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Home/Forums/U3/ SETTING VOLTAGE LEVEL TO 0 - 20 VOLTS ON LABJACK U3 HV
SETTING VOLTAGE LEVEL TO 0 - 20 VOLTS ON LABJACK U3 HV
In your application you set your analog input negative channel to 32. So if you wanted a reading from AIN1, set the positive channel to 1 and the negative channel to 32. If you are still running into issues, what application or UD library call are you trying to use?
The "Quick Note ..." column is to the right in the Channels list. You can see it in the 2nd screenshot on the following page (note that this page is about LJM not UD so does not really apply to you besides having a screenshot that shows the column you asked about):
Channel 32 is a software implemented negative channel for the -10/+20 V range. It is mentioned here:
https://labjack.com/support/datasheets/u3/hardware-description/ain/chann...
In your application you set your analog input negative channel to 32. So if you wanted a reading from AIN1, set the positive channel to 1 and the negative channel to 32. If you are still running into issues, what application or UD library call are you trying to use?
Sounds like you are referring to this:
https://labjack.com/support/ud/df-lj-app-guide/3.2
The "Quick Note ..." column is to the right in the Channels list. You can see it in the 2nd screenshot on the following page (note that this page is about LJM not UD so does not really apply to you besides having a screenshot that shows the column you asked about):
https://labjack.com/support/software/examples/ljm/daqfactory