Need help interpreting a Energy Meter datasheet
It looks like straightforward but poorly formatted.

Because their display cannot do half digits e.g. 0 to 1.999  they have spec'd it 1 to 99.9 range.

So you would choose this range in programming the meter for use of a 100A CT.

The next range includes both 200A and 600A.

The burden value selected is such that the meter is rated as;
"Current Impedance 5(6)A  = &lt; 0.3VA"


  So whatever CT ratio you choose the output is 5A or (6A)


see page 2 of spec for EM2172D DS ENG 190210

It looks like it may have been translated to english with somewhat amateur format. But I would never compl;)aint about it.