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LE 3D 5s

 

This seismometer with a lower cutoff frequency of 0.2 Hz is perfectly suited for seismic monitoring, H/V measurements and seismic microzonation. Until present, we have manufactured more than 1000 instruments of this type.

Essential features and characteristics:

 

The most important characteristics:

Eigenperiod  5 seconds
Upper frequency limit 50 Hz
Transduction factor 800 V/(m/s) (differential)
Output signal 3 analog voltages, max. +- 7V
Power supply +10 ... +16V DC, typically 7 mA @12 V 
Dimensions 195 mm diameter, 165 mm height (excluding handle)
Weight 6.5 kg
Temperature range -15 ... +60 °C
RMS noise @ 1 Hz       < 1 nm/s
Dynamic range > 140 dB