B&K Precision 879B - Manual - Manual (Page 42)

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Beep Sound Setting (bEEP)
The “ bEEP” menu option allows the user to enable or
disable the beep sound for every key press.
Note: This option only disables the beep sound for
each key press. It does not disable the beep sound
for “ Static Recording” and “Tolerance” mode, as well
as the “ auto power-off” warning.
To turn ON the beep, push either the or
arrow keys until the secondary display shows “ ON”.
To turn OFF the beep, push either the or
arrow keys until the secondary display shows “ OFF”.
Default Setting: ON
Auto power-off Setting (AoFF)
The “ AoFF” menu option allows the user to select the
auto power-off timer. This timer is always counting
continuously. It resets every time a button is pressed
or if an action occurred. If the meter is left untouched
or unattended, the timer will count until the configured
time is up. This is particularly important if the user
wants to preserve battery life or run the meter
continuously without interruption.