User`s guide

Remarks
Turning off the beeper does not disable the key click generated when you
press a front-panel key.
A beep tone is always emitted (even with the beep state turned OFF) in
the following cases:
A continuity measurement is less than or equal to the continuity
threshold (≤10 Ω).
A SYSTem:BEEPer command is sent.
An error occurs.
A beep tone is emitted only if the beep state is ON in the following cases:
A set LO or HI limit is exceeded in a limit test.
A stable reading is captured in the reading hold mode.
A forward-biased diode is measured in the diode test function.
The beeper setting is stored in non-volatile memory, and does not change
when power has been off, after a Factory Reset (*RST command), or after
an Instrument Preset (SYSTem:PRESet command).