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12.2 Incorrect measurement socket warning
Measurement socket monitoring is integrated into the DMM. If the test leads are
connected to the wrong sockets (which can be dangerous for the user and dam-
age the DMM), the DMM triggers an acoustic and optical alarm.
As soon as the test leads are inserted into the current measurement sockets and
another measurement mode (excluding current measurement) is selected, the
DMM emits a piercing warning sound. This is also the case if the measurement
input between the current clamp socket and
mAµA
socket is swapped.
If the alarm is triggered and “LEAd” appears on the display, check that the leads
are connected to the correct sockets and that you have selected the correct
measurement mode
The multimeter triggers the alarm when the sockets are connected as follows:
Measurement
mode
V/mV/Ω/Hz/
/ /
mA/µA
A
Connected
sockets
mA/µA/
A
A
mA/µA
Interrupt the test setup immediately in the event of an alarm and check
that the correct measurement mode/measurement connection have been
selected. The display also indicates the correct measurement sockets to
use for each measurement range.
