DC Current Measurement using NI 9227 and NI 9246

[linu95k]

Hi can someone explain to me how Input coupling affects measurement?

The NI 9227 has DC coupling whereas NI 9246 has AC coupling what does this imply and how does it affect the current measurement?

Also the current range for both the modules is give in Arms, how would that affect a DC current measurement?

I am trying to measure DC current using these modules.

[GerdW]

Hi linu,

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@linu95k wrote:

Hi can someone explain to me how Input coupling affects measurement?

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Read the manual for any scope, as they mostly/all offer DC/AC coupling…

(This is the first hit when using Google to search for "dc coupling ac coupling".)