M30 does not correctly read power and energy

[admin]

This coefficient has nothing to do with CT. It’s just a proportional relationship to the correct reading.

[Francois]

Thank you. So it means the CT ratio cannot be adjusted and is fixed to 2000:1. Correct ?
How do you select the range of the CT (20 A, 100A for instance) to have a correct reading in HA ?

[admin]

Thank you. So it means the CT ratio cannot be adjusted and is fixed to 2000:1. Correct ? YES
How do you select the range of the CT (20 A, 100A for instance) to have a correct reading in HA ? Just connect different range's CT with M30, you just read data from serial port by MODBUS is ok.