Answer / rajkumar

120 degrees in the same plane (circular), especially if
there has not been sufficient thermal mixing of the process
at the point of measurement. In this case, the average of
the temps should be used for control (as opposed to the
middle of 3) in addition to any deviation checking used to
detect a failed TC.

If any thermal streaming is occurring, then mounting the TCs
linearily down the pipeline reduces your chances of
measuring it.

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