Guralp Systems CMG-DM24S12AMS - Manual (Page 59)

CMG-DM24S12AMS Operator's guide
dynamic range. In order to exploit the whole dynamic range two
separate outputs are provided, with high and low gain. Nominally the
high gain outputs are set to output a signal 10 times stronger than the
low gain outputs.
The 5U sensor outputs are all differential with an output impedance of
47 Ω. A single signal ground line is provided as a return line for all the
sensor outputs.
Full-scale low-gain sensitivity is available from 4.0g down to 0.1g. The
standard frequency pass band is flat to acceleration from DC to 100 Hz
(although other low pass corners from 50 Hz to 100 Hz can be ordered.)
A high frequency option provides flat acceleration from DC to 200 Hz.
Each seismometer is delivered with a calibration sheet showing its serial
number and measured frequency response in both the long period and
the short period sections of the seismic spectrum.
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