You can configure the data acquisition by using the Acquisition setting.
Sample rate specifies the number of samples acquired from the input signal per second. The unit is samples per second (S/s). The maximum sample rate per channel is 100 kS/s divided by the number of open channels. For example, when only one channel is open, the valid sample rate for this channel is between 200 mS/s and 100 kS/s. When four channels are open, the valid sample rate per channel is between 200 mS/s and 25 kS/s.