Hi,
I’m generating a voltage output (0-10v) to simulate a temp
range from 0-100deg c. The external 3rd party controller normally
accepts a 0-10v signal, and displays its temperature reading proportional to its
voltage input, i.e. 1v should equal 10 degs. When i inject 1v into the
controller from the daq, it reads near enough 10 deg (just slightly over) ,
however, as i increase this voltage, an error starts to grow at each ten of
degrees, almost like its needing a gain adjustment.
I noticed that the external controller does have a gain and
offset pot just before its own ADC. My question is, should i be trying to use
that to trim the signal, or could i create an artificial gain an offset in
labview to compensate?
Many thanks
