Dielectric Loss in piezo sensors

HI,

I want to give dielectric loss of 0.02 on a piezo sensor. I have tried by altering the 'dielectric loss setting' in 'model builder/piezoelectric devices/piezoelectric materials/damping and loss' but it is not taking as there is not change in the conductance and susceptance value..

I am attaching the model for your quick refrence.

Please suggest the right way of giving dielectric loss factor.

Regards,
Naveet.