International Safety Symbols; Measurements; Dc Voltage Measurements - Sonel CMM-10 Manual De Uso

5

International Safety Symbols

This symbol, adjacent to another symbol or terminal, indi-
cates the user must refer to the manual for further infor-
mation.
This symbol, adjacent to a terminal, indicates that, under
normal use, hazardous voltages may be present
Double insulation
It is recommended to get acquainted thoroughly with the con-
tents of the present chapter since it describes the measurement
systems, the manner of realisation of measurements and the basic
principles of interpretation of the results.
6.1

DC voltage measurements

Do not measure DC voltages if a motor on the circuit is being
switched ON or OFF. Large voltage surges may occur that
can damage the meter.
In order to realise a measurement of DC voltage, it is necessary
to realise the following actions:

Set the function switch to the V

With the RANGE button set the measurement range manually
if necessary,

Insert the black test lead banana plug into the negative COM
jack. Insert the red test lead banana plug into the positive
VΩTEMPHz%mAμA jack,

Touch the black test probe tip to the negative side of the cir-
cuit. Touch the red test probe tip to the positive side of the cir-
cuit,

Read the voltage in the display.
6

Measurements

CAUTION!
CMM-10 – USER MANUAL
position,
41