User Manual Manual

5.6 System Menu
APS-1102 Programmable AC/DC Power Source 5-39
5.6.2 Beep sound
When the beep sound is on, a beep sounds when an incorrect operation is made, a key is pressed, or a
modify operation is made. When a protection function-related error occurs, an alarm sound will be output
regardless of the beep sound setting.
 Operation steps
1. Press the
or key to move the cursor to “BEEP”.
ENTERCANCEL
Cursor
2. Press the
ENTER
key to display the selection box.
ENTERCANCEL
Selection box
3. Press the
or key to move the cursor to the other keylock setting (i.e., to OFF when on
or to ON when off).
ENTERCANCEL
4. Press the
ENTER
key to complete the setting. Press the
CANCEL
key to cancel the setting.