Sonel CMP-400, User Manual

Page: 43 / 84

CMP-400 – USER MANUAL
41

having done the measurement disconnect the test leads from
the meter.
5.3 Resistance measurements
WARNING:
Measurements must not be realised in live circuits. Capaci-
tors must be discharged.
WARNING:
Do not realise measurements if the battery compartment is
open.
In order to realise a measurement of the resistance it is neces-
sary to realise the following actions:

place the rotational selector in the position
Ω
,

connect the red test lead to sockets V/
Ω/TEMP
and the black
one to sockets COM ,

make sure symbol
is displayed with open test leads, and in
the case of shorted terminals of the measurement probes the
dis
play shows „0”,

with the RANGE button set the measurement range manually
if necessary,

touch the test probe tips across the circuit or component under
test; it is best to disconnect one side of the device under test
so the rest of the circuit will not interfere with the resistance
reading,

read the result of the measurement on the display,

having done the measurement disconnect the test leads from
the meter.