KERN DLB 160-3A Operating Instructions Manual page 84

Use the navigation buttons   to select the desired setting.
Au0 OFF = Auto Zero switched off
Au0 1 = Auto Zero range ± ½ digit
Au0 2 = Auto Zero range ± 3 digits
Au0 3 = Auto Zero range ± 7 digits
Au0 3E = Auto Zero range ± 7 digits in the whole weighing range
 Take over selection using the PRINT button.
Weighing balance returns to menu. Either make more settings in the menu or go
back to weighing mode as follows.
 Press the MENU button and keep it pressed until the acoustic signal gets mute.
The balance returns automatically into weighing mode.
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