Quote Originally Posted by qdzung View Post
square root calculation shall be performed in DCS.
No. That's wrong. The original poster (OP) stated, "My FT Transfer function set as Square root". Go back and read it. So the flow transmitter is doing the square root function.

Hence, the answer to this thread's question relates to the conditions originally stated.

Maybe your plant has a policy that square root is done in the DCS. That's fine. Do it that way. But it does not relate to issue of a contractor providing the wrong range value for that point to the DCS.