To learn how to enter settings, follow this guide here.
Auto Zero is a setting unique to the Pearl scale model. When Auto Zero setting is off or disabled, the initial weight on the weighing pan must be less than 50% of capacity, i.e., less than 1kg for Acaia coffee scale before the scale is turned on; otherwise, an error [ Er.303 ] occurs.
When the error occurs, the scale would not work until the initial weight on the weighing pan is cleared. When Auto Zero setting is on or enabled, the scale displays the initial weight directly regardless of whether the weight is over 50% of capacity.
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