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2. Select [Start]. The zeroing interface as shown in the following figure is displayed. 
During the zeroing process, you can select [Cancel] to cancel zeroing.   
 
3.  The interface as shown in the following figure is displayed if the ongoing zeroing 
process is cancelled. Select [Retry] to re-zero. Select [OK] to quit zeroing.   
 
4.  The interface as shown in the following figure is displayed if zeroing fails. Select [Retry] 
to re-zero. Select [OK] to quit zeroing.