4 Changing the Default Settings
126 Keysight U1253B User’s and Service Guide
Setting Auto Power Off mode
– To enable Auto Power Off (APO) set the timer to any value within the range of 1
to 99 minutes.
– The multimeter may turn off automatically (with APO enabled) if neither of the
following happens within that time period:
– 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 activate the multimeter after auto power off, simply press any button or
change the rotary switch position.
– To disable APO, select OFF. When APO is disabled, the annunciator will
be turned off. The multimeter will remain on until you manually turn the rotary
switch to the OFF position.
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