Yokogawa Touch Screen GP20 - Manual (Page 250)

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IM 04L51B01-01EN
2.9 Disabling Operation (Operation lock function)
This section explains how to disable operation.
You need to set Security function Touch operation to Operation Lock under Basic
settings in Security settings.
2.9.1 Locking the Operation
1
Press MENU.
The menu screen appears.
2
Tap the Universal tab and then Ope lock Lock/Unlock.
The operation lock is enabled. The operation lock icon is displayed in the status display section.
2.9.2 Releasing the Operation Lock
1
Press MENU.
The menu screen appears.
2
Tap the Universal tab and then Ope lock Lock/Unlock.
The screen for entering a password appears.
3.
Enter the password, and then tap OK.
The operation lock is released. The operation lock icon disappears from the status display sec-
tion.
The password that you enter is displayed as a string of asterisks.
Operation complete