Operations and Features 3
Keysight U8001A/U8002A User’s and Service Guide 43
Keylock Operation
This operation provides locking function for the knob and all the buttons on front
panel of the equipment which allows end users to secure their desired settings.
The keylock is disabled by default when power-up.
To enable keylock
1 Press on the “Lock/Unlock” button. The LOCK annunciator will be turned on.
2 When the keylock function is enabled, the knob and all the buttons are
disabled EXCEPT “Lock/Unlock” button.
To disable keylock
1 Press and hold down the “Lock/Unlock” button for three seconds.
2 When the “Lock/Unlock” button is being held down, the display will show
“HOLD” until the keylock is disabled.
3 After the keylock is disabled, the LOCK annunciator will be turned off.
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