Key Features

• High compactness and low weight
• Ultra low noise design
• Fast setup, data are useable few minutes after deployment
• Easy deployment, similar to a geophone for the size
• Allow use in shallow posthole without any special care
• Intrinsic robustness due to low weight and size
• Different foot options are available for different surfaces.
• Low power consumption allows unit to be used in remote installation with limited energy source

Applications

• Observatory grade Earthquake seismology
• Reservoir microseismic monitoring
• Soil property inspection and evaluation
• Microzonation

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: Selectable Z, Y, X or U, V, W mode
• Pass-band: 10s-120s to 100Hz (-3dB point at flat to ground velocity, 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: > 155dB at 1Hz; > 135dB in range 0.1 – 50Hz (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)
• Electrical Protections: overvoltage, surge, reverse-voltage and current overload
• Calibration coil: 16 ohm, input for UVW/ZYX components
• Self noise: Levelling: Manual with lockable paddles, integrated level
• Max. tilt tolerance: +/- 3° with levelling feet
• Operating temperat.: -20/+60°C
• Storage temperature: -40/+80°C
• Humidity: 0-100% even condensing (with plugged-in connectors)