8.4.1 lock & unlock the keyboard:
8.4.1.1 Lock the keyboard
Method 1: in the subdirectory Utilities:
Method 2: in main menu:
8.4.1.2 Unlock the keyboard
After you lock the keyboard, the LCD will show 'UNLOCK'.
Press
key under the item 'UNLOCK', LCD will prompt 'PRESS [.] KEY TO UNLOCK',
You can unlock the keyboard as the LCD prompts.
8.4.2 Modify operator password:
In this function, you can modify the operator password.
1. Choose the item 'MODIFY OPERATOR PASSWORD', press 'ENTER'.
2. After the system prompts 'INPUT OLD PASSWORD', input the old password.
Choose 'LOCK THE 'KEYBOARD', press key 'ENTER'.
Choose 'LOCK' . LCD will prompt 'PRESS[.] KEY TO
LOCK' then press key '.'
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