DATATEC EDU34450A Guia Del Usuario página 74

To change the high limit value, press High Limit. Use the arrow keys to set a desired value. Press [Enter] when done.
The high limit value must always be greater than the lower limit.
To change the low limit value, press Low Limit. Use the arrow keys to set a desired value. Press [Enter] when done.
To enable the beeper, press Beeper ON | OFF. Each time the input value transitions from PASS to HIGH or from
PASS to LOW, or when transitioning directly from HIGH to LOW or LOW to HIGH, the instrument beeps once.
To disable the Limit operation, press Limits ON | OFF.
74 Keysight EDU34450A User's Guide