FEA basics

 I have added a uniformly distributed load on a body ( weighing scale reading × gravity) and then i have also defined gravity seperately in static study of the part (so as to get the weight of the part to also join the act). What i am confused about is when i add gravity =-9.8m/s^ will this not multiply the load i have already applied which i calculated by multiplying the weighing scale reading and gravity?