I have updated the below link with your coefficent and plot.

http://www.8052.com/users/Nagarajan/CURVEFITR1.xls

Thank you for your detailed reply.

I am going to try in this way.

1. Read ACTUAL CT for unknown weight and DIVIDE BY 2000 with a 2 decimal precision.

2. Using 2nd order polynomial (options matlab, Mr.Kai) coefficicents determined using calibration curve.

3. Adjust the ACTUAL CT by using the error calculated.

4. Do further processing after compensation.


Thanks

V.Nagarajan