Nanometrics Trillium Compact - Page 59

Digitizer Input Range
(Vpp)
Digitizer
Sensitivity
(count /µV)
Trillium Compact
Sensitivity
(V/(m/s))
Clip Level
(mm/s)
40 0.4 754 26.5
20 0.8 754 13.3
10 1.6 754 6.63
4 4 754 2.65
2 8 754 1.33
1 16 754 0.66
0.5 32 754 0.33
Table 6-1 - Clip Level versus Gain Range
Digitizer Input
Range (Vpp)
Centaur System Sensitivity
(Counts/(m/s))
Pegasus System Sensitivity
(Counts/(m/s))
40 2.99e+08 2.99e+08
20 5.99e+08 6.03e+08
10 1.20e+09 1.21e+09
4 2.99e+09 3.02e+09
2 5.99e+09 6.03e+09
1 1.20e+10 1.21e+10
0.5 2.40e+10 2.41e+10
Table 6-2 - System Sensitivity versus Gain Range
Note that the exact nominal system sensitivity will vary depending on the normalization
frequency (typically 1 Hz) and the lower corner period. The exact nominal sensor sensitivity for
a particular type of Trillium Compact seismometer can be taken from the appropriate table in
"Frequency Response for 120 s and 20 s models" on page72.
Chapter 6 - Configuring Your System
16889R10 • 2020-11-12 Page 59