NI DAQ interactions with a temperature control unit

[yadavrahul]

Unfortunately, I will not be able to provide a screenshot or exact data. But here's the issue. We're needing to run a 5V PWM from an Arduino uno r3 through a Wavelength Electronics PTC K-CH 5. When hooking up the DAQ to the unit it's been reading as a certain voltage equivalent but once disconnected and reconnected, the value changes, any suggestions? When checking online, the most frequent solution has been an RC Filter.

[Minions]

It mentions that you need to have floating power sources; otherwise, it can affect your readings.

[karanzale]

i had similar issue with one my blog i could not able to find any support for the issue so i left. i hope this post would have been there at that time.

I hope this post would help other to sort things up