Touch Scale Zero to set the scale to zero (within +/- 0.6 lb, or +/- 0.300 kg). The LED is green and can be on, flashing, or off. LED brightness is not programmable. The allowable zeroing weight limit of 0.6 lb and 0.3 kg is configurable. Refer to the Maximum Scale Zeroing Weight Limit parameter in the MP72 Scanner Scale Barcode Programming Guide for more information.