30 User’s Manual
4.2.1 Device Acquisition Menu – Standard Menu
The Acquisition Menu allows the following selections
1. Gain – This entry sets the pre-amp gain on the DAQlink III. Standard setting for
Seismic acquisition is 16
a. Gain =1 maximum input is 3.58 volts peak to peak.
b. Gain =16 maximum input is 0.22 volts peak to peak.
2. Sample Rate – This entry allows for different sample rate selection.
a. 16 msec – 62.5 samples per second
b. 8 msec- 125 samples per second
c. 4 msec – 250 samples per second
d. 2 msec – 500 samples per second
e. 1 msec – 1000 samples per second
f. 0.5 msec- 2000 samples per second
g. 0.25 msec- 4000 samples per second
h. 0.125 msec – 8000 samples per second
i. 0.0625 msec – 16000 samples per second
j. 0.021 msec – 48000 samples per second
3. Acquisition Time – This entry selects the acquisition time for each acquisition.
4. Active Channels – Select number of active channels
5. Low Cut Filter – When checked will enable the 2Hz low cut filter in the
DAQlink III unit
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