100 U1253B User’s and Service Guide
4 Changing the Default Settings
Setting Auto Power Off mode
• To enable APO (Auto Power Off), set its timer to any
value within the range of 1 to 99 minutes.
• The instrument may turn off automatically (with APO
enabled) after the specified amount of time, if none of the
following happens within that time:
• Any push- button is pressed.
• A measurement function is changed.
• Dynamic recording is set.
• 1 ms peak hold is set.
• APO is disabled in the Setup mode.
• To reactivate the multimeter after auto power off, simply
press any button or change the rotary switch position.
• To disable APO, select OFF. When APO is disable, the
annunciator will be turned off. The multimeter will
remain on until you manually turn the rotary switch to
the OFF position.