity output: Z, Y, X (U,V,W mode also available at mass output signals)
- Pass-band: 180-20s to 100Hz (customizable at order)
- Number of channels: 3 + 3 (Z, Y, X and virtual mass UVW status)
- Peak output: +/- 20V (differential output, 40V p-p)
- Clip level: 13 mm/sec (nominal @ 1500 V/m/s, see chart)
- Output impedance: 2 x 100 Ohm
- Mass position output: +/- 10V from U,V,W signals
- Dynamic range: > 150dB in range 0.1 – 10Hz (see chart)
- Calibration input: 1 with transducer selection (U,V,W,all)
- Power supply input: 9-36Vdc isolated
- Power consumption: < 500mW* @ 12Vdc (1W maximum depending on conditions)
- Protections: Surge and reverse-voltage, with self-resetting fuses
- Calibration coil: 33 ohm
- Self noise: Levelling: Manual with lockable paddles, integrated level
- Max. tilt tolerance: +/- 3° with levelling feet
- Operating temperat.: -20/+70°C (-/+25°C without recentering)
- Storage temperature: -40/+80°C
- Humidity: 0-100% even condensing (with plugged-in connectors)
- Protection grade: IP68K
- Mass lock & centering: Automatic, externally electrically activable
- Max. shock allowed: 5g half sine
- Connector: MIL-C-26842 26 pin at a side
- Standard cable length: 3 meters, customizable at order
- Digital interface: RS232 for diagnosis & commands
- Dimension: diameter 240mm, body height 275mm
- Weight: 15kg
- Enclosure: Aluminum, painted and coated against corrosion
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