USB-1208HS-4AO Output when unexpected

[ConnorFultz_BIOPAC]

I am using the mcculw library and experiencing some strange phenomena. Basically when this line of code is being processed (ao_range = ao_info.supported_ranges[0]) the device is outputting a brief -10V pulse. Verified by running line by line. At this point I am unsure if there is something wrong with the code or if the device is faulty. Would you be willing to take a look at the code and provide some feedback? It is one script with less than 100 lines of code.

Edited July 18, 2022 by ConnorFultz_BIOPAC

[Jeffrey]

Hello @ConnorFultz_BIOPAC,

As an alternative, please test the analog output with the mcculw example ULAO01.py.  this example demonstrates the recommended implementation of a_out().

You can also test with v_out.py.

Regards,

Jeffrey 

[ConnorFultz_BIOPAC]

Thanks @Jeffrey. I will see about testing that example program. I think it was just an error in how the code was implemented - We ended up just changing the code to be "ao_range = ULRange.BIP10VOLTS" and that got rid of the erroneous -10v analog out.