In our previous related works of DTIP, amplitude enhancement was studied back in DTIP2011, while damping issue was preliminarily considered in DTIP2017. In DTIP2018, vibration characteristics was analyzed in a four cantilever array with and without mass perturbation. In this paper however, a calibration methodology is proposed for coupled resonators with manufacturing errors, where the detuning of their stiffness and mass will destroy the perfect localized equilibrium state. A localized trio cantilever array is taken as an example. The basic idea is to calibrate the manufacturing error on corresponding cantilever by sweeping the frequency before and after adding a known mass. The proposed methodology is supported at both theoretical and simulation levels for calibrating the manufacturing errors in the length, width, and thickness directions of the entire structure respectively.