the ratio, in per cent, of the maximum difference between the calibration value and the corresponding value read on the straight line defined in 1.6 at the upper limit of the channel amplitude class
The absolute value of the linearity error of a data channel at any frequency in the CFC, must be equal to or less than 2,5 % of the value of the CAC, over the whole measurement range. ... The sensitivity coefficient and the linearity error must be determined by measuring the output signal of the data channel against a known input signal for various values of this signal.
