Measurement Computing Data Translation DT3034, User Manual

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Chapter 5
62
Testing Continuous Analog Input
To verify that the board can perform a continuous analog input operation, do the following:
1. Connect known voltage sources, such as the outputs of a function generator, to analog
input channels 0 and 1 on the DT3034 board (using the differential configuration). Refer to
page 46 for an example of how to connect a differential analog input.
2. In the Quick DataAcq application, choose Scope from the Acquisition menu.
3. Select the appropriate DT3034 board from the Board list box.
4. In the Sec/Div list box, select the number of seconds per division (.1 to .00001) for the
display.
5. In the Channels list box, select analog input channel 1, and then click Add to add the
channel to the channel list.
Channel 0 is automatically added to the channel list .
6. Click Config from the Toolbar.
7. From the Config menu, select ChannelType , and then select Differential .
8. From the Config menu, select Range , and then select Bipolar or Unipolar depending on
the configuration of your board.
The default is Bipolar.
9. From the Scope view, double-click the input range of the channel to change the input
range of the board (±10 V, ±5 V, ±2.5 V, ±1.25 V for bipolar ranges or 0 to 10 V, 0 to 5 V, 0
to 2.5 V or 0 to 1.25 V for unipolar ranges).
The default is ±10 V. Note that the display changes to reflect the selected range for all the analog
input channels on the board.
10. In the Trigger box, select Auto to acquire data continuously from the specified channels or
Manual to acquire a burst of data from the specified channels.
11. Click Start from the Toolbar to start the continuous analog input operation.
The application displays the values acquired from each channel in a unique color on the oscilloscope
view.
12. Click Stop from the Toolbar to stop the operation.