How to adjust the 30 kg Zhong Chao weighing instrument after entering the password?

Short circuit first, peel -3- peel-put weight (59kg)- peel-input weight (50.00)- peel-input total weight-peel.

Calibration Instructions for Superman Electronic Scale (New Edition);

658- peeling -3- peeling-placing weight (59kg)- peeling-input weight (50.00)- peeling-input total weight-peeling.

According to the above operation procedure