ADLINK DAQe-2502 - Manual (Page 35)

Operation Theory 25
The relationship between counters and acquisition timing is illus-
trated in Figure 4-1.
Figure 4-1: Scan Timing
NOTE The maximum A/D sampling rate is 400 KHz for DAQ-/
DAQe-/PXI-2502/2501 card. The minimum setting of
SI2_counter is 100.
The Scan Interval may not be smaller than the interval of
data Sampling Interval multiplied by the Number of chan-
nels per Scan. For example: SI_counter >= SI2_counter
* NumChan_Counter.