Technical data

Features and Functions 2
34405A User’s and Service Guide 39
The Beeper
Normally, the multimeter beeps whenever certain conditions are met (for
example, the multimeter beeps when a stable reading is captured in
reading hold mode). The beeper is factory set to ON, but may be disabled
or enabled manually.
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.
A SYSTem:BEEPer command is sent.
An error is generated.
In addition to the beep operations just described, when the beeper is
ON, a single beep occurs for the following cases (turning the beeper
OFF disables the beep for the following cases):
When a new Min or Max value is stored
When a new stable reading is updated on display for Math Hold
operation
When a measurement exceeds the HI or LO Limit value
When a forward- biased is measured in the Diode function