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Why does the PM750MG meter display incorrect power readings or not show any current?

The connections from S1 and S2 on the current tansformer to I+, and I- on the back of the meter might be reversed, ensure that the wiring of the meter is correct as per the user manual

Incase of using a stand alone CTs, ensure the P2 is facing the load

Ensure that the meter has been programmed (e.g CT ratio , System Type)

S1 and S2 connections may still have the link in, (Please remove this while power is OFF)
 
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