ECG acquisition - problems with charts

[rezituh]

Hello,

I am trying to acquire an ECG, with a USB-6008 card.

I have used DAQ Assistant, in continuous acquisition mode, with 1 sample to read with a 500 rate. I want to see the signal has in a oscilloscope.

But, I have a problem, I cannot change the x-axis or the time division. For example, to see more or less ECG's int the chart.

How can I fix this?

Best Regards,

Carlos

[Kristen_K.]

Hi rezituh, 

if you double click on the scales for the axis you should be able to type in a new value.  If you want a specific scale, make sure to turn off Auto-scaling by right-clicking on the plot and going to X Scale >> AutoScale X (there should not be check mark next to it if it's off).  you can also right-click on the plot and go to Properties.  The properties window will pop up; go to the Scales tab.  You can change the divisions there. 

Post back if you have more questions.

~Kristen