While placing the order to Elmeasure, if the CT ratio is mentioned in the PO, then the particular meter constant will be written front and back side of the meter.
If the CT ratio is not provided, then meter constant will be calculated as follows,
For ex: CT rating = 100/5
CT constant = 20
Whatever the readings displayed in the meter to be multiplied with CT constant, then you will arrive for actual KWH.
If the CT ratio is informed and configured in the meter, then refer the attached file for the meter constant with respect to KWH readings.