Power Factor not Reading Correctly

I am using the 3 phase meter for monitoring three different 120VAC circuits.  The power, amps and voltages are reading correctly but the power factor is not.  Please advise.

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Hi:

The most possibility for this problem is paring mistake.
For example,
You connect the Ua with the voltage of phase A but clamp the CTa to the wire of phase B.


Please check.

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