2
Operation and Features
Keylock Operation
This operation provides a locking function for the knob and all the buttons on the
front panel of the power supply, which allows you to secure your desired settings.
The keylock is disabled by default upon power-up.
1 Enable the keylock.
2 Disable the keylock.
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– Press the [Lock/Unlock] button.
– The LOCK annunciator turns on.
– When the keylock function is enabled, the knob and all the buttons are
disabled except the [Lock/Unlock] button.
– Press and hold the [Lock/Unlock] button for more than one second.
– While the [Lock/Unlock] button is being held down, the display will show
HOLd until the keylock is disabled.
– After the keylock is disabled, the LOCK annunciator turns off.
Keysight U8030A Series User's Guide