changing the data logging rate

[Pfizer]

How can I modify the data collection rate for the NI USB-TC01?  I would like to sample (temperature) every minute instead of every second.  Thanks for helping.

[Seth_B.]

Are you using NI-DAQmx to communicate with the USB TC-01 or are you using the built in temperature logger?

Regards,

[Pfizer]

I am using the built in temperature logger.

Cheers!

[Seth_B.]

The built in temperature logger is preset to sample once a second.  If you need more time between samples, you'll need to use an Application Development Environment (such as LabVIEW, LabVIEW SignalExpress, or Visual Studio) to write a program that samples from the USB TC-01 once a minute and then writes it to a file.  There are some examples on the  Do More with Your NI USB-TC01 Community Group that can help get you started.

Hope this helps!

[charly12]

Hello,

I would like to acquire 2 samples per second instead of 1, as done by the built in data logger. I am currently trying to do so using labview. In the DAQ assistant configuration window, I tried to change the acquisition mode in the timing setting from "1 sample (on demand)" to "one sample (HW timed)" with 2 Hz as a rate. However, this action is refused by DAQ mx and the error report says that only "on demand" is possible. Then how can I modify the sampling rate from 1 Hz to 2 Hz?

Thanks in advance,

Charly

[Dennis_Knutson]

You've got your DAQmx Read/DAQ Assistant in a loop, right? Just use a Wait or Delay function set for .5 seconds.

[charly12]

Thank you that was indeed very simple!