User manual

b) Incorrect wiring alarm

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 damage the DMM), the DMM triggers

an acoustic and optical alarm.

As soon as the test leads are inserted into the current measure-

ment 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 10 A socket (F) and mAµA socket (E) 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 diagram shows an example of incorrectly connected leads

that need to be reconnected.

The multimeter triggers the alarm when the sockets are con-

nected as follows:

Measurement

mode

V/mV/Ω/°C°F/Hz%/

/ /

mA/µA A

Connected

sockets

mA/µA//10A 10A mA/µA

Interrupt the test setup immediately in the event of an alarm and check that the correct measure-

ment mode/measurement connection has been selected. The display also indicates the correct

measurement sockets to use for each measurement range.